Merge tag 'v1.127.0' into pmm-6401-read-prometheus-data-files

v1.127.0

.github/workflows/build.yml

@@ -63,7 +63,7 @@ jobs:
 
       - name: Setup Go
         id: go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           cache-dependency-path: |
             go.sum

.github/workflows/check-commit-signed.yml

@@ -0,0 +1,37 @@
+name: check-commit-signed
+
+on:
+  pull_request:
+
+jobs:
+  check-commit-signed:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0  # we need full history for commit verification
+
+      - name: Check commit signatures
+        run: |
+          if [ "${{ github.event_name }}" != "pull_request" ]; then
+            echo "Not a PR event, skipping signature check"
+            exit 0
+          fi
+          
+          RANGE="${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }}"
+          echo "Checking commits in PR range: $RANGE"
+          
+          if [ -z "$(git rev-list $RANGE)" ]; then
+            echo "No new commits in this PR, skipping signature check"
+            exit 0
+          fi
+          
+          unsigned=$(git log --pretty="%H %G?" $RANGE | grep -vE " (G|E)$" || true)
+          if [ -n "$unsigned" ]; then
+            echo "Found unsigned commits:"
+            echo "$unsigned"
+            exit 1
+          fi
+          
+          echo "All commits in PR are signed (G or E)"

.github/workflows/check-licenses.yml

@@ -19,7 +19,7 @@ jobs:
 
       - name: Setup Go
         id: go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version: stable
           cache: false

.github/workflows/codeql-analysis-go.yml

@@ -33,7 +33,7 @@ jobs:
 
       - name: Set up Go
         id: go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           cache: false
           go-version: stable

.github/workflows/test.yml

@@ -36,7 +36,7 @@ jobs:
 
       - name: Setup Go
         id: go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           cache-dependency-path: |
             go.sum
@@ -75,7 +75,7 @@ jobs:
 
       - name: Setup Go
         id: go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           cache-dependency-path: |
             go.sum
@@ -101,7 +101,7 @@ jobs:
 
       - name: Setup Go
         id: go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           cache-dependency-path: |
             go.sum

SECURITY.md

@@ -4,12 +4,11 @@
 
 The following versions of VictoriaMetrics receive regular security fixes:
 
-| Version | Supported          |
-|---------|--------------------|
-| [latest release](https://docs.victoriametrics.com/victoriametrics/changelog/) | :white_check_mark: |
-| v1.102.x [LTS line](https://docs.victoriametrics.com/victoriametrics/lts-releases/) | :white_check_mark: |
-| v1.110.x [LTS line](https://docs.victoriametrics.com/victoriametrics/lts-releases/) | :white_check_mark: |
-| other releases  | :x:                |
+| Version                                                                        | Supported          |
+|--------------------------------------------------------------------------------|--------------------|
+| [Latest release](https://docs.victoriametrics.com/victoriametrics/changelog/)  | :white_check_mark: |
+| [LTS releases](https://docs.victoriametrics.com/victoriametrics/lts-releases/) | :white_check_mark: |
+| other releases                                                                 | :x:                |
 
 See [this page](https://victoriametrics.com/security/) for more details.
 

app/victoria-metrics/main.go

@@ -39,6 +39,8 @@ var (
 		"The saved data survives unclean shutdowns such as OOM crash, hardware reset, SIGKILL, etc. "+
 		"Bigger intervals may help increase the lifetime of flash storage with limited write cycles (e.g. Raspberry PI). "+
 		"Smaller intervals increase disk IO load. Minimum supported value is 1s")
+	downsamplingPeriods = flagutil.NewArrayString("downsampling.period", "Comma-separated downsampling periods in the format 'offset:period'. For example, '30d:10m' instructs "+
+		"to leave a single sample per 10 minutes for samples older than 30 days. See https://docs.victoriametrics.com/#downsampling for details")
 	maxIngestionRate = flag.Int("maxIngestionRate", 0, "The maximum number of samples vmsingle can receive per second. Data ingestion is paused when the limit is exceeded. "+
 		"By default there are no limits on samples ingestion rate.")
 	finalDedupScheduleInterval = flag.Duration("storage.finalDedupScheduleCheckInterval", time.Hour, "The interval for checking when final deduplication process should be started."+
@@ -47,6 +49,12 @@ var (
 		" See also https://docs.victoriametrics.com/victoriametrics/single-server-victoriametrics/#deduplication")
 )
 
+// custom api help links [["/api","doc"]] without http.pathPrefix.
+var customAPIPathList = [][]string{
+	{"/graph/explore", "explore metrics grafana page"},
+	{"/graph/d/prometheus-advanced/advanced-data-exploration", "PMM grafana dashboard"},
+}
+
 func main() {
 	// VictoriaMetrics is optimized for reduced memory allocations,
 	// so it can run with the reduced GOGC in order to reduce the used memory,
@@ -87,7 +95,10 @@ func main() {
 	}
 	logger.Infof("starting VictoriaMetrics at %q...", listenAddrs)
 	startTime := time.Now()
-	storage.SetDedupInterval(*minScrapeInterval)
+	err := storage.SetDownsamplingPeriods(*downsamplingPeriods, *minScrapeInterval)
+	if err != nil {
+		logger.Fatalf("cannot parse -downsampling.period: %s", err)
+	}
 	storage.SetDataFlushInterval(*inmemoryDataFlushInterval)
 	if *finalDedupScheduleInterval < time.Hour {
 		logger.Fatalf("-dedup.finalDedupScheduleCheckInterval cannot be smaller than 1 hour; got %s", *finalDedupScheduleInterval)
@@ -151,6 +162,10 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
 			{"api/v1/status/active_queries", "active queries"},
 			{"-/reload", "reload configuration"},
 		})
+		for _, p := range customAPIPathList {
+			p, doc := p[0], p[1]
+			fmt.Fprintf(w, "<a href=%q>%s</a> - %s<br/>", p, p, doc)
+		}
 		return true
 	}
 	if vminsert.RequestHandler(w, r) {
@@ -169,7 +184,7 @@ func usage() {
 	const s = `
 victoria-metrics is a time series database and monitoring solution.
 
-See the docs at https://docs.victoriametrics.com/
+See the docs at https://docs.victoriametrics.com/victoriametrics/
 `
 	flagutil.Usage(s)
 }

app/vmagent/opentelemetry/request_handler.go

@@ -7,8 +7,8 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentelemetry/firehose"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/opentelemetry/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -68,7 +68,7 @@ func insertRows(at *auth.Token, tss []prompb.TimeSeries, mms []prompb.MetricMeta
 	ctx.WriteRequest.Timeseries = tssDst
 
 	var metadataTotal int
-	if promscrape.IsMetadataEnabled() {
+	if prommetadata.IsEnabled() {
 		var accountID, projectID uint32
 		if at != nil {
 			accountID = at.AccountID

app/vmagent/prometheusimport/request_handler.go

@@ -7,8 +7,8 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -36,7 +36,7 @@ func InsertHandler(at *auth.Token, req *http.Request) error {
 		return err
 	}
 	encoding := req.Header.Get("Content-Encoding")
-	return stream.Parse(req.Body, defaultTimestamp, encoding, true, promscrape.IsMetadataEnabled(), func(rows []prometheus.Row, mms []prometheus.Metadata) error {
+	return stream.Parse(req.Body, defaultTimestamp, encoding, true, prommetadata.IsEnabled(), func(rows []prometheus.Row, mms []prometheus.Metadata) error {
 		return insertRows(at, rows, mms, extraLabels)
 	}, func(s string) {
 		httpserver.LogError(req, s)

app/vmagent/promremotewrite/request_handler.go

@@ -6,8 +6,8 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmagent/remotewrite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/auth"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/promremotewrite/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/tenantmetrics"
@@ -71,7 +71,7 @@ func insertRows(at *auth.Token, timeseries []prompb.TimeSeries, mms []prompb.Met
 	ctx.WriteRequest.Timeseries = tssDst
 
 	var metadataTotal int
-	if promscrape.IsMetadataEnabled() {
+	if prommetadata.IsEnabled() {
 		var accountID, projectID uint32
 		if at != nil {
 			accountID = at.AccountID

app/vmagent/remotewrite/client.go

@@ -463,12 +463,6 @@ again:
 		// - Real-world implementations of v1 use both 400 and 415 status codes.
 		// See more in research: https://github.com/VictoriaMetrics/VictoriaMetrics/pull/8462#issuecomment-2786918054
 	case 415, 400:
-		if c.canDowngradeVMProto.Swap(false) {
-			logger.Infof("received unsupported media type or bad request from remote storage at %q. Downgrading protocol from VictoriaMetrics to Prometheus remote write for all future requests. "+
-				"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol", c.sanitizedURL)
-			c.useVMProto.Store(false)
-		}
-
 		if encoding.IsZstd(block) {
 			logger.Infof("received unsupported media type or bad request from remote storage at %q. Re-packing the block to Prometheus remote write and retrying."+
 				"See https://docs.victoriametrics.com/victoriametrics/vmagent/#victoriametrics-remote-write-protocol", c.sanitizedURL)

app/vmagent/remotewrite/client_test.go

@@ -93,10 +93,7 @@ func TestParseRetryAfterHeader(t *testing.T) {
 
 // helper calculate the max possible time duration calculated by timeutil.AddJitterToDuration.
 func helper(d time.Duration) time.Duration {
-	dv := d / 10
-	if dv > 10*time.Second {
-		dv = 10 * time.Second
-	}
+	dv := min(d/10, 10*time.Second)
 
 	return d + dv
 }

app/vmalert-tool/unittest/unittest.go

@@ -34,6 +34,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/netutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
 	"github.com/VictoriaMetrics/metrics"
 )
@@ -84,7 +85,8 @@ func UnitTest(files []string, disableGroupLabel bool, externalLabels []string, e
 		defer server.Close()
 	} else {
 		httpListenAddr = httpListenPort
-		ln, err := net.Listen("tcp", fmt.Sprintf(":%s", httpListenPort))
+
+		ln, err := net.Listen(netutil.GetTCPNetwork(), fmt.Sprintf(":%s", httpListenPort))
 		if err != nil {
 			logger.Fatalf("cannot listen on port %s: %v", httpListenPort, err)
 		}
@@ -130,7 +132,7 @@ func UnitTest(files []string, disableGroupLabel bool, externalLabels []string, e
 		}
 		labels[s[:n]] = s[n+1:]
 	}
-	_, err = notifier.Init(nil, labels, externalURL)
+	_, err = notifier.Init(labels, externalURL)
 	if err != nil {
 		logger.Fatalf("failed to init notifier: %v", err)
 	}

app/vmalert/config/config.go

@@ -31,7 +31,7 @@ type Group struct {
 	// EvalDelay will adjust the `time` parameter of rule evaluation requests to compensate intentional query delay from datasource.
 	// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5155
 	EvalDelay   *promutil.Duration `yaml:"eval_delay,omitempty"`
-	Limit       int                `yaml:"limit,omitempty"`
+	Limit       *int               `yaml:"limit,omitempty"`
 	Rules       []Rule             `yaml:"rules"`
 	Concurrency int                `yaml:"concurrency"`
 	// Labels is a set of label value pairs, that will be added to every rule.
@@ -91,8 +91,8 @@ func (g *Group) Validate(validateTplFn ValidateTplFn, validateExpressions bool)
 	if g.EvalOffset != nil && g.EvalDelay != nil {
 		return fmt.Errorf("eval_offset cannot be used with eval_delay")
 	}
-	if g.Limit < 0 {
-		return fmt.Errorf("invalid limit %d, shouldn't be less than 0", g.Limit)
+	if g.Limit != nil && *g.Limit < 0 {
+		return fmt.Errorf("invalid limit %d, shouldn't be less than 0", *g.Limit)
 	}
 	if g.Concurrency < 0 {
 		return fmt.Errorf("invalid concurrency %d, shouldn't be less than 0", g.Concurrency)

app/vmalert/config/config_test.go

@@ -181,9 +181,10 @@ func TestGroupValidate_Failure(t *testing.T) {
 		EvalOffset: promutil.NewDuration(2 * time.Minute),
 	}, false, "eval_offset should be smaller than interval")
 
+	limit := -1
 	f(&Group{
 		Name:  "wrong limit",
-		Limit: -1,
+		Limit: &limit,
 	}, false, "invalid limit")
 
 	f(&Group{

app/vmalert/datasource/datasource.go

@@ -132,10 +132,7 @@ func (ls Labels) String() string {
 // a=[]Label{{Name: "a", Value: "2"}},b=[]Label{{Name: "a", Value: "1"}}, return 1
 // a=[]Label{{Name: "a", Value: "1"}},b=[]Label{{Name: "a", Value: "1"}}, return 0
 func LabelCompare(a, b Labels) int {
-	l := len(a)
-	if len(b) < l {
-		l = len(b)
-	}
+	l := min(len(b), len(a))
 
 	for i := 0; i < l; i++ {
 		if a[i].Name != b[i].Name {

app/vmalert/main.go

@@ -7,7 +7,6 @@ import (
 	"net/url"
 	"os"
 	"sort"
-	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -83,8 +82,7 @@ absolute path to all .tpl files in root.
 )
 
 var (
-	alertURLGeneratorFn notifier.AlertURLGenerator
-	extURL              *url.URL
+	extURL *url.URL
 )
 
 func main() {
@@ -121,7 +119,7 @@ func main() {
 		return
 	}
 
-	alertURLGeneratorFn, err = getAlertURLGenerator(extURL, *externalAlertSource, *validateTemplates)
+	err = notifier.InitAlertURLGeneratorFn(extURL, *externalAlertSource, *validateTemplates)
 	if err != nil {
 		logger.Fatalf("failed to init `external.alert.source`: %s", err)
 	}
@@ -228,7 +226,7 @@ func newManager(ctx context.Context) (*manager, error) {
 		labels[s[:n]] = s[n+1:]
 	}
 
-	nts, err := notifier.Init(alertURLGeneratorFn, labels, *externalURL)
+	nts, err := notifier.Init(labels, *externalURL)
 	if err != nil {
 		return nil, fmt.Errorf("failed to init notifier: %w", err)
 	}
@@ -292,35 +290,6 @@ func getHostnameAsExternalURL(addr string, isSecure bool) (*url.URL, error) {
 	return url.Parse(fmt.Sprintf("%s%s%s", schema, hname, port))
 }
 
-func getAlertURLGenerator(externalURL *url.URL, externalAlertSource string, validateTemplate bool) (notifier.AlertURLGenerator, error) {
-	if externalAlertSource == "" {
-		return func(a notifier.Alert) string {
-			gID, aID := strconv.FormatUint(a.GroupID, 10), strconv.FormatUint(a.ID, 10)
-			return fmt.Sprintf("%s/vmalert/alert?%s=%s&%s=%s", externalURL, paramGroupID, gID, paramAlertID, aID)
-		}, nil
-	}
-	if validateTemplate {
-		if err := notifier.ValidateTemplates(map[string]string{
-			"tpl": externalAlertSource,
-		}); err != nil {
-			return nil, fmt.Errorf("error validating source template %s: %w", externalAlertSource, err)
-		}
-	}
-	m := map[string]string{
-		"tpl": externalAlertSource,
-	}
-	return func(alert notifier.Alert) string {
-		qFn := func(_ string) ([]datasource.Metric, error) {
-			return nil, fmt.Errorf("`query` template isn't supported for alert source template")
-		}
-		templated, err := alert.ExecTemplate(qFn, alert.Labels, m)
-		if err != nil {
-			logger.Errorf("cannot template alert source: %s", err)
-		}
-		return fmt.Sprintf("%s/%s", externalURL, templated["tpl"])
-	}, nil
-}
-
 func usage() {
 	const s = `
 vmalert processes alerts and recording rules.

app/vmalert/main_test.go

@@ -49,30 +49,6 @@ func TestGetExternalURL(t *testing.T) {
 	}
 }
 
-func TestGetAlertURLGenerator(t *testing.T) {
-	testAlert := notifier.Alert{GroupID: 42, ID: 2, Value: 4, Labels: map[string]string{"tenant": "baz"}}
-	u, _ := url.Parse("https://victoriametrics.com/path")
-	fn, err := getAlertURLGenerator(u, "", false)
-	if err != nil {
-		t.Fatalf("unexpected error %s", err)
-	}
-	exp := fmt.Sprintf("https://victoriametrics.com/path/vmalert/alert?%s=42&%s=2", paramGroupID, paramAlertID)
-	if exp != fn(testAlert) {
-		t.Fatalf("unexpected url want %s, got %s", exp, fn(testAlert))
-	}
-	_, err = getAlertURLGenerator(nil, "foo?{{invalid}}", true)
-	if err == nil {
-		t.Fatalf("expected template validation error got nil")
-	}
-	fn, err = getAlertURLGenerator(u, "foo?query={{$value}}&ds={{ $labels.tenant }}", true)
-	if err != nil {
-		t.Fatalf("unexpected error %s", err)
-	}
-	if exp := "https://victoriametrics.com/path/foo?query=4&ds=baz"; exp != fn(testAlert) {
-		t.Fatalf("unexpected url want %s, got %s", exp, fn(testAlert))
-	}
-}
-
 func TestConfigReload(t *testing.T) {
 	originalRulePath := *rulePath
 	originalExternalURL := extURL

app/vmalert/manager.go

@@ -29,25 +29,37 @@ type manager struct {
 	groups   map[uint64]*rule.Group
 }
 
-// ruleAPI generates apiRule object from alert by its ID(hash)
-func (m *manager) ruleAPI(gID, rID uint64) (apiRule, error) {
+// groupAPI generates apiGroup object from group by its ID(hash)
+func (m *manager) groupAPI(gID uint64) (*rule.ApiGroup, error) {
 	m.groupsMu.RLock()
 	defer m.groupsMu.RUnlock()
 
 	g, ok := m.groups[gID]
 	if !ok {
-		return apiRule{}, fmt.Errorf("can't find group with id %d", gID)
+		return nil, fmt.Errorf("can't find group with id %d", gID)
 	}
-	for _, rule := range g.Rules {
-		if rule.ID() == rID {
-			return ruleToAPI(rule), nil
+	return g.ToAPI(), nil
+}
+
+// ruleAPI generates apiRule object from alert by its ID(hash)
+func (m *manager) ruleAPI(gID, rID uint64) (rule.ApiRule, error) {
+	m.groupsMu.RLock()
+	defer m.groupsMu.RUnlock()
+
+	g, ok := m.groups[gID]
+	if !ok {
+		return rule.ApiRule{}, fmt.Errorf("can't find group with id %d", gID)
+	}
+	for _, r := range g.Rules {
+		if r.ID() == rID {
+			return r.ToAPI(), nil
 		}
 	}
-	return apiRule{}, fmt.Errorf("can't find rule with id %d in group %q", rID, g.Name)
+	return rule.ApiRule{}, fmt.Errorf("can't find rule with id %d in group %q", rID, g.Name)
 }
 
 // alertAPI generates apiAlert object from alert by its ID(hash)
-func (m *manager) alertAPI(gID, aID uint64) (*apiAlert, error) {
+func (m *manager) alertAPI(gID, aID uint64) (*rule.ApiAlert, error) {
 	m.groupsMu.RLock()
 	defer m.groupsMu.RUnlock()
 
@@ -60,7 +72,7 @@ func (m *manager) alertAPI(gID, aID uint64) (*apiAlert, error) {
 		if !ok {
 			continue
 		}
-		if apiAlert := alertToAPI(ar, aID); apiAlert != nil {
+		if apiAlert := ar.AlertToAPI(aID); apiAlert != nil {
 			return apiAlert, nil
 		}
 	}

app/vmalert/notifier/alert_test.go

@@ -20,7 +20,7 @@ func TestAlertExecTemplate(t *testing.T) {
 	)
 	extLabels["cluster"] = extCluster
 	extLabels["dc"] = extDC
-	_, err := Init(nil, extLabels, extURL)
+	_, err := Init(extLabels, extURL)
 	checkErr(t, err)
 
 	f := func(alert *Alert, annotations map[string]string, tplExpected map[string]string) {

app/vmalert/notifier/alertmanager.go

@@ -22,10 +22,11 @@ import (
 // AlertManager represents integration provider with Prometheus alert manager
 // https://github.com/prometheus/alertmanager
 type AlertManager struct {
-	addr    *url.URL
-	argFunc AlertURLGenerator
-	client  *http.Client
-	timeout time.Duration
+	addr      *url.URL
+	argFunc   AlertURLGenerator
+	client    *http.Client
+	timeout   time.Duration
+	lastError string
 
 	authCfg *promauth.Config
 	// stores already parsed RelabelConfigs object
@@ -71,6 +72,10 @@ func (am AlertManager) Addr() string {
 	return am.addr.Redacted()
 }
 
+func (am *AlertManager) LastError() string {
+	return am.lastError
+}
+
 // Send an alert or resolve message
 func (am *AlertManager) Send(ctx context.Context, alerts []Alert, headers map[string]string) error {
 	am.metrics.alertsSent.Add(len(alerts))
@@ -79,6 +84,9 @@ func (am *AlertManager) Send(ctx context.Context, alerts []Alert, headers map[st
 	am.metrics.alertsSendDuration.UpdateDuration(startTime)
 	if err != nil {
 		am.metrics.alertsSendErrors.Add(len(alerts))
+		am.lastError = err.Error()
+	} else {
+		am.lastError = ""
 	}
 	return err
 }

app/vmalert/notifier/faker.go

@@ -18,6 +18,11 @@ type FakeNotifier struct {
 // Close does nothing
 func (*FakeNotifier) Close() {}
 
+// LastError returns last error message
+func (*FakeNotifier) LastError() string {
+	return ""
+}
+
 // Addr returns ""
 func (*FakeNotifier) Addr() string { return "" }
 

app/vmalert/notifier/init.go

@@ -4,10 +4,13 @@ import (
 	"flag"
 	"fmt"
 	"net/url"
+	"strconv"
 	"strings"
 	"time"
 
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promauth"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutil"
 )
@@ -57,6 +60,42 @@ var (
 	sendTimeout = flagutil.NewArrayDuration("notifier.sendTimeout", 10*time.Second, "Timeout when sending alerts to the corresponding -notifier.url")
 )
 
+// AlertURLGeneratorFn returns a URL to the passed alert object.
+// Call InitAlertURLGeneratorFn before using this function.
+var AlertURLGeneratorFn AlertURLGenerator
+
+// InitAlertURLGeneratorFn populates AlertURLGeneratorFn
+func InitAlertURLGeneratorFn(externalURL *url.URL, externalAlertSource string, validateTemplate bool) error {
+	if externalAlertSource == "" {
+		AlertURLGeneratorFn = func(a Alert) string {
+			gID, aID := strconv.FormatUint(a.GroupID, 10), strconv.FormatUint(a.ID, 10)
+			return fmt.Sprintf("%s/vmalert/alert?%s=%s&%s=%s", externalURL, "group_id", gID, "alert_id", aID)
+		}
+		return nil
+	}
+	if validateTemplate {
+		if err := ValidateTemplates(map[string]string{
+			"tpl": externalAlertSource,
+		}); err != nil {
+			return fmt.Errorf("error validating source template %s: %w", externalAlertSource, err)
+		}
+	}
+	m := map[string]string{
+		"tpl": externalAlertSource,
+	}
+	AlertURLGeneratorFn = func(alert Alert) string {
+		qFn := func(_ string) ([]datasource.Metric, error) {
+			return nil, fmt.Errorf("`query` template isn't supported for alert source template")
+		}
+		templated, err := alert.ExecTemplate(qFn, alert.Labels, m)
+		if err != nil {
+			logger.Errorf("cannot template alert source: %s", err)
+		}
+		return fmt.Sprintf("%s/%s", externalURL, templated["tpl"])
+	}
+	return nil
+}
+
 // cw holds a configWatcher for configPath configuration file
 // configWatcher provides a list of Notifier objects discovered
 // from static config or via service discovery.
@@ -90,7 +129,7 @@ var (
 //   - configuration via file. Supports live reloads and service discovery.
 //
 // Init returns an error if both mods are used.
-func Init(gen AlertURLGenerator, extLabels map[string]string, extURL string) (func() []Notifier, error) {
+func Init(extLabels map[string]string, extURL string) (func() []Notifier, error) {
 	externalURL = extURL
 	externalLabels = extLabels
 	_, err := url.Parse(externalURL)
@@ -117,7 +156,7 @@ func Init(gen AlertURLGenerator, extLabels map[string]string, extURL string) (fu
 	}
 
 	if len(*addrs) > 0 {
-		notifiers, err := notifiersFromFlags(gen)
+		notifiers, err := notifiersFromFlags(AlertURLGeneratorFn)
 		if err != nil {
 			return nil, fmt.Errorf("failed to create notifier from flag values: %w", err)
 		}
@@ -127,7 +166,7 @@ func Init(gen AlertURLGenerator, extLabels map[string]string, extURL string) (fu
 		return staticNotifiersFn, nil
 	}
 
-	cw, err = newWatcher(*configPath, gen)
+	cw, err = newWatcher(*configPath, AlertURLGeneratorFn)
 	if err != nil {
 		return nil, fmt.Errorf("failed to init config watcher: %w", err)
 	}

app/vmalert/notifier/init_test.go

@@ -1,6 +1,8 @@
 package notifier
 
 import (
+	"fmt"
+	"net/url"
 	"testing"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
@@ -12,7 +14,7 @@ func TestInit(t *testing.T) {
 
 	*addrs = flagutil.ArrayString{"127.0.0.1", "127.0.0.2"}
 
-	fn, err := Init(nil, nil, "")
+	fn, err := Init(nil, "")
 	if err != nil {
 		t.Fatalf("%s", err)
 	}
@@ -52,7 +54,7 @@ func TestInitNegative(t *testing.T) {
 		*configPath = path
 		*addrs = flagutil.ArrayString{addr}
 		*blackHole = bh
-		if _, err := Init(nil, nil, ""); err == nil {
+		if _, err := Init(nil, ""); err == nil {
 			t.Fatalf("expected to get error; got nil instead")
 		}
 	}
@@ -69,7 +71,7 @@ func TestBlackHole(t *testing.T) {
 
 	*blackHole = true
 
-	fn, err := Init(nil, nil, "")
+	fn, err := Init(nil, "")
 	if err != nil {
 		t.Fatalf("%s", err)
 	}
@@ -91,3 +93,30 @@ func TestBlackHole(t *testing.T) {
 		t.Fatalf("expected to get \"blackhole\"; got %q instead", nf1.Addr())
 	}
 }
+
+func TestGetAlertURLGenerator(t *testing.T) {
+	oldAlertURLGeneratorFn := AlertURLGeneratorFn
+	defer func() { AlertURLGeneratorFn = oldAlertURLGeneratorFn }()
+
+	testAlert := Alert{GroupID: 42, ID: 2, Value: 4, Labels: map[string]string{"tenant": "baz"}}
+	u, _ := url.Parse("https://victoriametrics.com/path")
+	err := InitAlertURLGeneratorFn(u, "", false)
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	exp := fmt.Sprintf("https://victoriametrics.com/path/vmalert/alert?%s=42&%s=2", "group_id", "alert_id")
+	if exp != AlertURLGeneratorFn(testAlert) {
+		t.Fatalf("unexpected url want %s, got %s", exp, AlertURLGeneratorFn(testAlert))
+	}
+	err = InitAlertURLGeneratorFn(nil, "foo?{{invalid}}", true)
+	if err == nil {
+		t.Fatalf("expected template validation error got nil")
+	}
+	err = InitAlertURLGeneratorFn(u, "foo?query={{$value}}&ds={{ $labels.tenant }}", true)
+	if err != nil {
+		t.Fatalf("unexpected error %s", err)
+	}
+	if exp := "https://victoriametrics.com/path/foo?query=4&ds=baz"; exp != AlertURLGeneratorFn(testAlert) {
+		t.Fatalf("unexpected url want %s, got %s", exp, AlertURLGeneratorFn(testAlert))
+	}
+}

app/vmalert/notifier/notifier.go

@@ -10,6 +10,8 @@ type Notifier interface {
 	Send(ctx context.Context, alerts []Alert, notifierHeaders map[string]string) error
 	// Addr returns address where alerts are sent.
 	Addr() string
+	// LastError returns error, that occured during last attempt to send data
+	LastError() string
 	// Close is a destructor for the Notifier
 	Close()
 }

app/vmalert/notifier/notifier_blackhole.go

@@ -25,6 +25,11 @@ func (bh *blackHoleNotifier) Close() {
 	bh.metrics.close()
 }
 
+// LastError return last notifier's error
+func (bh *blackHoleNotifier) LastError() string {
+	return ""
+}
+
 // newBlackHoleNotifier creates a new blackHoleNotifier
 func newBlackHoleNotifier() *blackHoleNotifier {
 	address := "blackhole"

app/vmalert/notifier/web.go

@@ -0,0 +1,19 @@
+package notifier
+
+// ApiNotifier represents a Notifier configuration for WEB view
+type ApiNotifier struct {
+	// Kind is a Notifier type
+	Kind TargetType `json:"kind"`
+	// Targets is a list of Notifier targets
+	Targets []*ApiTarget `json:"targets"`
+}
+
+// ApiTarget represents a specific Notifier target for WEB view
+type ApiTarget struct {
+	// Address is a URL for sending notifications
+	Address string `json:"address"`
+	// Labels is a list of labels to add to each sent notification
+	Labels map[string]string `json:"labels"`
+	// LastError contains the error faced while sending to notifier.
+	LastError string `json:"lastError"`
+}

app/vmalert/rule/alerting.go

@@ -187,6 +187,54 @@ func (ar *AlertingRule) ID() uint64 {
 	return ar.RuleID
 }
 
+// ToAPI returns ApiRule representation of ar
+func (ar *AlertingRule) ToAPI() ApiRule {
+	state := ar.state
+	lastState := state.getLast()
+	r := ApiRule{
+		Type:              TypeAlerting,
+		DatasourceType:    ar.Type.String(),
+		Name:              ar.Name,
+		Query:             ar.Expr,
+		Duration:          ar.For.Seconds(),
+		KeepFiringFor:     ar.KeepFiringFor.Seconds(),
+		Labels:            ar.Labels,
+		Annotations:       ar.Annotations,
+		LastEvaluation:    lastState.Time,
+		EvaluationTime:    lastState.Duration.Seconds(),
+		Health:            "ok",
+		State:             "inactive",
+		Alerts:            ar.AlertsToAPI(),
+		LastSamples:       lastState.Samples,
+		LastSeriesFetched: lastState.SeriesFetched,
+		MaxUpdates:        state.size(),
+		Updates:           state.getAll(),
+		Debug:             ar.Debug,
+
+		// encode as strings to avoid rounding in JSON
+		ID:        fmt.Sprintf("%d", ar.ID()),
+		GroupID:   fmt.Sprintf("%d", ar.GroupID),
+		GroupName: ar.GroupName,
+		File:      ar.File,
+	}
+	if lastState.Err != nil {
+		r.LastError = lastState.Err.Error()
+		r.Health = "err"
+	}
+	// satisfy apiRule.State logic
+	if len(r.Alerts) > 0 {
+		r.State = notifier.StatePending.String()
+		stateFiring := notifier.StateFiring.String()
+		for _, a := range r.Alerts {
+			if a.State == stateFiring {
+				r.State = stateFiring
+				break
+			}
+		}
+	}
+	return r
+}
+
 // GetAlerts returns active alerts of rule
 func (ar *AlertingRule) GetAlerts() []*notifier.Alert {
 	ar.alertsMu.RLock()
@@ -341,7 +389,7 @@ func (ar *AlertingRule) execRange(ctx context.Context, start, end time.Time) ([]
 		return []datasource.Metric{{Timestamps: []int64{0}, Values: []float64{math.NaN()}}}, nil
 	}
 	for _, s := range res.Data {
-		ls, err := ar.expandLabelTemplates(s)
+		ls, err := ar.expandLabelTemplates(s, qFn)
 		if err != nil {
 			return nil, err
 		}
@@ -434,7 +482,7 @@ func (ar *AlertingRule) exec(ctx context.Context, ts time.Time, limit int) ([]pr
 	expandedLabels := make([]*labelSet, len(res.Data))
 	expandedAnnotations := make([]map[string]string, len(res.Data))
 	for i, m := range res.Data {
-		ls, err := ar.expandLabelTemplates(m)
+		ls, err := ar.expandLabelTemplates(m, qFn)
 		if err != nil {
 			curState.Err = err
 			return nil, curState.Err
@@ -556,10 +604,7 @@ func (ar *AlertingRule) exec(ctx context.Context, ts time.Time, limit int) ([]pr
 	return append(tss, ar.toTimeSeries(ts.Unix())...), nil
 }
 
-func (ar *AlertingRule) expandLabelTemplates(m datasource.Metric) (*labelSet, error) {
-	qFn := func(_ string) ([]datasource.Metric, error) {
-		return nil, fmt.Errorf("`query` template isn't supported in rule label")
-	}
+func (ar *AlertingRule) expandLabelTemplates(m datasource.Metric, qFn templates.QueryFn) (*labelSet, error) {
 	ls, err := ar.toLabels(m, qFn)
 	if err != nil {
 		return nil, fmt.Errorf("failed to expand label templates: %s", err)

app/vmalert/rule/alerting_test.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 	"sync"
 	"testing"
+	"testing/synctest"
 	"time"
 
 	"github.com/VictoriaMetrics/metrics"
@@ -1429,3 +1430,142 @@ func TestAlertingRuleExec_Partial(t *testing.T) {
 		t.Fatalf("unexpected error: %s", err)
 	}
 }
+
+func TestAlertingRule_QueryTemplateInLabels(t *testing.T) {
+	fq := &datasource.FakeQuerier{}
+	fakeGroup := Group{
+		Name: "TestQueryTemplateInLabels",
+	}
+
+	ar := &AlertingRule{
+		Name: "test_alert",
+		Labels: map[string]string{
+			"suppress_for_mass_alert": `{{ if (printf "ALERTS{alertname='SomeAlert', alertstate='firing', device='%s'} == 1" $labels.device | query) }}true{{ else }}false{{ end }}`,
+		},
+		Annotations: map[string]string{
+			"summary": "Test alert with query template in labels",
+		},
+		alerts: make(map[uint64]*notifier.Alert),
+	}
+	ar.GroupID = fakeGroup.GetID()
+	ar.q = fq
+	ar.state = &ruleState{
+		entries: make([]StateEntry, 10),
+	}
+
+	// Add a metric that should trigger the alert
+	fq.Add(metricWithValueAndLabels(t, 1, "device", "sda1"))
+
+	ts := time.Now()
+	_, err := ar.exec(context.TODO(), ts, 0)
+	if err != nil {
+		t.Fatalf("unexpected error with query template in labels: %s", err)
+	}
+
+	// Verify that the alert was created and the query template was executed
+	if len(ar.alerts) != 1 {
+		t.Fatalf("expected 1 alert, got %d", len(ar.alerts))
+	}
+
+	alert := ar.GetAlerts()[0]
+	suppressLabel, exists := alert.Labels["suppress_for_mass_alert"]
+	if !exists {
+		t.Fatalf("expected 'suppress_for_mass_alert' label to exist")
+	}
+	// The query template should have been executed (even if it returns false due to mock data)
+	if suppressLabel != "true" && suppressLabel != "false" {
+		t.Fatalf("expected 'suppress_for_mass_alert' label to be 'true' or 'false', got '%s'", suppressLabel)
+	}
+}
+
+// TestAlertingRule_ActiveAtPreservedInAnnotations ensures that the fix for
+// https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9543 is preserved
+// while allowing query templates in labels (https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9783)
+func TestAlertingRule_ActiveAtPreservedInAnnotations(t *testing.T) {
+	// wrap into synctest because of time manipulations
+	synctest.Test(t, func(t *testing.T) {
+		fq := &datasource.FakeQuerier{}
+
+		ar := &AlertingRule{
+			Name: "TestActiveAtPreservation",
+			Labels: map[string]string{
+				"test_query_in_label": `{{ "static_value" }}`,
+			},
+			Annotations: map[string]string{
+				"description": "Alert active since {{ $activeAt }}",
+			},
+			alerts: make(map[uint64]*notifier.Alert),
+			q:      fq,
+			state: &ruleState{
+				entries: make([]StateEntry, 10),
+			},
+		}
+
+		// Mock query result - return empty result to make suppress_for_mass_alert = false
+		// (no need to add anything to fq for empty result)
+
+		// Add a metric that should trigger the alert
+		fq.Add(metricWithValueAndLabels(t, 1, "instance", "server1"))
+
+		// First execution - creates new alert
+		ts1 := time.Now()
+		_, err := ar.exec(context.TODO(), ts1, 0)
+		if err != nil {
+			t.Fatalf("unexpected error on first exec: %s", err)
+		}
+
+		if len(ar.alerts) != 1 {
+			t.Fatalf("expected 1 alert, got %d", len(ar.alerts))
+		}
+
+		firstAlert := ar.GetAlerts()[0]
+		// Verify first execution: activeAt should be ts1 and annotation should reflect it
+		if !firstAlert.ActiveAt.Equal(ts1) {
+			t.Fatalf("expected activeAt to be %v, got %v", ts1, firstAlert.ActiveAt)
+		}
+
+		// Extract time from annotation (format will be like "Alert active since 2025-09-30 08:55:13.638551611 -0400 EDT m=+0.002928464")
+		expectedTimeStr := ts1.Format("2006-01-02 15:04:05")
+		if !strings.Contains(firstAlert.Annotations["description"], expectedTimeStr) {
+			t.Fatalf("first exec annotation should contain time %s, got: %s", expectedTimeStr, firstAlert.Annotations["description"])
+		}
+
+		// Second execution - should preserve activeAt in annotation
+
+		// Ensure different timestamp with different seconds
+		// sleep is non-blocking thanks to synctest
+		time.Sleep(2 * time.Second)
+		ts2 := time.Now()
+		_, err = ar.exec(context.TODO(), ts2, 0)
+		if err != nil {
+			t.Fatalf("unexpected error on second exec: %s", err)
+		}
+
+		// Get the alert again (should be the same alert)
+		if len(ar.alerts) != 1 {
+			t.Fatalf("expected 1 alert, got %d", len(ar.alerts))
+		}
+		secondAlert := ar.GetAlerts()[0]
+
+		// Critical test: activeAt should still be ts1, not ts2
+		if !secondAlert.ActiveAt.Equal(ts1) {
+			t.Fatalf("activeAt should be preserved as %v, but got %v", ts1, secondAlert.ActiveAt)
+		}
+
+		// Critical test: annotation should still contain ts1 time, not ts2
+		if !strings.Contains(secondAlert.Annotations["description"], expectedTimeStr) {
+			t.Fatalf("second exec annotation should still contain original time %s, got: %s", expectedTimeStr, secondAlert.Annotations["description"])
+		}
+
+		// Additional verification: annotation should NOT contain ts2 time
+		ts2TimeStr := ts2.Format("2006-01-02 15:04:05")
+		if strings.Contains(secondAlert.Annotations["description"], ts2TimeStr) {
+			t.Fatalf("annotation should NOT contain new eval time %s, got: %s", ts2TimeStr, secondAlert.Annotations["description"])
+		}
+
+		// Verify query template in labels still works (this would fail if query templates were broken)
+		if firstAlert.Labels["test_query_in_label"] != "static_value" {
+			t.Fatalf("expected test_query_in_label=static_value, got %s", firstAlert.Labels["test_query_in_label"])
+		}
+	})
+}

app/vmalert/rule/group.go

@@ -2,7 +2,6 @@ package rule
 
 import (
 	"context"
-	"encoding/json"
 	"errors"
 	"flag"
 	"fmt"
@@ -25,6 +24,10 @@ import (
 )
 
 var (
+	ruleResultsLimit = flag.Int("rule.resultsLimit", 0, "Limits the number of alerts or recording results a single rule can produce. "+
+		"Can be overridden by the limit option under group if specified. "+
+		"If exceeded, the rule will be marked with an error and all its results will be discarded. "+
+		"0 means no limit.")
 	ruleUpdateEntriesLimit = flag.Int("rule.updateEntriesLimit", 20, "Defines the max number of rule's state updates stored in-memory. "+
 		"Rule's updates are available on rule's Details page and are used for debugging purposes. The number of stored updates can be overridden per rule via update_entries_limit param.")
 	resendDelay        = flag.Duration("rule.resendDelay", 0, "MiniMum amount of time to wait before resending an alert to notifier.")
@@ -112,7 +115,6 @@ func NewGroup(cfg config.Group, qb datasource.QuerierBuilder, defaultInterval ti
 		Name:            cfg.Name,
 		File:            cfg.File,
 		Interval:        cfg.Interval.Duration(),
-		Limit:           cfg.Limit,
 		Concurrency:     cfg.Concurrency,
 		checksum:        cfg.Checksum,
 		Params:          cfg.Params,
@@ -129,6 +131,11 @@ func NewGroup(cfg config.Group, qb datasource.QuerierBuilder, defaultInterval ti
 	if g.Interval == 0 {
 		g.Interval = defaultInterval
 	}
+	if cfg.Limit != nil {
+		g.Limit = *cfg.Limit
+	} else {
+		g.Limit = *ruleResultsLimit
+	}
 	if g.Concurrency < 1 {
 		g.Concurrency = 1
 	}
@@ -289,7 +296,7 @@ func (g *Group) InterruptEval() {
 	}
 }
 
-// Close stops the group and it's rules, unregisters group metrics
+// Close stops the group and its rules, unregisters group metrics
 func (g *Group) Close() {
 	if g.doneCh == nil {
 		return
@@ -298,10 +305,6 @@ func (g *Group) Close() {
 	g.InterruptEval()
 	<-g.finishedCh
 
-	g.closeGroupMetrics()
-}
-
-func (g *Group) closeGroupMetrics() {
 	metrics.UnregisterSet(g.metrics.set, true)
 }
 
@@ -331,7 +334,7 @@ func (g *Group) Start(ctx context.Context, nts func() []notifier.Notifier, rw re
 	defer func() { close(g.finishedCh) }()
 	evalTS := time.Now()
 	// sleep random duration to spread group rules evaluation
-	// over time in order to reduce load on datasource.
+	// over time to reduce the load on datasource.
 	if !SkipRandSleepOnGroupStart {
 		sleepBeforeStart := delayBeforeStart(evalTS, g.GetID(), g.Interval, g.EvalOffset)
 		g.infof("will start in %v", sleepBeforeStart)
@@ -472,18 +475,6 @@ func (g *Group) UpdateWith(newGroup *Group) {
 	g.updateCh <- newGroup
 }
 
-// DeepCopy returns a deep copy of group
-func (g *Group) DeepCopy() *Group {
-	g.mu.RLock()
-	data, _ := json.Marshal(g)
-	g.mu.RUnlock()
-	newG := Group{}
-	_ = json.Unmarshal(data, &newG)
-	newG.Rules = g.Rules
-	newG.id = g.id
-	return &newG
-}
-
 // if offset is specified, delayBeforeStart returns a duration to help aligning timestamp with offset;
 // otherwise, it returns a random duration between [0..interval] based on group key.
 func delayBeforeStart(ts time.Time, key uint64, interval time.Duration, offset *time.Duration) time.Duration {

app/vmalert/rule/recording.go

@@ -81,6 +81,37 @@ func (rr *RecordingRule) ID() uint64 {
 	return rr.RuleID
 }
 
+// ToAPI returns ApiRule representation of rr
+func (rr *RecordingRule) ToAPI() ApiRule {
+	state := rr.state
+	lastState := state.getLast()
+	r := ApiRule{
+		Type:              TypeRecording,
+		DatasourceType:    rr.Type.String(),
+		Name:              rr.Name,
+		Query:             rr.Expr,
+		Labels:            rr.Labels,
+		LastEvaluation:    lastState.Time,
+		EvaluationTime:    lastState.Duration.Seconds(),
+		Health:            "ok",
+		LastSamples:       lastState.Samples,
+		LastSeriesFetched: lastState.SeriesFetched,
+		MaxUpdates:        state.size(),
+		Updates:           state.getAll(),
+
+		// encode as strings to avoid rounding
+		ID:        fmt.Sprintf("%d", rr.ID()),
+		GroupID:   fmt.Sprintf("%d", rr.GroupID),
+		GroupName: rr.GroupName,
+		File:      rr.File,
+	}
+	if lastState.Err != nil {
+		r.LastError = lastState.Err.Error()
+		r.Health = "err"
+	}
+	return r
+}
+
 // NewRecordingRule creates a new RecordingRule
 func NewRecordingRule(qb datasource.QuerierBuilder, group *Group, cfg config.Rule) *RecordingRule {
 	debug := group.Debug

app/vmalert/rule/rule.go

@@ -21,6 +21,8 @@ type Rule interface {
 	// ID returns unique ID that may be used for
 	// identifying this Rule among others.
 	ID() uint64
+	// ToAPI returns ApiRule representation of Rule
+	ToAPI() ApiRule
 	// exec executes the rule with given context at the given timestamp and limit.
 	// returns an err if number of resulting time series exceeds the limit.
 	exec(ctx context.Context, ts time.Time, limit int) ([]prompb.TimeSeries, error)
@@ -68,39 +70,6 @@ type StateEntry struct {
 	Curl string `json:"curl"`
 }
 
-// GetLastEntry returns latest stateEntry of rule
-func GetLastEntry(r Rule) StateEntry {
-	if rule, ok := r.(*AlertingRule); ok {
-		return rule.state.getLast()
-	}
-	if rule, ok := r.(*RecordingRule); ok {
-		return rule.state.getLast()
-	}
-	return StateEntry{}
-}
-
-// GetRuleStateSize returns size of rule stateEntry
-func GetRuleStateSize(r Rule) int {
-	if rule, ok := r.(*AlertingRule); ok {
-		return rule.state.size()
-	}
-	if rule, ok := r.(*RecordingRule); ok {
-		return rule.state.size()
-	}
-	return 0
-}
-
-// GetAllRuleState returns rule entire stateEntries
-func GetAllRuleState(r Rule) []StateEntry {
-	if rule, ok := r.(*AlertingRule); ok {
-		return rule.state.getAll()
-	}
-	if rule, ok := r.(*RecordingRule); ok {
-		return rule.state.getAll()
-	}
-	return []StateEntry{}
-}
-
 func (s *ruleState) size() int {
 	s.RLock()
 	defer s.RUnlock()

app/vmalert/rule/web.go

@@ -1,4 +1,4 @@
-package main
+package rule
 
 import (
 	"fmt"
@@ -8,79 +8,28 @@ import (
 	"time"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
-	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/rule"
 )
 
 const (
 	// ParamGroupID is group id key in url parameter
-	paramGroupID = "group_id"
+	ParamGroupID = "group_id"
 	// ParamAlertID is alert id key in url parameter
-	paramAlertID = "alert_id"
+	ParamAlertID = "alert_id"
 	// ParamRuleID is rule id key in url parameter
-	paramRuleID = "rule_id"
+	ParamRuleID = "rule_id"
+
+	// TypeRecording is a RecordingRule type
+	TypeRecording = "recording"
+	// TypeAlerting is an AlertingRule type
+	TypeAlerting = "alerting"
 )
 
-type apiNotifier struct {
-	Kind    string       `json:"kind"`
-	Targets []*apiTarget `json:"targets"`
-}
-
-type apiTarget struct {
-	Address string            `json:"address"`
-	Labels  map[string]string `json:"labels"`
-}
-
-// apiAlert represents a notifier.AlertingRule state
-// for WEB view
-// https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md#get-apiv1rules
-type apiAlert struct {
-	State       string            `json:"state"`
-	Name        string            `json:"name"`
-	Value       string            `json:"value"`
-	Labels      map[string]string `json:"labels,omitempty"`
-	Annotations map[string]string `json:"annotations"`
-	ActiveAt    time.Time         `json:"activeAt"`
-
-	// Additional fields
-
-	// ID is an unique Alert's ID within a group
-	ID string `json:"id"`
-	// RuleID is an unique Rule's ID within a group
-	RuleID string `json:"rule_id"`
-	// GroupID is an unique Group's ID
-	GroupID string `json:"group_id"`
-	// Expression contains the PromQL/MetricsQL expression
-	// for Rule's evaluation
-	Expression string `json:"expression"`
-	// SourceLink contains a link to a system which should show
-	// why Alert was generated
-	SourceLink string `json:"source"`
-	// Restored shows whether Alert's state was restored on restart
-	Restored bool `json:"restored"`
-	// Stabilizing shows when firing state is kept because of
-	// `keep_firing_for` instead of real alert
-	Stabilizing bool `json:"stabilizing"`
-}
-
-// WebLink returns a link to the alert which can be used in UI.
-func (aa *apiAlert) WebLink() string {
-	return fmt.Sprintf("alert?%s=%s&%s=%s",
-		paramGroupID, aa.GroupID, paramAlertID, aa.ID)
-}
-
-// APILink returns a link to the alert's JSON representation.
-func (aa *apiAlert) APILink() string {
-	return fmt.Sprintf("api/v1/alert?%s=%s&%s=%s",
-		paramGroupID, aa.GroupID, paramAlertID, aa.ID)
-}
-
-// apiGroup represents Group for web view
-// https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md#get-apiv1rules
-type apiGroup struct {
+// ApiGroup represents a Group for web view
+type ApiGroup struct {
 	// Name is the group name as present in the config
 	Name string `json:"name"`
 	// Rules contains both recording and alerting rules
-	Rules []apiRule `json:"rules"`
+	Rules []ApiRule `json:"rules"`
 	// Interval is the Group's evaluation interval in float seconds as present in the file.
 	Interval float64 `json:"interval"`
 	// LastEvaluation is the timestamp of the last time the Group was executed
@@ -116,15 +65,20 @@ type apiGroup struct {
 	NoMatch int
 }
 
-// groupAlerts represents a group of alerts for WEB view
-type groupAlerts struct {
-	Group  *apiGroup
-	Alerts []*apiAlert
+// APILink returns a link to the group's JSON representation.
+func (ag *ApiGroup) APILink() string {
+	return fmt.Sprintf("api/v1/group?%s=%s", ParamGroupID, ag.ID)
 }
 
-// apiRule represents a Rule for web view
+// GroupAlerts represents a Group with its Alerts for web view
+type GroupAlerts struct {
+	Group  *ApiGroup
+	Alerts []*ApiAlert
+}
+
+// ApiRule represents a Rule for web view
 // see https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md#get-apiv1rules
-type apiRule struct {
+type ApiRule struct {
 	// State must be one of these under following scenarios
 	//  "pending": at least 1 alert in the rule in pending state and no other alert in firing ruleState.
 	//  "firing": at least 1 alert in the rule in firing state.
@@ -146,7 +100,7 @@ type apiRule struct {
 	// LastEvaluation is the timestamp of the last time the rule was executed
 	LastEvaluation time.Time `json:"lastEvaluation"`
 	// Alerts  is the list of all the alerts in this rule that are currently pending or firing
-	Alerts []*apiAlert `json:"alerts,omitempty"`
+	Alerts []*ApiAlert `json:"alerts,omitempty"`
 	// Health is the health of rule evaluation.
 	// It MUST be one of "ok", "err", "unknown"
 	Health string `json:"health"`
@@ -177,143 +131,96 @@ type apiRule struct {
 	// MaxUpdates is the max number of recorded ruleStateEntry objects
 	MaxUpdates int `json:"max_updates_entries"`
 	// Updates contains the ordered list of recorded ruleStateEntry objects
-	Updates []rule.StateEntry `json:"-"`
+	Updates []StateEntry `json:"-"`
 }
 
-// apiRuleWithUpdates represents apiRule but with extra fields for marshalling
-type apiRuleWithUpdates struct {
-	apiRule
-	// Updates contains the ordered list of recorded ruleStateEntry objects
-	StateUpdates []rule.StateEntry `json:"updates,omitempty"`
-}
+// ApiAlert represents a notifier.AlertingRule state
+// for WEB view
+// https://github.com/prometheus/compliance/blob/main/alert_generator/specification.md#get-apiv1rules
+type ApiAlert struct {
+	State       string            `json:"state"`
+	Name        string            `json:"name"`
+	Value       string            `json:"value"`
+	Labels      map[string]string `json:"labels,omitempty"`
+	Annotations map[string]string `json:"annotations"`
+	ActiveAt    time.Time         `json:"activeAt"`
 
-// APILink returns a link to the rule's JSON representation.
-func (ar apiRule) APILink() string {
-	return fmt.Sprintf("api/v1/rule?%s=%s&%s=%s",
-		paramGroupID, ar.GroupID, paramRuleID, ar.ID)
+	// Additional fields
+
+	// ID is an unique Alert's ID within a group
+	ID string `json:"id"`
+	// RuleID is an unique Rule's ID within a group
+	RuleID string `json:"rule_id"`
+	// GroupID is an unique Group's ID
+	GroupID string `json:"group_id"`
+	// Expression contains the PromQL/MetricsQL expression
+	// for Rule's evaluation
+	Expression string `json:"expression"`
+	// SourceLink contains a link to a system which should show
+	// why Alert was generated
+	SourceLink string `json:"source"`
+	// Restored shows whether Alert's state was restored on restart
+	Restored bool `json:"restored"`
+	// Stabilizing shows when firing state is kept because of
+	// `keep_firing_for` instead of real alert
+	Stabilizing bool `json:"stabilizing"`
 }
 
 // WebLink returns a link to the alert which can be used in UI.
-func (ar apiRule) WebLink() string {
+func (aa *ApiAlert) WebLink() string {
+	return fmt.Sprintf("alert?%s=%s&%s=%s",
+		ParamGroupID, aa.GroupID, ParamAlertID, aa.ID)
+}
+
+// APILink returns a link to the alert's JSON representation.
+func (aa *ApiAlert) APILink() string {
+	return fmt.Sprintf("api/v1/alert?%s=%s&%s=%s",
+		ParamGroupID, aa.GroupID, ParamAlertID, aa.ID)
+}
+
+// ApiRuleWithUpdates represents ApiRule but with extra fields for marshalling
+type ApiRuleWithUpdates struct {
+	ApiRule
+	// Updates contains the ordered list of recorded ruleStateEntry objects
+	StateUpdates []StateEntry `json:"updates,omitempty"`
+}
+
+// APILink returns a link to the rule's JSON representation.
+func (ar ApiRule) APILink() string {
+	return fmt.Sprintf("api/v1/rule?%s=%s&%s=%s",
+		ParamGroupID, ar.GroupID, ParamRuleID, ar.ID)
+}
+
+// WebLink returns a link to the alert which can be used in UI.
+func (ar ApiRule) WebLink() string {
 	return fmt.Sprintf("rule?%s=%s&%s=%s",
-		paramGroupID, ar.GroupID, paramRuleID, ar.ID)
+		ParamGroupID, ar.GroupID, ParamRuleID, ar.ID)
 }
 
-func ruleToAPI(r any) apiRule {
-	if ar, ok := r.(*rule.AlertingRule); ok {
-		return alertingToAPI(ar)
-	}
-	if rr, ok := r.(*rule.RecordingRule); ok {
-		return recordingToAPI(rr)
-	}
-	return apiRule{}
-}
-
-const (
-	ruleTypeRecording = "recording"
-	ruleTypeAlerting  = "alerting"
-)
-
-func recordingToAPI(rr *rule.RecordingRule) apiRule {
-	lastState := rule.GetLastEntry(rr)
-	r := apiRule{
-		Type:              ruleTypeRecording,
-		DatasourceType:    rr.Type.String(),
-		Name:              rr.Name,
-		Query:             rr.Expr,
-		Labels:            rr.Labels,
-		LastEvaluation:    lastState.Time,
-		EvaluationTime:    lastState.Duration.Seconds(),
-		Health:            "ok",
-		LastSamples:       lastState.Samples,
-		LastSeriesFetched: lastState.SeriesFetched,
-		MaxUpdates:        rule.GetRuleStateSize(rr),
-		Updates:           rule.GetAllRuleState(rr),
-
-		// encode as strings to avoid rounding
-		ID:        fmt.Sprintf("%d", rr.ID()),
-		GroupID:   fmt.Sprintf("%d", rr.GroupID),
-		GroupName: rr.GroupName,
-		File:      rr.File,
-	}
-	if lastState.Err != nil {
-		r.LastError = lastState.Err.Error()
-		r.Health = "err"
-	}
-	return r
-}
-
-// alertingToAPI returns Rule representation in form of apiRule
-func alertingToAPI(ar *rule.AlertingRule) apiRule {
-	lastState := rule.GetLastEntry(ar)
-	r := apiRule{
-		Type:              ruleTypeAlerting,
-		DatasourceType:    ar.Type.String(),
-		Name:              ar.Name,
-		Query:             ar.Expr,
-		Duration:          ar.For.Seconds(),
-		KeepFiringFor:     ar.KeepFiringFor.Seconds(),
-		Labels:            ar.Labels,
-		Annotations:       ar.Annotations,
-		LastEvaluation:    lastState.Time,
-		EvaluationTime:    lastState.Duration.Seconds(),
-		Health:            "ok",
-		State:             "inactive",
-		Alerts:            ruleToAPIAlert(ar),
-		LastSamples:       lastState.Samples,
-		LastSeriesFetched: lastState.SeriesFetched,
-		MaxUpdates:        rule.GetRuleStateSize(ar),
-		Updates:           rule.GetAllRuleState(ar),
-		Debug:             ar.Debug,
-
-		// encode as strings to avoid rounding in JSON
-		ID:        fmt.Sprintf("%d", ar.ID()),
-		GroupID:   fmt.Sprintf("%d", ar.GroupID),
-		GroupName: ar.GroupName,
-		File:      ar.File,
-	}
-	if lastState.Err != nil {
-		r.LastError = lastState.Err.Error()
-		r.Health = "err"
-	}
-	// satisfy apiRule.State logic
-	if len(r.Alerts) > 0 {
-		r.State = notifier.StatePending.String()
-		stateFiring := notifier.StateFiring.String()
-		for _, a := range r.Alerts {
-			if a.State == stateFiring {
-				r.State = stateFiring
-				break
-			}
-		}
-	}
-	return r
-}
-
-// ruleToAPIAlert generates list of apiAlert objects from existing alerts
-func ruleToAPIAlert(ar *rule.AlertingRule) []*apiAlert {
-	var alerts []*apiAlert
+// AlertsToAPI returns list of ApiAlert objects from existing alerts
+func (ar *AlertingRule) AlertsToAPI() []*ApiAlert {
+	var alerts []*ApiAlert
 	for _, a := range ar.GetAlerts() {
 		if a.State == notifier.StateInactive {
 			continue
 		}
-		alerts = append(alerts, newAlertAPI(ar, a))
+		alerts = append(alerts, NewAlertAPI(ar, a))
 	}
 	return alerts
 }
 
-// alertToAPI generates apiAlert object from alert by its id(hash)
-func alertToAPI(ar *rule.AlertingRule, id uint64) *apiAlert {
+// AlertToAPI generates apiAlert object from alert by its id(hash)
+func (ar *AlertingRule) AlertToAPI(id uint64) *ApiAlert {
 	a := ar.GetAlert(id)
 	if a == nil {
 		return nil
 	}
-	return newAlertAPI(ar, a)
+	return NewAlertAPI(ar, a)
 }
 
 // NewAlertAPI creates apiAlert for notifier.Alert
-func newAlertAPI(ar *rule.AlertingRule, a *notifier.Alert) *apiAlert {
-	aa := &apiAlert{
+func NewAlertAPI(ar *AlertingRule, a *notifier.Alert) *ApiAlert {
+	aa := &ApiAlert{
 		// encode as strings to avoid rounding
 		ID:      fmt.Sprintf("%d", a.ID),
 		GroupID: fmt.Sprintf("%d", a.GroupID),
@@ -328,8 +235,8 @@ func newAlertAPI(ar *rule.AlertingRule, a *notifier.Alert) *apiAlert {
 		Restored:    a.Restored,
 		Value:       strconv.FormatFloat(a.Value, 'f', -1, 32),
 	}
-	if alertURLGeneratorFn != nil {
-		aa.SourceLink = alertURLGeneratorFn(*a)
+	if notifier.AlertURLGeneratorFn != nil {
+		aa.SourceLink = notifier.AlertURLGeneratorFn(*a)
 	}
 	if a.State == notifier.StateFiring && !a.KeepFiringSince.IsZero() {
 		aa.Stabilizing = true
@@ -337,9 +244,11 @@ func newAlertAPI(ar *rule.AlertingRule, a *notifier.Alert) *apiAlert {
 	return aa
 }
 
-func groupToAPI(g *rule.Group) *apiGroup {
-	g = g.DeepCopy()
-	ag := apiGroup{
+// ToAPI returns ApiGroup representation of g
+func (g *Group) ToAPI() *ApiGroup {
+	g.mu.RLock()
+	defer g.mu.RUnlock()
+	ag := ApiGroup{
 		// encode as string to avoid rounding
 		ID:              strconv.FormatUint(g.GetID(), 10),
 		Name:            g.Name,
@@ -359,9 +268,9 @@ func groupToAPI(g *rule.Group) *apiGroup {
 	if g.EvalDelay != nil {
 		ag.EvalDelay = g.EvalDelay.Seconds()
 	}
-	ag.Rules = make([]apiRule, 0)
+	ag.Rules = make([]ApiRule, 0)
 	for _, r := range g.Rules {
-		ag.Rules = append(ag.Rules, ruleToAPI(r))
+		ag.Rules = append(ag.Rules, r.ToAPI())
 	}
 	return &ag
 }

app/vmalert/rule/web_test.go

@@ -1,4 +1,4 @@
-package main
+package rule
 
 import (
 	"fmt"
@@ -8,7 +8,6 @@ import (
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/config"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource"
-	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/rule"
 )
 
 func TestRecordingToApi(t *testing.T) {
@@ -17,7 +16,7 @@ func TestRecordingToApi(t *testing.T) {
 		Values: []float64{1}, Timestamps: []int64{0},
 	})
 	entriesLimit := 44
-	g := rule.NewGroup(config.Group{
+	g := NewGroup(config.Group{
 		Name:        "group",
 		File:        "rules.yaml",
 		Concurrency: 1,
@@ -31,24 +30,24 @@ func TestRecordingToApi(t *testing.T) {
 			},
 		},
 	}, fq, 1*time.Minute, nil)
-	rr := g.Rules[0].(*rule.RecordingRule)
+	rr := g.Rules[0].(*RecordingRule)
 
-	expectedRes := apiRule{
+	expectedRes := ApiRule{
 		Name:           "record_name",
 		Query:          "up",
 		Labels:         map[string]string{"label": "value"},
 		Health:         "ok",
-		Type:           ruleTypeRecording,
+		Type:           TypeRecording,
 		DatasourceType: "prometheus",
 		ID:             "1248",
 		GroupID:        fmt.Sprintf("%d", g.CreateID()),
 		GroupName:      "group",
 		File:           "rules.yaml",
 		MaxUpdates:     44,
-		Updates:        make([]rule.StateEntry, 0),
+		Updates:        make([]StateEntry, 0),
 	}
 
-	res := recordingToAPI(rr)
+	res := rr.ToAPI()
 
 	if !reflect.DeepEqual(res, expectedRes) {
 		t.Fatalf("expected to have: \n%v;\ngot: \n%v", expectedRes, res)

app/vmalert/web.go

@@ -29,7 +29,9 @@ var (
 		{"api/v1/rules", "list all loaded groups and rules"},
 		{"api/v1/alerts", "list all active alerts"},
 		{"api/v1/notifiers", "list all notifiers"},
-		{fmt.Sprintf("api/v1/alert?%s=<int>&%s=<int>", paramGroupID, paramAlertID), "get alert status by group and alert ID"},
+		{fmt.Sprintf("api/v1/alert?%s=<int>&%s=<int>", rule.ParamGroupID, rule.ParamAlertID), "get alert status by group and alert ID"},
+		{fmt.Sprintf("api/v1/rule?%s=<int>&%s=<int>", rule.ParamGroupID, rule.ParamRuleID), "get rule status by group and rule ID"},
+		{fmt.Sprintf("api/v1/group?%s=<int>", rule.ParamGroupID), "get group status by group ID"},
 	}
 	systemLinks = [][2]string{
 		{"vmalert/groups", "UI"},
@@ -45,8 +47,8 @@ var (
 		{Name: "Docs", URL: "https://docs.victoriametrics.com/victoriametrics/vmalert/"},
 	}
 	ruleTypeMap = map[string]string{
-		"alert":  ruleTypeAlerting,
-		"record": ruleTypeRecording,
+		"alert":  rule.TypeAlerting,
+		"record": rule.TypeRecording,
 	}
 )
 
@@ -112,7 +114,7 @@ func (rh *requestHandler) handler(w http.ResponseWriter, r *http.Request) bool {
 	case "/rules":
 		// Grafana makes an extra request to `/rules`
 		// handler in addition to `/api/v1/rules` calls in alerts UI
-		var data []*apiGroup
+		var data []*rule.ApiGroup
 		rf, err := newRulesFilter(r)
 		if err != nil {
 			httpserver.Errorf(w, r, "%s", err)
@@ -178,14 +180,14 @@ func (rh *requestHandler) handler(w http.ResponseWriter, r *http.Request) bool {
 		w.Write(data)
 		return true
 	case "/vmalert/api/v1/rule", "/api/v1/rule":
-		rule, err := rh.getRule(r)
+		apiRule, err := rh.getRule(r)
 		if err != nil {
 			httpserver.Errorf(w, r, "%s", err)
 			return true
 		}
-		rwu := apiRuleWithUpdates{
-			apiRule:      rule,
-			StateUpdates: rule.Updates,
+		rwu := rule.ApiRuleWithUpdates{
+			ApiRule:      apiRule,
+			StateUpdates: apiRule.Updates,
 		}
 		data, err := json.Marshal(rwu)
 		if err != nil {
@@ -195,6 +197,20 @@ func (rh *requestHandler) handler(w http.ResponseWriter, r *http.Request) bool {
 		w.Header().Set("Content-Type", "application/json")
 		w.Write(data)
 		return true
+	case "/vmalert/api/v1/group", "/api/v1/group":
+		group, err := rh.getGroup(r)
+		if err != nil {
+			httpserver.Errorf(w, r, "%s", err)
+			return true
+		}
+		data, err := json.Marshal(group)
+		if err != nil {
+			httpserver.Errorf(w, r, "failed to marshal group: %s", err)
+			return true
+		}
+		w.Header().Set("Content-Type", "application/json")
+		w.Write(data)
+		return true
 	case "/-/reload":
 		if !httpserver.CheckAuthFlag(w, r, reloadAuthKey) {
 			return true
@@ -209,30 +225,42 @@ func (rh *requestHandler) handler(w http.ResponseWriter, r *http.Request) bool {
 	}
 }
 
-func (rh *requestHandler) getRule(r *http.Request) (apiRule, error) {
-	groupID, err := strconv.ParseUint(r.FormValue(paramGroupID), 10, 64)
+func (rh *requestHandler) getGroup(r *http.Request) (*rule.ApiGroup, error) {
+	groupID, err := strconv.ParseUint(r.FormValue(rule.ParamGroupID), 10, 64)
 	if err != nil {
-		return apiRule{}, fmt.Errorf("failed to read %q param: %w", paramGroupID, err)
+		return nil, fmt.Errorf("failed to read %q param: %w", rule.ParamGroupID, err)
 	}
-	ruleID, err := strconv.ParseUint(r.FormValue(paramRuleID), 10, 64)
+	obj, err := rh.m.groupAPI(groupID)
 	if err != nil {
-		return apiRule{}, fmt.Errorf("failed to read %q param: %w", paramRuleID, err)
-	}
-	obj, err := rh.m.ruleAPI(groupID, ruleID)
-	if err != nil {
-		return apiRule{}, errResponse(err, http.StatusNotFound)
+		return nil, errResponse(err, http.StatusNotFound)
 	}
 	return obj, nil
 }
 
-func (rh *requestHandler) getAlert(r *http.Request) (*apiAlert, error) {
-	groupID, err := strconv.ParseUint(r.FormValue(paramGroupID), 10, 64)
+func (rh *requestHandler) getRule(r *http.Request) (rule.ApiRule, error) {
+	groupID, err := strconv.ParseUint(r.FormValue(rule.ParamGroupID), 10, 64)
 	if err != nil {
-		return nil, fmt.Errorf("failed to read %q param: %w", paramGroupID, err)
+		return rule.ApiRule{}, fmt.Errorf("failed to read %q param: %w", rule.ParamGroupID, err)
 	}
-	alertID, err := strconv.ParseUint(r.FormValue(paramAlertID), 10, 64)
+	ruleID, err := strconv.ParseUint(r.FormValue(rule.ParamRuleID), 10, 64)
 	if err != nil {
-		return nil, fmt.Errorf("failed to read %q param: %w", paramAlertID, err)
+		return rule.ApiRule{}, fmt.Errorf("failed to read %q param: %w", rule.ParamRuleID, err)
+	}
+	obj, err := rh.m.ruleAPI(groupID, ruleID)
+	if err != nil {
+		return rule.ApiRule{}, errResponse(err, http.StatusNotFound)
+	}
+	return obj, nil
+}
+
+func (rh *requestHandler) getAlert(r *http.Request) (*rule.ApiAlert, error) {
+	groupID, err := strconv.ParseUint(r.FormValue(rule.ParamGroupID), 10, 64)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read %q param: %w", rule.ParamGroupID, err)
+	}
+	alertID, err := strconv.ParseUint(r.FormValue(rule.ParamAlertID), 10, 64)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read %q param: %w", rule.ParamAlertID, err)
 	}
 	a, err := rh.m.alertAPI(groupID, alertID)
 	if err != nil {
@@ -244,7 +272,7 @@ func (rh *requestHandler) getAlert(r *http.Request) (*apiAlert, error) {
 type listGroupsResponse struct {
 	Status string `json:"status"`
 	Data   struct {
-		Groups []*apiGroup `json:"groups"`
+		Groups []*rule.ApiGroup `json:"groups"`
 	} `json:"data"`
 }
 
@@ -310,19 +338,19 @@ func (rf *rulesFilter) matchesGroup(group *rule.Group) bool {
 	return true
 }
 
-func (rh *requestHandler) groups(rf *rulesFilter) []*apiGroup {
+func (rh *requestHandler) groups(rf *rulesFilter) []*rule.ApiGroup {
 	rh.m.groupsMu.RLock()
 	defer rh.m.groupsMu.RUnlock()
 
-	groups := make([]*apiGroup, 0)
+	groups := make([]*rule.ApiGroup, 0)
 	for _, group := range rh.m.groups {
 		if !rf.matchesGroup(group) {
 			continue
 		}
-		g := groupToAPI(group)
+		g := group.ToAPI()
 		// the returned list should always be non-nil
 		// https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4221
-		filteredRules := make([]apiRule, 0)
+		filteredRules := make([]rule.ApiRule, 0)
 		for _, rule := range g.Rules {
 			if rf.ruleType != "" && rf.ruleType != rule.Type {
 				continue
@@ -350,7 +378,7 @@ func (rh *requestHandler) groups(rf *rulesFilter) []*apiGroup {
 		groups = append(groups, g)
 	}
 	// sort list of groups for deterministic output
-	slices.SortFunc(groups, func(a, b *apiGroup) int {
+	slices.SortFunc(groups, func(a, b *rule.ApiGroup) int {
 		if a.Name != b.Name {
 			return strings.Compare(a.Name, b.Name)
 		}
@@ -375,32 +403,32 @@ func (rh *requestHandler) listGroups(rf *rulesFilter) ([]byte, error) {
 type listAlertsResponse struct {
 	Status string `json:"status"`
 	Data   struct {
-		Alerts []*apiAlert `json:"alerts"`
+		Alerts []*rule.ApiAlert `json:"alerts"`
 	} `json:"data"`
 }
 
-func (rh *requestHandler) groupAlerts() []groupAlerts {
+func (rh *requestHandler) groupAlerts() []rule.GroupAlerts {
 	rh.m.groupsMu.RLock()
 	defer rh.m.groupsMu.RUnlock()
 
-	var gAlerts []groupAlerts
+	var gAlerts []rule.GroupAlerts
 	for _, g := range rh.m.groups {
-		var alerts []*apiAlert
+		var alerts []*rule.ApiAlert
 		for _, r := range g.Rules {
 			a, ok := r.(*rule.AlertingRule)
 			if !ok {
 				continue
 			}
-			alerts = append(alerts, ruleToAPIAlert(a)...)
+			alerts = append(alerts, a.AlertsToAPI()...)
 		}
 		if len(alerts) > 0 {
-			gAlerts = append(gAlerts, groupAlerts{
-				Group:  groupToAPI(g),
+			gAlerts = append(gAlerts, rule.GroupAlerts{
+				Group:  g.ToAPI(),
 				Alerts: alerts,
 			})
 		}
 	}
-	slices.SortFunc(gAlerts, func(a, b groupAlerts) int {
+	slices.SortFunc(gAlerts, func(a, b rule.GroupAlerts) int {
 		return strings.Compare(a.Group.Name, b.Group.Name)
 	})
 	return gAlerts
@@ -411,7 +439,7 @@ func (rh *requestHandler) listAlerts(rf *rulesFilter) ([]byte, error) {
 	defer rh.m.groupsMu.RUnlock()
 
 	lr := listAlertsResponse{Status: "success"}
-	lr.Data.Alerts = make([]*apiAlert, 0)
+	lr.Data.Alerts = make([]*rule.ApiAlert, 0)
 	for _, group := range rh.m.groups {
 		if !rf.matchesGroup(group) {
 			continue
@@ -421,12 +449,12 @@ func (rh *requestHandler) listAlerts(rf *rulesFilter) ([]byte, error) {
 			if !ok {
 				continue
 			}
-			lr.Data.Alerts = append(lr.Data.Alerts, ruleToAPIAlert(a)...)
+			lr.Data.Alerts = append(lr.Data.Alerts, a.AlertsToAPI()...)
 		}
 	}
 
 	// sort list of alerts for deterministic output
-	slices.SortFunc(lr.Data.Alerts, func(a, b *apiAlert) int {
+	slices.SortFunc(lr.Data.Alerts, func(a, b *rule.ApiAlert) int {
 		return strings.Compare(a.ID, b.ID)
 	})
 
@@ -443,7 +471,7 @@ func (rh *requestHandler) listAlerts(rf *rulesFilter) ([]byte, error) {
 type listNotifiersResponse struct {
 	Status string `json:"status"`
 	Data   struct {
-		Notifiers []*apiNotifier `json:"notifiers"`
+		Notifiers []*notifier.ApiNotifier `json:"notifiers"`
 	} `json:"data"`
 }
 
@@ -451,19 +479,20 @@ func (rh *requestHandler) listNotifiers() ([]byte, error) {
 	targets := notifier.GetTargets()
 
 	lr := listNotifiersResponse{Status: "success"}
-	lr.Data.Notifiers = make([]*apiNotifier, 0)
+	lr.Data.Notifiers = make([]*notifier.ApiNotifier, 0)
 	for protoName, protoTargets := range targets {
-		notifier := &apiNotifier{
-			Kind:    string(protoName),
-			Targets: make([]*apiTarget, 0, len(protoTargets)),
+		nr := &notifier.ApiNotifier{
+			Kind:    protoName,
+			Targets: make([]*notifier.ApiTarget, 0, len(protoTargets)),
 		}
 		for _, target := range protoTargets {
-			notifier.Targets = append(notifier.Targets, &apiTarget{
-				Address: target.Addr(),
-				Labels:  target.Labels.ToMap(),
+			nr.Targets = append(nr.Targets, &notifier.ApiTarget{
+				Address:   target.Addr(),
+				Labels:    target.Labels.ToMap(),
+				LastError: target.LastError(),
 			})
 		}
-		lr.Data.Notifiers = append(lr.Data.Notifiers, notifier)
+		lr.Data.Notifiers = append(lr.Data.Notifiers, nr)
 	}
 
 	b, err := json.Marshal(lr)

app/vmalert/web.qtpl

@@ -8,6 +8,7 @@
     "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/tpl"
     "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/vmalertutil"
     "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
+    "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/rule"
 ) %}
 
 {% func Controls(prefix, currentIcon, currentText string, icons, filters map[string]string, search bool) %}
@@ -93,7 +94,7 @@
     {%= tpl.Footer(r) %}
 {% endfunc %}
 
-{% func ListGroups(r *http.Request, groups []*apiGroup, filter string) %}
+{% func ListGroups(r *http.Request, groups []*rule.ApiGroup, filter string) %}
     {%code
         prefix := vmalertutil.Prefix(r.URL.Path)
         filters := map[string]string{
@@ -222,7 +223,7 @@
 {% endfunc %}
 
 
-{% func ListAlerts(r *http.Request, groupAlerts []groupAlerts) %}
+{% func ListAlerts(r *http.Request, groupAlerts []rule.GroupAlerts) %}
     {%code prefix := vmalertutil.Prefix(r.URL.Path) %}
     {%= tpl.Header(r, navItems, "Alerts", getLastConfigError()) %}
     {%= Controls(prefix, "", "", nil, nil, true) %}
@@ -231,7 +232,7 @@
              {%code
                  g := ga.Group
                  var keys []string
-                 alertsByRule := make(map[string][]*apiAlert)
+                 alertsByRule := make(map[string][]*rule.ApiAlert)
                  for _, alert := range ga.Alerts {
                      if len(alertsByRule[alert.RuleID]) < 1 {
                          keys = append(keys, alert.RuleID)
@@ -378,7 +379,7 @@
     {%= tpl.Footer(r) %}
 {% endfunc %}
 
-{% func Alert(r *http.Request, alert *apiAlert) %}
+{% func Alert(r *http.Request, alert *rule.ApiAlert) %}
     {%code prefix := vmalertutil.Prefix(r.URL.Path) %}
     {%= tpl.Header(r, navItems, "", getLastConfigError()) %}
     {%code
@@ -464,7 +465,7 @@
 {% endfunc %}
 
 
-{% func RuleDetails(r *http.Request, rule apiRule) %}
+{% func RuleDetails(r *http.Request, rule rule.ApiRule) %}
     {%code prefix := vmalertutil.Prefix(r.URL.Path) %}
     {%= tpl.Header(r, navItems, "", getLastConfigError()) %}
     {%code
@@ -649,7 +650,7 @@
 <span class="badge bg-warning text-dark" title="This firing state is kept because of `keep_firing_for`">stabilizing</span>
 {% endfunc %}
 
-{% func seriesFetchedWarn(prefix string, r apiRule) %}
+{% func seriesFetchedWarn(prefix string, r rule.ApiRule) %}
 {% if isNoMatch(r) %}
 <svg
     data-bs-toggle="tooltip"
@@ -663,7 +664,7 @@
 {% endfunc %}
 
 {%code
-  func isNoMatch (r apiRule) bool {
+  func isNoMatch (r rule.ApiRule) bool {
     return r.LastSamples == 0 && r.LastSeriesFetched != nil && *r.LastSeriesFetched == 0
   }
 %}

app/vmalert/web_test.go

@@ -25,6 +25,7 @@ func TestHandler(t *testing.T) {
 	m := &manager{groups: map[uint64]*rule.Group{}}
 	var ar *rule.AlertingRule
 	var rr *rule.RecordingRule
+	var groupIDs []uint64
 	for _, dsType := range []string{"prometheus", "", "graphite"} {
 		g := rule.NewGroup(config.Group{
 			Name:        "group",
@@ -45,7 +46,9 @@ func TestHandler(t *testing.T) {
 		ar = g.Rules[0].(*rule.AlertingRule)
 		rr = g.Rules[1].(*rule.RecordingRule)
 		g.ExecOnce(context.Background(), func() []notifier.Notifier { return nil }, nil, time.Time{})
-		m.groups[g.CreateID()] = g
+		id := g.CreateID()
+		m.groups[id] = g
+		groupIDs = append(groupIDs, id)
 	}
 	rh := &requestHandler{m: m}
 
@@ -82,22 +85,22 @@ func TestHandler(t *testing.T) {
 	})
 
 	t.Run("/vmalert/rule", func(t *testing.T) {
-		a := ruleToAPI(ar)
+		a := ar.ToAPI()
 		getResp(t, ts.URL+"/vmalert/"+a.WebLink(), nil, 200)
-		r := ruleToAPI(rr)
+		r := rr.ToAPI()
 		getResp(t, ts.URL+"/vmalert/"+r.WebLink(), nil, 200)
 	})
 	t.Run("/vmalert/alert", func(t *testing.T) {
-		alerts := ruleToAPIAlert(ar)
+		alerts := ar.AlertsToAPI()
 		for _, a := range alerts {
 			getResp(t, ts.URL+"/vmalert/"+a.WebLink(), nil, 200)
 		}
 	})
 	t.Run("/vmalert/rule?badParam", func(t *testing.T) {
-		params := fmt.Sprintf("?%s=0&%s=1", paramGroupID, paramRuleID)
+		params := fmt.Sprintf("?%s=0&%s=1", rule.ParamGroupID, rule.ParamRuleID)
 		getResp(t, ts.URL+"/vmalert/rule"+params, nil, 404)
 
-		params = fmt.Sprintf("?%s=1&%s=0", paramGroupID, paramRuleID)
+		params = fmt.Sprintf("?%s=1&%s=0", rule.ParamGroupID, rule.ParamRuleID)
 		getResp(t, ts.URL+"/vmalert/rule"+params, nil, 404)
 	})
 
@@ -124,14 +127,14 @@ func TestHandler(t *testing.T) {
 		}
 	})
 	t.Run("/api/v1/alert?alertID&groupID", func(t *testing.T) {
-		expAlert := newAlertAPI(ar, ar.GetAlerts()[0])
-		alert := &apiAlert{}
+		expAlert := rule.NewAlertAPI(ar, ar.GetAlerts()[0])
+		alert := &rule.ApiAlert{}
 		getResp(t, ts.URL+"/"+expAlert.APILink(), alert, 200)
 		if !reflect.DeepEqual(alert, expAlert) {
 			t.Fatalf("expected %v is equal to %v", alert, expAlert)
 		}
 
-		alert = &apiAlert{}
+		alert = &rule.ApiAlert{}
 		getResp(t, ts.URL+"/vmalert/"+expAlert.APILink(), alert, 200)
 		if !reflect.DeepEqual(alert, expAlert) {
 			t.Fatalf("expected %v is equal to %v", alert, expAlert)
@@ -139,16 +142,16 @@ func TestHandler(t *testing.T) {
 	})
 
 	t.Run("/api/v1/alert?badParams", func(t *testing.T) {
-		params := fmt.Sprintf("?%s=0&%s=1", paramGroupID, paramAlertID)
+		params := fmt.Sprintf("?%s=0&%s=1", rule.ParamGroupID, rule.ParamAlertID)
 		getResp(t, ts.URL+"/api/v1/alert"+params, nil, 404)
 		getResp(t, ts.URL+"/vmalert/api/v1/alert"+params, nil, 404)
 
-		params = fmt.Sprintf("?%s=1&%s=0", paramGroupID, paramAlertID)
+		params = fmt.Sprintf("?%s=1&%s=0", rule.ParamGroupID, rule.ParamAlertID)
 		getResp(t, ts.URL+"/api/v1/alert"+params, nil, 404)
 		getResp(t, ts.URL+"/vmalert/api/v1/alert"+params, nil, 404)
 
 		// bad request, alertID is missing
-		params = fmt.Sprintf("?%s=1", paramGroupID)
+		params = fmt.Sprintf("?%s=1", rule.ParamGroupID)
 		getResp(t, ts.URL+"/api/v1/alert"+params, nil, 400)
 		getResp(t, ts.URL+"/vmalert/api/v1/alert"+params, nil, 400)
 	})
@@ -167,27 +170,42 @@ func TestHandler(t *testing.T) {
 		}
 	})
 	t.Run("/api/v1/rule?ruleID&groupID", func(t *testing.T) {
-		expRule := ruleToAPI(ar)
-		gotRule := apiRule{}
+		expRule := ar.ToAPI()
+		gotRule := rule.ApiRule{}
 		getResp(t, ts.URL+"/"+expRule.APILink(), &gotRule, 200)
 
 		if expRule.ID != gotRule.ID {
 			t.Fatalf("expected to get Rule %q; got %q instead", expRule.ID, gotRule.ID)
 		}
 
-		gotRule = apiRule{}
+		gotRule = rule.ApiRule{}
 		getResp(t, ts.URL+"/vmalert/"+expRule.APILink(), &gotRule, 200)
 
 		if expRule.ID != gotRule.ID {
 			t.Fatalf("expected to get Rule %q; got %q instead", expRule.ID, gotRule.ID)
 		}
 
-		gotRuleWithUpdates := apiRuleWithUpdates{}
+		gotRuleWithUpdates := rule.ApiRuleWithUpdates{}
 		getResp(t, ts.URL+"/"+expRule.APILink(), &gotRuleWithUpdates, 200)
 		if len(gotRuleWithUpdates.StateUpdates) < 1 {
 			t.Fatalf("expected %+v to have state updates field not empty", gotRuleWithUpdates.StateUpdates)
 		}
 	})
+	t.Run("/api/v1/group?groupID", func(t *testing.T) {
+		id := groupIDs[0]
+		g := m.groups[id]
+		expGroup := g.ToAPI()
+		gotGroup := rule.ApiGroup{}
+		getResp(t, ts.URL+"/"+expGroup.APILink(), &gotGroup, 200)
+		if expGroup.ID != gotGroup.ID {
+			t.Fatalf("expected to get Group %q; got %q instead", expGroup.ID, gotGroup.ID)
+		}
+		gotGroup = rule.ApiGroup{}
+		getResp(t, ts.URL+"/vmalert/"+expGroup.APILink(), &gotGroup, 200)
+		if expGroup.ID != gotGroup.ID {
+			t.Fatalf("expected to get Group %q; got %q instead", expGroup.ID, gotGroup.ID)
+		}
+	})
 
 	t.Run("/api/v1/rules&filters", func(t *testing.T) {
 		check := func(url string, statusCode, expGroups, expRules int) {

app/vmauth/auth_config.go

@@ -41,6 +41,9 @@ var (
 		"See https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing for details")
 	defaultLoadBalancingPolicy = flag.String("loadBalancingPolicy", "least_loaded", "The default load balancing policy to use for backend urls specified inside url_prefix section. "+
 		"Supported policies: least_loaded, first_available. See https://docs.victoriametrics.com/victoriametrics/vmauth/#load-balancing")
+	defaultMergeQueryArgs = flagutil.NewArrayString("mergeQueryArgs", "An optional list of client query arg names, which must be merged with args at backend urls. "+
+		"The rest of client query args are replaced by the corresponding query args from backend urls for security reasons; "+
+		"see https://docs.victoriametrics.com/victoriametrics/vmauth/#query-args-handling")
 	discoverBackendIPsGlobal = flag.Bool("discoverBackendIPs", false, "Whether to discover backend IPs via periodic DNS queries to hostnames specified in url_prefix. "+
 		"This may be useful when url_prefix points to a hostname with dynamically scaled instances behind it. See https://docs.victoriametrics.com/victoriametrics/vmauth/#discovering-backend-ips")
 	discoverBackendIPsInterval = flag.Duration("discoverBackendIPsInterval", 10*time.Second, "The interval for re-discovering backend IPs if -discoverBackendIPs command-line flag is set. "+
@@ -75,6 +78,7 @@ type UserInfo struct {
 	DefaultURL             *URLPrefix  `yaml:"default_url,omitempty"`
 	RetryStatusCodes       []int       `yaml:"retry_status_codes,omitempty"`
 	LoadBalancingPolicy    string      `yaml:"load_balancing_policy,omitempty"`
+	MergeQueryArgs         []string    `yaml:"merge_query_args,omitempty"`
 	DropSrcPathPrefixParts *int        `yaml:"drop_src_path_prefix_parts,omitempty"`
 	TLSCAFile              string      `yaml:"tls_ca_file,omitempty"`
 	TLSCertFile            string      `yaml:"tls_cert_file,omitempty"`
@@ -182,6 +186,11 @@ type URLMap struct {
 	// LoadBalancingPolicy is load balancing policy among UrlPrefix backends.
 	LoadBalancingPolicy string `yaml:"load_balancing_policy,omitempty"`
 
+	// MergeQueryArgs is a list of client query args, which must be merged with the existing backend query args.
+	//
+	// The rest of client query args are replaced with the corresponding backend query args for security reasons.
+	MergeQueryArgs []string `yaml:"merge_query_args,omitempty"`
+
 	// DropSrcPathPrefixParts is the number of `/`-delimited request path prefix parts to drop before proxying the request to backend.
 	DropSrcPathPrefixParts *int `yaml:"drop_src_path_prefix_parts,omitempty"`
 }
@@ -228,7 +237,7 @@ func (qa *QueryArg) MarshalYAML() (any, error) {
 	return qa.sOriginal, nil
 }
 
-// URLPrefix represents passed `url_prefix`
+// URLPrefix represents the `url_prefix` from auth config.
 type URLPrefix struct {
 	// requests are re-tried on other backend urls for these http response status codes
 	retryStatusCodes []int
@@ -236,6 +245,11 @@ type URLPrefix struct {
 	// load balancing policy used
 	loadBalancingPolicy string
 
+	// the list of client query args, which must be merged with backend query args.
+	//
+	// By default backend query args replace all the client query args for security reasons.
+	mergeQueryArgs []string
+
 	// how many request path prefix parts to drop before routing the request to backendURL
 	dropSrcPathPrefixParts int
 
@@ -856,6 +870,7 @@ func (ui *UserInfo) getMetricLabels() (string, error) {
 func (ui *UserInfo) initURLs() error {
 	retryStatusCodes := defaultRetryStatusCodes.Values()
 	loadBalancingPolicy := *defaultLoadBalancingPolicy
+	mergeQueryArgs := *defaultMergeQueryArgs
 	dropSrcPathPrefixParts := 0
 	discoverBackendIPs := *discoverBackendIPsGlobal
 	if ui.RetryStatusCodes != nil {
@@ -864,6 +879,9 @@ func (ui *UserInfo) initURLs() error {
 	if ui.LoadBalancingPolicy != "" {
 		loadBalancingPolicy = ui.LoadBalancingPolicy
 	}
+	if len(ui.MergeQueryArgs) != 0 {
+		mergeQueryArgs = ui.MergeQueryArgs
+	}
 	if ui.DropSrcPathPrefixParts != nil {
 		dropSrcPathPrefixParts = *ui.DropSrcPathPrefixParts
 	}
@@ -871,16 +889,18 @@ func (ui *UserInfo) initURLs() error {
 		discoverBackendIPs = *ui.DiscoverBackendIPs
 	}
 
-	if ui.URLPrefix != nil {
-		if err := ui.URLPrefix.sanitizeAndInitialize(); err != nil {
+	up := ui.URLPrefix
+	if up != nil {
+		if err := up.sanitizeAndInitialize(); err != nil {
 			return err
 		}
-		ui.URLPrefix.retryStatusCodes = retryStatusCodes
-		ui.URLPrefix.dropSrcPathPrefixParts = dropSrcPathPrefixParts
-		ui.URLPrefix.discoverBackendIPs = discoverBackendIPs
-		if err := ui.URLPrefix.setLoadBalancingPolicy(loadBalancingPolicy); err != nil {
+		up.retryStatusCodes = retryStatusCodes
+		up.dropSrcPathPrefixParts = dropSrcPathPrefixParts
+		up.discoverBackendIPs = discoverBackendIPs
+		if err := up.setLoadBalancingPolicy(loadBalancingPolicy); err != nil {
 			return err
 		}
+		up.mergeQueryArgs = mergeQueryArgs
 	}
 	if ui.DefaultURL != nil {
 		if err := ui.DefaultURL.sanitizeAndInitialize(); err != nil {
@@ -899,6 +919,7 @@ func (ui *UserInfo) initURLs() error {
 		}
 		rscs := retryStatusCodes
 		lbp := loadBalancingPolicy
+		mqa := mergeQueryArgs
 		dsp := dropSrcPathPrefixParts
 		dbd := discoverBackendIPs
 		if e.RetryStatusCodes != nil {
@@ -907,6 +928,9 @@ func (ui *UserInfo) initURLs() error {
 		if e.LoadBalancingPolicy != "" {
 			lbp = e.LoadBalancingPolicy
 		}
+		if len(e.MergeQueryArgs) != 0 {
+			mqa = e.MergeQueryArgs
+		}
 		if e.DropSrcPathPrefixParts != nil {
 			dsp = *e.DropSrcPathPrefixParts
 		}
@@ -917,6 +941,7 @@ func (ui *UserInfo) initURLs() error {
 		if err := e.URLPrefix.setLoadBalancingPolicy(lbp); err != nil {
 			return err
 		}
+		e.URLPrefix.mergeQueryArgs = mqa
 		e.URLPrefix.dropSrcPathPrefixParts = dsp
 		e.URLPrefix.discoverBackendIPs = dbd
 	}

app/vmauth/auth_config_test.go

@@ -280,7 +280,7 @@ users:
 }
 
 func TestParseAuthConfigSuccess(t *testing.T) {
-	f := func(s string, expectedAuthConfig map[string]*UserInfo) {
+	f := func(s string, expectedAuthConfig map[string]*UserInfo, expectedUnauthorizedUserConfig *UserInfo) {
 		t.Helper()
 		ac, err := parseAuthConfig([]byte(s))
 		if err != nil {
@@ -294,15 +294,19 @@ func TestParseAuthConfigSuccess(t *testing.T) {
 		if err := areEqualConfigs(m, expectedAuthConfig); err != nil {
 			t.Fatal(err)
 		}
+
+		if err := areEqualConfigs(ac.UnauthorizedUser, expectedUnauthorizedUserConfig); err != nil {
+			t.Fatal(err)
+		}
 	}
 
 	insecureSkipVerifyTrue := true
 
 	// Empty config
-	f(``, map[string]*UserInfo{})
+	f(``, map[string]*UserInfo{}, nil)
 
 	// Empty users
-	f(`users: []`, map[string]*UserInfo{})
+	f(`users: []`, map[string]*UserInfo{}, nil)
 
 	// Single user
 	f(`
@@ -320,7 +324,7 @@ users:
 			MaxConcurrentRequests: 5,
 			TLSInsecureSkipVerify: &insecureSkipVerifyTrue,
 		},
-	})
+	}, nil)
 
 	// Single user with auth_token
 	f(`
@@ -344,7 +348,7 @@ users:
 			TLSCertFile:           "foo/baz",
 			TLSKeyFile:            "foo/foo",
 		},
-	})
+	}, nil)
 
 	// Multiple url_prefix entries
 	insecureSkipVerifyFalse := false
@@ -359,6 +363,7 @@ users:
   tls_insecure_skip_verify: false
   retry_status_codes: [500, 501]
   load_balancing_policy: first_available
+  merge_query_args: [foo, bar]
   drop_src_path_prefix_parts: 1
   discover_backend_ips: true
 `, map[string]*UserInfo{
@@ -372,10 +377,11 @@ users:
 			TLSInsecureSkipVerify:  &insecureSkipVerifyFalse,
 			RetryStatusCodes:       []int{500, 501},
 			LoadBalancingPolicy:    "first_available",
+			MergeQueryArgs:         []string{"foo", "bar"},
 			DropSrcPathPrefixParts: intp(1),
 			DiscoverBackendIPs:     &discoverBackendIPsTrue,
 		},
-	})
+	}, nil)
 
 	// Multiple users
 	f(`
@@ -393,7 +399,7 @@ users:
 			Username:  "bar",
 			URLPrefix: mustParseURL("https://bar/x/"),
 		},
-	})
+	}, nil)
 
 	// non-empty URLMap
 	sharedUserInfo := &UserInfo{
@@ -443,7 +449,7 @@ users:
 `, map[string]*UserInfo{
 		getHTTPAuthBearerToken("foo"):    sharedUserInfo,
 		getHTTPAuthBasicToken("foo", ""): sharedUserInfo,
-	})
+	}, nil)
 
 	// Multiple users with the same name - this should work, since these users have different passwords
 	f(`
@@ -465,7 +471,7 @@ users:
 			Password:  "bar",
 			URLPrefix: mustParseURL("https://bar/x"),
 		},
-	})
+	}, nil)
 
 	// with default url
 	keepOriginalHost := true
@@ -481,6 +487,8 @@ users:
     - "foo: bar"
     - "xxx: y"
     keep_original_host: true
+    load_balancing_policy: first_available
+    merge_query_args: [foo, bar]
   default_url:
   - http://default1/select/0/prometheus
   - http://default2/select/0/prometheus
@@ -505,6 +513,8 @@ users:
 						},
 						KeepOriginalHost: &keepOriginalHost,
 					},
+					LoadBalancingPolicy: "first_available",
+					MergeQueryArgs:      []string{"foo", "bar"},
 				},
 			},
 			DefaultURL: mustParseURLs([]string{
@@ -532,6 +542,8 @@ users:
 						},
 						KeepOriginalHost: &keepOriginalHost,
 					},
+					LoadBalancingPolicy: "first_available",
+					MergeQueryArgs:      []string{"foo", "bar"},
 				},
 			},
 			DefaultURL: mustParseURLs([]string{
@@ -539,7 +551,7 @@ users:
 				"http://default2/select/0/prometheus",
 			}),
 		},
-	})
+	}, nil)
 
 	// With metric_labels
 	f(`
@@ -591,6 +603,23 @@ users:
 				},
 			},
 		},
+	}, nil)
+
+	// unauthorized_user
+	f(`
+unauthorized_user:
+  merge_query_args: [extra_filters]
+  url_map:
+  - src_paths: ["/select/.+"]
+    url_prefix: 'http://victoria-logs:9428/?extra_filters={env="prod"}'
+`, nil, &UserInfo{
+		MergeQueryArgs: []string{"extra_filters"},
+		URLMaps: []URLMap{
+			{
+				SrcPaths:  getRegexs([]string{"/select/.+"}),
+				URLPrefix: mustParseURL(`http://victoria-logs:9428/?extra_filters={env="prod"}`),
+			},
+		},
 	})
 }
 
@@ -884,7 +913,7 @@ func removeMetrics(m map[string]*UserInfo) {
 	}
 }
 
-func areEqualConfigs(a, b map[string]*UserInfo) error {
+func areEqualConfigs(a, b any) error {
 	aData, err := yaml.Marshal(a)
 	if err != nil {
 		return fmt.Errorf("cannot marshal a: %w", err)

app/vmauth/main.go

@@ -269,7 +269,7 @@ func processRequest(w http.ResponseWriter, r *http.Request, ui *UserInfo) {
 			query.Set("request_path", u.String())
 			targetURL.RawQuery = query.Encode()
 		} else { // Update path for regular routes.
-			targetURL = mergeURLs(targetURL, u, up.dropSrcPathPrefixParts)
+			targetURL = mergeURLs(targetURL, u, up.dropSrcPathPrefixParts, up.mergeQueryArgs)
 		}
 
 		wasLocalRetry := false
@@ -372,20 +372,54 @@ func tryProcessingRequest(w http.ResponseWriter, r *http.Request, targetURL *url
 	updateHeadersByConfig(w.Header(), hc.ResponseHeaders)
 	w.WriteHeader(res.StatusCode)
 
-	copyBuf := copyBufPool.Get()
-	copyBuf.B = bytesutil.ResizeNoCopyNoOverallocate(copyBuf.B, 16*1024)
-	_, err = io.CopyBuffer(w, res.Body, copyBuf.B)
-	copyBufPool.Put(copyBuf)
+	err = copyStreamToClient(w, res.Body)
 	_ = res.Body.Close()
-	if err != nil && !netutil.IsTrivialNetworkError(err) {
+	if err != nil && !netutil.IsTrivialNetworkError(err) && !errors.Is(err, context.Canceled) {
 		remoteAddr := httpserver.GetQuotedRemoteAddr(r)
 		requestURI := httpserver.GetRequestURI(r)
+
 		logger.Warnf("remoteAddr: %s; requestURI: %s; error when proxying response body from %s: %s", remoteAddr, requestURI, targetURL, err)
 		return true, false
 	}
 	return true, false
 }
 
+func copyStreamToClient(client io.Writer, backend io.Reader) error {
+	copyBuf := copyBufPool.Get()
+	copyBuf.B = bytesutil.ResizeNoCopyNoOverallocate(copyBuf.B, 16*1024)
+	defer copyBufPool.Put(copyBuf)
+	buf := copyBuf.B
+
+	flusher, ok := client.(http.Flusher)
+	if !ok {
+		logger.Panicf("BUG: client must implement net/http.Flusher interface; got %T", client)
+	}
+
+	for {
+		n, backendErr := backend.Read(buf)
+		if n > 0 {
+			data := buf[:n]
+			n, clientErr := client.Write(data)
+			if clientErr != nil {
+				return fmt.Errorf("cannot write data to client: %w", clientErr)
+			}
+			if n != len(data) {
+				logger.Panicf("BUG: unexpected number of bytes written returned by client.Write; got %d; want %d", n, len(data))
+			}
+			// Flush the read data from the backend to the client as fast as possible
+			// in order to reduce delays for data propagation.
+			// See https://github.com/VictoriaMetrics/VictoriaLogs/issues/667
+			flusher.Flush()
+		}
+		if backendErr != nil {
+			if backendErr == io.EOF {
+				return nil
+			}
+			return fmt.Errorf("cannot read data from backend: %w", backendErr)
+		}
+	}
+}
+
 var copyBufPool bytesutil.ByteBufferPool
 
 func copyHeader(dst, src http.Header) {

app/vmauth/main_test.go

@@ -514,6 +514,11 @@ func (w *fakeResponseWriter) getResponse() string {
 	return w.bb.String()
 }
 
+// Flush implements net/http.Flusher
+func (w *fakeResponseWriter) Flush() {
+	// Nothing to do.
+}
+
 func (w *fakeResponseWriter) Header() http.Header {
 	if w.h == nil {
 		w.h = http.Header{}

app/vmauth/target_url.go

@@ -8,29 +8,42 @@ import (
 	"strings"
 )
 
-func mergeURLs(uiURL, requestURI *url.URL, dropSrcPathPrefixParts int) *url.URL {
+func mergeURLs(uiURL, requestURI *url.URL, dropSrcPathPrefixParts int, mergeQueryArgs []string) *url.URL {
 	targetURL := *uiURL
+
 	srcPath := dropPrefixParts(requestURI.Path, dropSrcPathPrefixParts)
 	if strings.HasPrefix(srcPath, "/") {
 		targetURL.Path = strings.TrimSuffix(targetURL.Path, "/")
 	}
 	targetURL.Path += srcPath
 	requestParams := requestURI.Query()
-	// fast path
+
 	if len(requestParams) == 0 {
 		return &targetURL
 	}
-	// merge query parameters from requests.
-	uiParams := targetURL.Query()
+
+	// Merge client query args with backend query args
+	targetParams := targetURL.Query()
+	uiParams := url.Values{}
+
+	// Copy all the target query args
+	for k, v := range targetParams {
+		for i := range v {
+			uiParams.Add(k, v[i])
+		}
+	}
+
+	// Copy the client query args if they do not clash with target args.
 	for k, v := range requestParams {
-		// skip clashed query params from original request
-		if exist := uiParams.Get(k); len(exist) > 0 {
+		if targetParams.Has(k) && !slices.Contains(mergeQueryArgs, k) {
+			// Skip clashed client query params for security reasons
 			continue
 		}
 		for i := range v {
 			uiParams.Add(k, v[i])
 		}
 	}
+
 	targetURL.RawQuery = uiParams.Encode()
 	return &targetURL
 }

app/vmauth/target_url_test.go

@@ -101,7 +101,7 @@ func TestCreateTargetURLSuccess(t *testing.T) {
 			return
 		}
 		bu := up.getBackendURL()
-		target := mergeURLs(bu.url, u, up.dropSrcPathPrefixParts)
+		target := mergeURLs(bu.url, u, up.dropSrcPathPrefixParts, up.mergeQueryArgs)
 		bu.put()
 
 		gotTarget := target.String()
@@ -352,7 +352,7 @@ func TestUserInfoGetBackendURL_SRV(t *testing.T) {
 			return
 		}
 		bu := up.getBackendURL()
-		target := mergeURLs(bu.url, u, up.dropSrcPathPrefixParts)
+		target := mergeURLs(bu.url, u, up.dropSrcPathPrefixParts, up.mergeQueryArgs)
 		bu.put()
 
 		gotTarget := target.String()
@@ -528,3 +528,43 @@ func (r *fakeResolver) LookupIPAddr(_ context.Context, host string) ([]net.IPAdd
 func (r *fakeResolver) LookupMX(_ context.Context, _ string) ([]*net.MX, error) {
 	return nil, nil
 }
+
+func TestMergeURLs(t *testing.T) {
+	f := func(clientURL, backendURL string, dropSrcPathPrefixParts int, mergeQueryArgs []string, resultURLExpected string) {
+		t.Helper()
+
+		cu, err := url.Parse(clientURL)
+		if err != nil {
+			t.Fatalf("cannot parse client url %q: %s", clientURL, err)
+		}
+		cu = normalizeURL(cu)
+
+		bu, err := url.Parse(backendURL)
+		if err != nil {
+			t.Fatalf("cannot parse backend url %q: %s", backendURL, err)
+		}
+
+		ru := mergeURLs(bu, cu, dropSrcPathPrefixParts, mergeQueryArgs)
+		resultURL := ru.String()
+		if resultURL != resultURLExpected {
+			t.Fatalf("unexpected resultURL\ngot\n%s\nwant\n%s", resultURL, resultURLExpected)
+		}
+	}
+
+	f("http://foo:1234", "https://backend/foo/bar?baz=abc&de", 0, nil, "https://backend/foo/bar?baz=abc&de")
+	f("http://foo:1234", "https://backend/foo/bar/?baz=abc&de", 0, nil, "https://backend/foo/bar/?baz=abc&de")
+	f("https://foo:1234/", "https://backend/foo/bar?baz=abc&de", 0, nil, "https://backend/foo/bar?baz=abc&de")
+	f("https://foo:1234/", "http://backend:8888/foo/bar/?baz=abc&de", 0, nil, "http://backend:8888/foo/bar/?baz=abc&de")
+
+	// merge paths
+	f("http://foo:1234/x/y?z=xxx", "https://backend/foo/bar?baz=abc&de", 0, nil, "https://backend/foo/bar/x/y?baz=abc&de=&z=xxx")
+
+	// "hacky" url
+	f("http://foo:1234/../../x/../y?z=xxx", "https://backend/foo/bar?baz=abc&de", 0, nil, "https://backend/foo/bar/y?baz=abc&de=&z=xxx")
+
+	// make sure that the client args are overridden by server args by default
+	f("http://foo:1234/x/y?password=hack&qqq=www", "https://backend/foo/bar?password=abc", 0, nil, "https://backend/foo/bar/x/y?password=abc&qqq=www")
+
+	// allow overriding the selected query args
+	f("http://foo:1234/x/y?baz=xxx&qqq=www", "https://backend/foo/bar?baz=abc", 0, []string{"baz"}, "https://backend/foo/bar/x/y?baz=abc&baz=xxx&qqq=www")
+}

app/vmbackup/main.go

@@ -115,7 +115,7 @@ func main() {
 	if err != nil {
 		logger.Fatalf("cannot create backup: %s", err)
 	}
-	pushmetrics.Stop()
+	pushmetrics.StopAndPush()
 
 	startTime := time.Now()
 	logger.Infof("gracefully shutting down http server for metrics at %q", listenAddrs)

app/vmctl/vm/timeseries.go

@@ -63,10 +63,7 @@ func (ts *TimeSeries) write(w io.Writer) (int, error) {
 		// Split long lines with more than 10K samples into multiple JSON lines.
 		// This should limit memory usage at VictoriaMetrics during data ingestion,
 		// since it allocates memory for the whole JSON line and processes it in one go.
-		batchSize := 10000
-		if batchSize > len(timestamps) {
-			batchSize = len(timestamps)
-		}
+		batchSize := min(10000, len(timestamps))
 		timestampsBatch := timestamps[:batchSize]
 		valuesBatch := values[:batchSize]
 		timestamps = timestamps[batchSize:]

app/vmctl/vm_native.go

@@ -121,7 +121,7 @@ func (p *vmNativeProcessor) runSingle(ctx context.Context, f native.Filter, srcU
 		pr := bar.NewProxyReader(reader)
 		if pr != nil {
 			reader = pr
-			fmt.Printf("Continue import process with filter %s:\n", f.String())
+			fmt.Fprintf(log.Writer(), "Continue import process with filter %s:\n", f.String())
 		}
 	}
 
@@ -191,7 +191,7 @@ func (p *vmNativeProcessor) runBackfilling(ctx context.Context, tenantID string,
 		initParams = []any{srcURL, dstURL, p.filter.String(), tenantID}
 	}
 
-	fmt.Println("") // extra line for better output formatting
+	fmt.Fprintln(log.Writer(), "") // extra line for better output formatting
 	log.Printf(initMessage, initParams...)
 	if len(ranges) > 1 {
 		log.Printf("Selected time range will be split into %d ranges according to %q step", len(ranges), p.filter.Chunk)

app/vminsert/prometheusimport/request_handler.go

@@ -6,8 +6,8 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/common"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert/relabel"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prommetadata"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/prompb"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/prometheus/stream"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/protoparser/protoparserutil"
@@ -30,7 +30,7 @@ func InsertHandler(req *http.Request) error {
 		return err
 	}
 	encoding := req.Header.Get("Content-Encoding")
-	return stream.Parse(req.Body, defaultTimestamp, encoding, true, promscrape.IsMetadataEnabled(), func(rows []prometheus.Row, _ []prometheus.Metadata) error {
+	return stream.Parse(req.Body, defaultTimestamp, encoding, true, prommetadata.IsEnabled(), func(rows []prometheus.Row, _ []prometheus.Metadata) error {
 		return insertRows(rows, extraLabels)
 	}, func(s string) {
 		httpserver.LogError(req, s)

app/vmrestore/main.go

@@ -68,7 +68,7 @@ func main() {
 	if err := a.Run(ctx); err != nil {
 		logger.Fatalf("cannot restore from backup: %s", err)
 	}
-	pushmetrics.Stop()
+	pushmetrics.StopAndPush()
 	srcFS.MustStop()
 	dstFS.MustStop()
 

app/vmselect/graphite/eval.go

@@ -142,6 +142,12 @@ func (s *series) summarize(aggrFunc aggrFunc, startTime, endTime, step int64, xF
 }
 
 func execExpr(ec *evalConfig, query string) (nextSeriesFunc, error) {
+	// Validate query length to prevent memory exhaustion
+	maxLen := searchutil.GetMaxQueryLen()
+	if len(query) > maxLen {
+		return nil, fmt.Errorf("too long query; got %d bytes; mustn't exceed `-search.maxQueryLen=%d` bytes", len(query), maxLen)
+	}
+
 	expr, err := graphiteql.Parse(query)
 	if err != nil {
 		return nil, fmt.Errorf("cannot parse %q: %w", query, err)
@@ -191,13 +197,13 @@ func newNextSeriesForSearchQuery(ec *evalConfig, sq *storage.SearchQuery, expr g
 			}
 			s.summarize(aggrAvg, ec.startTime, ec.endTime, ec.storageStep, 0)
 			t := timerpool.Get(30 * time.Second)
+			defer timerpool.Put(t)
 			select {
 			case seriesCh <- s:
 			case <-t.C:
 				logger.Errorf("resource leak when processing the %s (full query: %s); please report this error to VictoriaMetrics developers",
 					expr.AppendString(nil), ec.originalQuery)
 			}
-			timerpool.Put(t)
 			return nil
 		})
 		close(seriesCh)

app/vmselect/graphite/eval_test.go

@@ -4070,6 +4070,9 @@ func TestExecExprFailure(t *testing.T) {
 
 	f(`holtWintersConfidenceArea(group(time("foo.baz",15),time("foo.baz",15)))`)
 	f(`holtWintersConfidenceArea()`)
+
+	// too long query
+	f(`sumSeries(` + strings.Repeat("metric.very.long.name.that.takes.space,", 500) + `metric.final)`)
 }
 
 func compareSeries(ss, ssExpected []*series, expr graphiteql.Expr) error {

app/vmselect/graphite/transform.go

@@ -1218,10 +1218,7 @@ func transformDelay(ec *evalConfig, fe *graphiteql.FuncExpr) (nextSeriesFunc, er
 		values := s.Values
 		stepsLocal := steps
 		if stepsLocal < 0 {
-			stepsLocal = -stepsLocal
-			if stepsLocal > len(values) {
-				stepsLocal = len(values)
-			}
+			stepsLocal = min(-stepsLocal, len(values))
 			copy(values, values[stepsLocal:])
 			for i := len(values) - 1; i >= len(values)-stepsLocal; i-- {
 				values[i] = nan
@@ -4663,20 +4660,14 @@ func transformSubstr(ec *evalConfig, fe *graphiteql.FuncExpr) (nextSeriesFunc, e
 		if start > len(splitName) {
 			start = len(splitName)
 		} else if start < 0 {
-			start = len(splitName) + start
-			if start < 0 {
-				start = 0
-			}
+			start = max(len(splitName)+start, 0)
 		}
 		if stop == 0 {
 			stop = len(splitName)
 		} else if stop > len(splitName) {
 			stop = len(splitName)
 		} else if stop < 0 {
-			stop = len(splitName) + stop
-			if stop < 0 {
-				stop = 0
-			}
+			stop = max(len(splitName)+stop, 0)
 		}
 		if stop < start {
 			stop = start

app/vmselect/main.go

@@ -2,6 +2,7 @@ package vmselect
 
 import (
 	"embed"
+	"encoding/json"
 	"flag"
 	"fmt"
 	"net/http"
@@ -10,6 +11,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/VictoriaMetrics/metrics"
+
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/graphite"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/netstorage"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/prometheus"
@@ -17,6 +20,7 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/searchutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/stats"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
@@ -26,7 +30,6 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/promscrape"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/querytracer"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/timerpool"
-	"github.com/VictoriaMetrics/metrics"
 )
 
 var (
@@ -48,13 +51,10 @@ var (
 var slowQueries = metrics.NewCounter(`vm_slow_queries_total`)
 
 func getDefaultMaxConcurrentRequests() int {
-	n := cgroup.AvailableCPUs() * 2
-	if n > 16 {
-		// A single request can saturate all the CPU cores, so there is no sense
-		// in allowing higher number of concurrent requests - they will just contend
-		// for unavailable CPU time.
-		n = 16
-	}
+	// A single request can saturate all the CPU cores, so there is no sense
+	// in allowing higher number of concurrent requests - they will just contend
+	// for unavailable CPU time.
+	n := min(cgroup.AvailableCPUs()*2, 16)
 	return n
 }
 
@@ -67,6 +67,7 @@ func Init() {
 	prometheus.InitMaxUniqueTimeseries(*maxConcurrentRequests)
 
 	concurrencyLimitCh = make(chan struct{}, *maxConcurrentRequests)
+	initVMUIConfig()
 	initVMAlertProxy()
 }
 
@@ -128,10 +129,7 @@ func RequestHandler(w http.ResponseWriter, r *http.Request) bool {
 	default:
 		// Sleep for a while until giving up. This should resolve short bursts in requests.
 		concurrencyLimitReached.Inc()
-		d := searchutil.GetMaxQueryDuration(r)
-		if d > *maxQueueDuration {
-			d = *maxQueueDuration
-		}
+		d := min(searchutil.GetMaxQueryDuration(r), *maxQueueDuration)
 		t := timerpool.Get(d)
 		select {
 		case concurrencyLimitCh <- struct{}{}:
@@ -460,6 +458,11 @@ func handleStaticAndSimpleRequests(w http.ResponseWriter, r *http.Request, path
 		return true
 	}
 	if strings.HasPrefix(path, "/vmui/") {
+		if path == "/vmui/config.json" {
+			w.Header().Set("Content-Type", "application/json")
+			fmt.Fprint(w, vmuiConfig)
+			return true
+		}
 		if strings.HasPrefix(path, "/vmui/static/") {
 			// Allow clients caching static contents for long period of time, since it shouldn't change over time.
 			// Path to static contents (such as js and css) must be changed whenever its contents is changed.
@@ -734,8 +737,40 @@ func proxyVMAlertRequests(w http.ResponseWriter, r *http.Request) {
 var (
 	vmalertProxyHost string
 	vmalertProxy     *nethttputil.ReverseProxy
+	vmuiConfig       string
 )
 
+func initVMUIConfig() {
+	var cfg struct {
+		Version string `json:"version"`
+		License struct {
+			Type string `json:"type"`
+		} `json:"license"`
+		VMAlert struct {
+			Enabled bool `json:"enabled"`
+		} `json:"vmalert"`
+	}
+	data, err := vmuiFiles.ReadFile("vmui/config.json")
+	if err != nil {
+		logger.Fatalf("cannot read vmui default config: %s", err)
+	}
+	err = json.Unmarshal(data, &cfg)
+	if err != nil {
+		logger.Fatalf("cannot parse vmui default config: %s", err)
+	}
+	cfg.Version = buildinfo.ShortVersion()
+	if cfg.Version == "" {
+		// buildinfo.ShortVersion() may return empty result for builds without tags
+		cfg.Version = buildinfo.Version
+	}
+	cfg.VMAlert.Enabled = len(*vmalertProxyURL) != 0
+	data, err = json.Marshal(&cfg)
+	if err != nil {
+		logger.Fatalf("cannot create vmui config: %s", err)
+	}
+	vmuiConfig = string(data)
+}
+
 // initVMAlertProxy must be called after flag.Parse(), since it uses command-line flags.
 func initVMAlertProxy() {
 	if len(*vmalertProxyURL) == 0 {

app/vmselect/netstorage/netstorage.go

@@ -15,6 +15,7 @@ import (
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/searchutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage"
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage/promdb"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
@@ -203,10 +204,7 @@ var defaultMaxWorkersPerQuery = func() int {
 	// for processing an average query, without significant impact on inter-CPU communications.
 	const maxWorkersLimit = 32
 
-	n := gomaxprocs
-	if n > maxWorkersLimit {
-		n = maxWorkersLimit
-	}
+	n := min(gomaxprocs, maxWorkersLimit)
 	return n
 }()
 
@@ -279,10 +277,7 @@ func (rss *Results) runParallel(qt *querytracer.Tracer, f func(rs *Result, worke
 	}
 
 	// Prepare worker channels.
-	workers := len(tsws)
-	if workers > maxWorkers {
-		workers = maxWorkers
-	}
+	workers := min(len(tsws), maxWorkers)
 	itemsPerWorker := (len(tsws) + workers - 1) / workers
 	workChs := make([]chan *timeseriesWork, workers)
 	for i := range workChs {
@@ -336,6 +331,12 @@ var (
 type packedTimeseries struct {
 	metricName string
 	brs        []blockRef
+	pd         *promData
+}
+
+type promData struct {
+	values     []float64
+	timestamps []int64
 }
 
 type unpackWork struct {
@@ -439,9 +440,21 @@ func (pts *packedTimeseries) Unpack(dst *Result, tbf *tmpBlocksFile, tr storage.
 		putSortBlocksHeap(sbh)
 		return err
 	}
-	dedupInterval := storage.GetDedupInterval()
+	if pts.pd != nil {
+		// Add data from Prometheus to dst.
+		// It usually has smaller timestamps than the data from sbs, so put it first.
+		dst.Values = append(dst.Values, pts.pd.values...)
+		dst.Timestamps = append(dst.Timestamps, pts.pd.timestamps...)
+	}
+	dedupInterval := storage.GetDedupInterval(tr.MinTimestamp)
 	mergeSortBlocks(dst, sbh, dedupInterval)
 	putSortBlocksHeap(sbh)
+	if pts.pd != nil {
+		if !sort.IsSorted(dst) {
+			sort.Sort(dst)
+		}
+		pts.pd = nil
+	}
 	return nil
 }
 
@@ -497,10 +510,7 @@ func (pts *packedTimeseries) unpackTo(dst []*sortBlock, tbf *tmpBlocksFile, tr s
 	}
 
 	// Prepare worker channels.
-	workers := len(upws)
-	if workers > gomaxprocs {
-		workers = gomaxprocs
-	}
+	workers := min(len(upws), gomaxprocs)
 	if workers < 1 {
 		workers = 1
 	}
@@ -558,6 +568,27 @@ func (pts *packedTimeseries) unpackTo(dst []*sortBlock, tbf *tmpBlocksFile, tr s
 	return dst, firstErr
 }
 
+// sort.Interface implementation for Result
+
+// Len implements sort.Interface
+func (r *Result) Len() int {
+	return len(r.Timestamps)
+}
+
+// Less implements sort.Interface
+func (r *Result) Less(i, j int) bool {
+	timestamps := r.Timestamps
+	return timestamps[i] < timestamps[j]
+}
+
+// Swap implements sort.Interface
+func (r *Result) Swap(i, j int) {
+	timestamps := r.Timestamps
+	values := r.Values
+	timestamps[i], timestamps[j] = timestamps[j], timestamps[i]
+	values[i], values[j] = values[j], values[i]
+}
+
 func getSortBlock() *sortBlock {
 	v := sbPool.Get()
 	if v == nil {
@@ -795,6 +826,15 @@ func LabelNames(qt *querytracer.Tracer, sq *storage.SearchQuery, maxLabelNames i
 	if err != nil {
 		return nil, fmt.Errorf("error during labels search on time range: %w", err)
 	}
+
+	// Merge labels obtained from Prometheus storage.
+	promLabels, err := promdb.GetLabelNamesOnTimeRange(tr, deadline)
+	if err != nil {
+		return nil, fmt.Errorf("cannot obtain labels from Prometheus storage: %w", err)
+	}
+	qt.Printf("get %d label names from Prometheus storage", len(promLabels))
+	labels = mergeStrings(labels, promLabels)
+
 	// Sort labels like Prometheus does
 	sort.Strings(labels)
 	qt.Printf("sort %d labels", len(labels))
@@ -866,14 +906,44 @@ func LabelValues(qt *querytracer.Tracer, labelName string, sq *storage.SearchQue
 	}
 	labelValues, err := vmstorage.SearchLabelValues(qt, labelName, tfss, tr, maxLabelValues, sq.MaxMetrics, deadline.Deadline())
 	if err != nil {
-		return nil, fmt.Errorf("error during label values search on time range for labelName=%q: %w", labelName, err)
+		return nil, fmt.Errorf("error during label values search on time range: %w", err)
 	}
+
+	// Merge label values obtained from Prometheus storage.
+	promLabelValues, err := promdb.GetLabelValuesOnTimeRange(labelName, tr, deadline)
+	if err != nil {
+		return nil, fmt.Errorf("cannot obtain label values on time range for %q from Prometheus storage: %w", labelName, err)
+	}
+	qt.Printf("get %d label values from Prometheus storage", len(promLabelValues))
+	labelValues = mergeStrings(labelValues, promLabelValues)
+
 	// Sort labelValues like Prometheus does
 	sort.Strings(labelValues)
 	qt.Printf("sort %d label values", len(labelValues))
 	return labelValues, nil
 }
 
+func mergeStrings(a, b []string) []string {
+	if len(a) == 0 {
+		return b
+	}
+	if len(b) == 0 {
+		return a
+	}
+	m := make(map[string]struct{}, len(a)+len(b))
+	for _, s := range a {
+		m[s] = struct{}{}
+	}
+	for _, s := range b {
+		m[s] = struct{}{}
+	}
+	result := make([]string, 0, len(m))
+	for s := range m {
+		result = append(result, s)
+	}
+	return result
+}
+
 // GraphiteTagValues returns tag values for the given tagName until the given deadline.
 func GraphiteTagValues(qt *querytracer.Tracer, tagName, filter string, limit int, deadline searchutil.Deadline) ([]string, error) {
 	qt = qt.NewChild("get graphite tag values for tagName=%s, filter=%s, limit=%d", tagName, filter, limit)
@@ -1153,10 +1223,7 @@ func ProcessSearchQuery(qt *querytracer.Tracer, sq *storage.SearchQuery, deadlin
 	// metricNamesBuf is used for holding all the loaded unique metric names at m and orderedMetricNames.
 	// It should reduce pressure on Go GC by reducing the number of string allocations
 	// when constructing metricName string from byte slice.
-	metricNamesBufCap := maxSeriesCount * 100
-	if metricNamesBufCap > maxFastAllocBlockSize {
-		metricNamesBufCap = maxFastAllocBlockSize
-	}
+	metricNamesBufCap := min(maxSeriesCount*100, maxFastAllocBlockSize)
 	metricNamesBuf := make([]byte, 0, metricNamesBufCap)
 
 	// brssPool is used for holding all the blockRefs objects across all the loaded time series.
@@ -1165,10 +1232,7 @@ func ProcessSearchQuery(qt *querytracer.Tracer, sq *storage.SearchQuery, deadlin
 
 	// brsPool is used for holding the most of blockRefs.brs slices across all the loaded time series.
 	// It should reduce pressure on Go GC by reducing the number of allocations for blockRefs.brs slices.
-	brsPoolCap := uintptr(maxSeriesCount)
-	if brsPoolCap > maxFastAllocBlockSize/unsafe.Sizeof(blockRef{}) {
-		brsPoolCap = maxFastAllocBlockSize / unsafe.Sizeof(blockRef{})
-	}
+	brsPoolCap := min(uintptr(maxSeriesCount), maxFastAllocBlockSize/unsafe.Sizeof(blockRef{}))
 	brsPool := make([]blockRef, 0, brsPoolCap)
 
 	// m maps from metricName to the index of blockRefs inside brssPool
@@ -1275,6 +1339,26 @@ func ProcessSearchQuery(qt *querytracer.Tracer, sq *storage.SearchQuery, deadlin
 	}
 	qt.Printf("fetch unique series=%d, blocks=%d, samples=%d, bytes=%d", len(m), blocksRead, samples, tbf.Len())
 
+	// Fetch data from promdb.
+	pm := make(map[string]*promData)
+	err = promdb.VisitSeries(sq, deadline, func(metricName []byte, values []float64, timestamps []int64) {
+		pd := pm[string(metricName)]
+		if pd == nil {
+			if _, ok := m[string(metricName)]; !ok {
+				orderedMetricNames = append(orderedMetricNames, string(metricName))
+			}
+			pd = &promData{}
+			pm[string(metricName)] = pd
+		}
+		pd.values = append(pd.values, values...)
+		pd.timestamps = append(pd.timestamps, timestamps...)
+	})
+	if err != nil {
+		putTmpBlocksFile(tbf)
+		putStorageSearch(sr)
+		return nil, fmt.Errorf("error when searching in Prometheus data: %w", err)
+	}
+
 	var rss Results
 	rss.tr = tr
 	rss.deadline = deadline
@@ -1283,6 +1367,7 @@ func ProcessSearchQuery(qt *querytracer.Tracer, sq *storage.SearchQuery, deadlin
 		pts[i] = packedTimeseries{
 			metricName: metricName,
 			brs:        brssPool[m[metricName]].brs,
+			pd:         pm[metricName],
 		}
 	}
 	rss.packedTimeseries = pts

app/vmselect/prometheus/prometheus.go

@@ -24,7 +24,6 @@ import (
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
-	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
@@ -38,7 +37,6 @@ var (
 	latencyOffset = flag.Duration("search.latencyOffset", time.Second*30, "The time when data points become visible in query results after the collection. "+
 		"It can be overridden on per-query basis via latency_offset arg. "+
 		"Too small value can result in incomplete last points for query results")
-	maxQueryLen = flagutil.NewBytes("search.maxQueryLen", 16*1024, "The maximum search query length in bytes")
 	maxLookback = flag.Duration("search.maxLookback", 0, "Synonym to -query.lookback-delta from Prometheus. "+
 		"The value is dynamically detected from interval between time series datapoints if not set. It can be overridden on per-query basis via max_lookback arg. "+
 		"See also '-search.maxStalenessInterval' flag, which has the same meaning due to historical reasons")
@@ -733,8 +731,9 @@ func QueryHandler(qt *querytracer.Tracer, startTime time.Time, w http.ResponseWr
 		step = defaultStep
 	}
 
-	if len(query) > maxQueryLen.IntN() {
-		return fmt.Errorf("too long query; got %d bytes; mustn't exceed `-search.maxQueryLen=%d` bytes", len(query), maxQueryLen.N)
+	maxLen := searchutil.GetMaxQueryLen()
+	if len(query) > maxLen {
+		return fmt.Errorf("too long query; got %d bytes; mustn't exceed `-search.maxQueryLen=%d` bytes", len(query), maxLen)
 	}
 	etfs, err := searchutil.GetExtraTagFilters(r)
 	if err != nil {
@@ -904,8 +903,9 @@ func queryRangeHandler(qt *querytracer.Tracer, startTime time.Time, w http.Respo
 	}
 
 	// Validate input args.
-	if len(query) > maxQueryLen.IntN() {
-		return fmt.Errorf("too long query; got %d bytes; mustn't exceed `-search.maxQueryLen=%d` bytes", len(query), maxQueryLen.N)
+	maxLen := searchutil.GetMaxQueryLen()
+	if len(query) > maxLen {
+		return fmt.Errorf("too long query; got %d bytes; mustn't exceed `-search.maxQueryLen=%d` bytes", len(query), maxLen)
 	}
 	if start > end {
 		end = start + defaultStep
@@ -1089,12 +1089,9 @@ func getRoundDigits(r *http.Request) int {
 }
 
 func getLatencyOffsetMilliseconds(r *http.Request) (int64, error) {
-	d := latencyOffset.Milliseconds()
-	if d < 0 {
-		// Zero latency offset may be useful for some use cases.
-		// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2061#issuecomment-1299109836
-		d = 0
-	}
+	// Zero latency offset may be useful for some use cases.
+	// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2061#issuecomment-1299109836
+	d := max(latencyOffset.Milliseconds(), 0)
 	return httputil.GetDuration(r, "latency_offset", d)
 }
 

app/vmselect/promql/aggr.go

@@ -161,11 +161,8 @@ func aggrFuncAny(afa *aggrFuncArg) ([]*timeseries, error) {
 	afe := func(tss []*timeseries, _ *metricsql.ModifierExpr) []*timeseries {
 		return tss[:1]
 	}
-	limit := afa.ae.Limit
-	if limit > 1 {
-		// Only a single time series per group must be returned
-		limit = 1
-	}
+	// Only a single time series per group must be returned
+	limit := min(afa.ae.Limit, 1)
 	return aggrFuncExt(afe, tss, &afa.ae.Modifier, limit, true)
 }
 

app/vmselect/promql/eval.go

@@ -1002,10 +1002,7 @@ func getKeepMetricNames(expr metricsql.Expr) bool {
 }
 
 func doParallel(tss []*timeseries, f func(ts *timeseries, values []float64, timestamps []int64, workerID uint) ([]float64, []int64)) {
-	workers := netstorage.MaxWorkers()
-	if workers > len(tss) {
-		workers = len(tss)
-	}
+	workers := min(netstorage.MaxWorkers(), len(tss))
 	seriesPerWorker := (len(tss) + workers - 1) / workers
 	workChs := make([]chan *timeseries, workers)
 	for i := range workChs {
@@ -1079,10 +1076,7 @@ func evalInstantRollup(qt *querytracer.Tracer, ec *EvalConfig, funcName string,
 		return evalRollupFuncNoCache(qt, ecCopy, funcName, rf, expr, me, iafc, window, pointsPerSeries)
 	}
 	tooBigOffset := func(offset int64) bool {
-		maxOffset := window / 2
-		if maxOffset > 1800*1000 {
-			maxOffset = 1800 * 1000
-		}
+		maxOffset := min(window/2, 1800*1000)
 		return offset >= maxOffset
 	}
 	deleteCachedSeries := func(qt *querytracer.Tracer) {
@@ -1156,15 +1150,23 @@ func evalInstantRollup(qt *querytracer.Tracer, ec *EvalConfig, funcName string,
 		}
 		qt.Printf("optimized calculation for instant rollup avg_over_time(m[d]) as (sum_over_time(m[d]) / count_over_time(m[d]))")
 		fe := expr.(*metricsql.FuncExpr)
-		feSum := *fe
-		feSum.Name = "sum_over_time"
-		feCount := *fe
-		feCount.Name = "count_over_time"
+		// copy RollupExpr to drop possible offset,
+		// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9762
+		newArg := copyRollupExpr(fe.Args[0].(*metricsql.RollupExpr))
+		newArg.Offset = nil
 		be := &metricsql.BinaryOpExpr{
 			Op:              "/",
 			KeepMetricNames: fe.KeepMetricNames,
-			Left:            &feSum,
-			Right:           &feCount,
+			Left: &metricsql.FuncExpr{
+				Name:            "sum_over_time",
+				Args:            []metricsql.Expr{newArg},
+				KeepMetricNames: fe.KeepMetricNames,
+			},
+			Right: &metricsql.FuncExpr{
+				Name:            "count_over_time",
+				Args:            []metricsql.Expr{newArg},
+				KeepMetricNames: fe.KeepMetricNames,
+			},
 		}
 		return evalExpr(qt, ec, be)
 	case "rate":
@@ -1178,8 +1180,12 @@ func evalInstantRollup(qt *querytracer.Tracer, ec *EvalConfig, funcName string,
 			fe := afe.Args[0].(*metricsql.FuncExpr)
 			feIncrease := *fe
 			feIncrease.Name = "increase"
-			re := fe.Args[0].(*metricsql.RollupExpr)
-			d := re.Window.Duration(ec.Step)
+			// copy RollupExpr to drop possible offset,
+			// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9762
+			newArg := copyRollupExpr(fe.Args[0].(*metricsql.RollupExpr))
+			newArg.Offset = nil
+			feIncrease.Args = []metricsql.Expr{newArg}
+			d := newArg.Window.Duration(ec.Step)
 			if d == 0 {
 				d = ec.Step
 			}
@@ -1199,8 +1205,12 @@ func evalInstantRollup(qt *querytracer.Tracer, ec *EvalConfig, funcName string,
 		fe := expr.(*metricsql.FuncExpr)
 		feIncrease := *fe
 		feIncrease.Name = "increase"
-		re := fe.Args[0].(*metricsql.RollupExpr)
-		d := re.Window.Duration(ec.Step)
+		// copy RollupExpr to drop possible offset,
+		// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/9762
+		newArg := copyRollupExpr(fe.Args[0].(*metricsql.RollupExpr))
+		newArg.Offset = nil
+		feIncrease.Args = []metricsql.Expr{newArg}
+		d := newArg.Window.Duration(ec.Step)
 		if d == 0 {
 			d = ec.Step
 		}
@@ -2005,3 +2015,23 @@ func dropStaleNaNs(funcName string, values []float64, timestamps []int64) ([]flo
 	}
 	return dstValues, dstTimestamps
 }
+
+func copyRollupExpr(re *metricsql.RollupExpr) *metricsql.RollupExpr {
+	var newRe metricsql.RollupExpr
+	newRe.Expr = re.Expr
+	newRe.InheritStep = re.InheritStep
+	newRe.At = re.At
+	if re.Window != nil {
+		newRe.Window = &metricsql.DurationExpr{}
+		*newRe.Window = *re.Window
+	}
+	if re.Offset != nil {
+		newRe.Offset = &metricsql.DurationExpr{}
+		*newRe.Offset = *re.Offset
+	}
+	if re.Step != nil {
+		newRe.Step = &metricsql.DurationExpr{}
+		*newRe.Step = *re.Step
+	}
+	return &newRe
+}

app/vmselect/promql/rollup.go

@@ -820,17 +820,11 @@ func seekFirstTimestampIdxAfter(timestamps []int64, seekTimestamp int64, nHint i
 	if len(timestamps) == 0 || timestamps[0] > seekTimestamp {
 		return 0
 	}
-	startIdx := nHint - 2
-	if startIdx < 0 {
-		startIdx = 0
-	}
+	startIdx := max(nHint-2, 0)
 	if startIdx >= len(timestamps) {
 		startIdx = len(timestamps) - 1
 	}
-	endIdx := nHint + 2
-	if endIdx > len(timestamps) {
-		endIdx = len(timestamps)
-	}
+	endIdx := min(nHint+2, len(timestamps))
 	if startIdx > 0 && timestamps[startIdx] <= seekTimestamp {
 		timestamps = timestamps[startIdx:]
 		endIdx -= startIdx

app/vmselect/searchutil/searchutil.go

@@ -7,10 +7,12 @@ import (
 	"strings"
 	"time"
 
+	"github.com/VictoriaMetrics/metricsql"
+
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/httputil"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
-	"github.com/VictoriaMetrics/metricsql"
 )
 
 var (
@@ -20,6 +22,7 @@ var (
 	maxStatusRequestDuration = flag.Duration("search.maxStatusRequestDuration", time.Minute*5, "The maximum duration for /api/v1/status/* requests")
 	maxLabelsAPIDuration     = flag.Duration("search.maxLabelsAPIDuration", time.Second*5, "The maximum duration for /api/v1/labels, /api/v1/label/.../values and /api/v1/series requests. "+
 		"See also -search.maxLabelsAPISeries and -search.ignoreExtraFiltersAtLabelsAPI")
+	maxQueryLen = flagutil.NewBytes("search.maxQueryLen", 16*1024, "The maximum search query length in bytes")
 )
 
 // GetMaxQueryDuration returns the maximum duration for query from r.
@@ -227,3 +230,8 @@ func toTagFilter(dst *storage.TagFilter, src *metricsql.LabelFilter) {
 	dst.IsRegexp = src.IsRegexp
 	dst.IsNegative = src.IsNegative
 }
+
+// GetMaxQueryLen returns the current value of the search.maxQueryLen flag.
+func GetMaxQueryLen() int {
+	return maxQueryLen.IntN()
+}

app/vmselect/vmui/assets/MetricsQL-CDnEXB9l.md

@@ -21,7 +21,7 @@ However, there are some [intentional differences](https://medium.com/@romanhavro
 
 [Standalone MetricsQL package](https://godoc.org/github.com/VictoriaMetrics/metricsql) can be used for parsing MetricsQL in external apps.
 
-If you are unfamiliar with PromQL, then it is suggested reading [this tutorial for beginners](https://medium.com/@valyala/promql-tutorial-for-beginners-9ab455142085)
+If you are unfamiliar with PromQL, we suggest reading [this tutorial for beginners](https://medium.com/@valyala/promql-tutorial-for-beginners-9ab455142085)
 and introduction into [basic querying via MetricsQL](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#metricsql).
 
 The following functionality is implemented differently in MetricsQL compared to PromQL. This improves user experience:
@@ -69,13 +69,13 @@ The list of MetricsQL features on top of PromQL:
   See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#selecting-graphite-metrics).
   VictoriaMetrics can be used as Graphite datasource in Grafana. See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#graphite-api-usage) for details.
   See also [label_graphite_group](#label_graphite_group) function, which can be used for extracting the given groups from Graphite metric name.
-* Lookbehind window in square brackets for [rollup functions](#rollup-functions) may be omitted. VictoriaMetrics automatically selects the lookbehind window
+* The lookbehind window in square brackets for [rollup functions](#rollup-functions) may be omitted. VictoriaMetrics automatically selects the lookbehind window
   depending on the `step` query arg passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query)
   and the real interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) (aka `scrape_interval`).
   For instance, the following query is valid in VictoriaMetrics: `rate(node_network_receive_bytes_total)`.
   It is roughly equivalent to `rate(node_network_receive_bytes_total[$__interval])` when used in Grafana.
   The difference is documented in [rate() docs](#rate).
-* Numeric values can contain `_` delimiters for better readability. For example, `1_234_567_890` can be used in queries instead of `1234567890`.
+* Numeric values may include underscore delimiters for better readability. For example, `1_234_567_890` can be used in queries instead of `1234567890`.
 * [Series selectors](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) accept multiple `or` filters. For example, `{env="prod",job="a" or env="dev",job="b"}`
   selects series with `{env="prod",job="a"}` or `{env="dev",job="b"}` labels.
   See [these docs](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering-by-multiple-or-filters) for details.
@@ -111,8 +111,8 @@ The list of MetricsQL features on top of PromQL:
 * Metric names and labels names may contain escaped chars. For example, `foo\-bar{baz\=aa="b"}` is valid expression.
   It returns time series with name `foo-bar` containing label `baz=aa` with value `b`.
   Additionally, the following escape sequences are supported:
-  - `\xXX`, where `XX` is hexadecimal representation of the escaped ascii char.
-  - `\uXXXX`, where `XXXX` is a hexadecimal representation of the escaped unicode char.
+  * `\xXX`, where `XX` is hexadecimal representation of the escaped ascii char.
+  * `\uXXXX`, where `XXXX` is a hexadecimal representation of the escaped unicode char.
 * Aggregate functions support optional `limit N` suffix in order to limit the number of output series.
   For example, `sum(x) by (y) limit 3` limits the number of output time series after the aggregation to 3.
   All the other time series are dropped.
@@ -123,7 +123,7 @@ The list of MetricsQL features on top of PromQL:
 * `if` binary operator. `q1 if q2` removes values from `q1` for missing values from `q2`.
 * `ifnot` binary operator. `q1 ifnot q2` removes values from `q1` for existing values from `q2`.
 * `WITH` templates. This feature simplifies writing and managing complex queries.
-  Go to [WITH templates playground](https://play.victoriametrics.com/select/accounting/1/6a716b0f-38bc-4856-90ce-448fd713e3fe/expand-with-exprs) and try it.
+  Go to [WITH templates playground](https://play.victoriametrics.com/select/0/prometheus/graph/#/expand-with-exprs) and try it.
 * String literals may be concatenated. This is useful with `WITH` templates:
   `WITH (commonPrefix="long_metric_prefix_") {__name__=commonPrefix+"suffix1"} / {__name__=commonPrefix+"suffix2"}`.
 * `keep_metric_names` modifier can be applied to all the [rollup functions](#rollup-functions), [transform functions](#transform-functions)
@@ -138,8 +138,9 @@ This may result in `duplicate time series` error when the function is applied to
 This error can be fixed by applying `keep_metric_names` modifier to the function or binary operator.
 
 For example:
-- `rate({__name__=~"foo|bar"}) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
-- `({__name__=~"foo|bar"} / 10) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
+
+* `rate({__name__=~"foo|bar"}) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
+* `({__name__=~"foo|bar"} / 10) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
 
 ## MetricsQL functions
 
@@ -166,10 +167,10 @@ Additional details:
 * If the given [series selector](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) returns multiple time series,
   then rollups are calculated individually per each returned series.
 * If lookbehind window in square brackets is missing, then it is automatically set to the following value:
-  - To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
+  * To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
     for all the [rollup functions](#rollup-functions) except of [default_rollup](#default_rollup) and [rate](#rate). This value is known as `$__interval` in Grafana or `1i` in MetricsQL.
     For example, `avg_over_time(temperature)` is automatically transformed to `avg_over_time(temperature[1i])`.
-  - To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
+  * To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
     for [default_rollup](#default_rollup) and [rate](#rate) functions. This allows avoiding unexpected gaps on the graph when `step` is smaller than `scrape_interval`.
 * Every [series selector](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) in MetricsQL must be wrapped into a rollup function.
   Otherwise, it is automatically wrapped into [default_rollup](#default_rollup). For example, `foo{bar="baz"}`
@@ -666,8 +667,9 @@ This function is usually applied to [gauges](https://docs.victoriametrics.com/vi
 
 `outlier_iqr_over_time(series_selector[d])` is a [rollup function](#rollup-functions), which returns the last sample on the given lookbehind window `d`
 if its value is either smaller than the `q25-1.5*iqr` or bigger than `q75+1.5*iqr` where:
-- `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`
-- `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`.
+
+* `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`
+* `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`.
 
 The `outlier_iqr_over_time()` is useful for detecting anomalies in gauge values based on the previous history of values.
 For example, `outlier_iqr_over_time(memory_usage_bytes[1h])` triggers when `memory_usage_bytes` suddenly goes outside the usual value range for the last hour.
@@ -759,7 +761,6 @@ This function is usually applied to [counters](https://docs.victoriametrics.com/
 
 See also [increase_prometheus](#increase_prometheus) and [rate](#rate).
 
-
 #### rate_over_sum
 
 `rate_over_sum(series_selector[d])` is a [rollup function](#rollup-functions), which calculates per-second rate over the sum of [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
@@ -1106,7 +1107,6 @@ This function is usually applied to [gauges](https://docs.victoriametrics.com/vi
 
 See also [zscore](#zscore), [range_trim_zscore](#range_trim_zscore) and [outlier_iqr_over_time](#outlier_iqr_over_time).
 
-
 ### Transform functions
 
 **Transform functions** calculate transformations over [rollup results](#rollup-functions).
@@ -1851,7 +1851,6 @@ The list of supported label manipulation functions:
 `alias(q, "name")` is [label manipulation function](#label-manipulation-functions), which sets the given `name` to all the time series returned by `q`.
 For example, `alias(up, "foobar")` would rename `up` series to `foobar` series.
 
-
 #### drop_common_labels
 
 `drop_common_labels(q1, ...., qN)` is [label manipulation function](#label-manipulation-functions), which drops common `label="value"` pairs
@@ -1877,7 +1876,7 @@ For example, `label_graphite_group({__graphite__="foo*.bar.*"}, 0, 2)` would sub
 
 This function is useful for aggregating Graphite metrics with [aggregate functions](#aggregate-functions). For example, the following query would return per-app memory usage:
 
-```
+```metricsql
 sum by (__name__) (
     label_graphite_group({__graphite__="app*.host*.memory_usage"}, 0)
 )
@@ -2003,7 +2002,6 @@ would return series in the following order of `bar` label values: `101`, `15`, `
 
 See also [sort_by_label_numeric](#sort_by_label_numeric) and [sort_by_label_desc](#sort_by_label_desc).
 
-
 ### Aggregate functions
 
 **Aggregate functions** calculate aggregates over groups of [rollup results](#rollup-functions).
@@ -2179,8 +2177,9 @@ per each `group_labels` for all the time series returned by `q`. The aggregate i
 `outliers_iqr(q)` is [aggregate function](#aggregate-functions), which returns time series from `q` with at least a single point
 outside e.g. [Interquartile range outlier bounds](https://en.wikipedia.org/wiki/Interquartile_range) `[q25-1.5*iqr .. q75+1.5*iqr]`
 comparing to other time series at the given point, where:
-- `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) calculated independently per each point on the graph across `q` series.
-- `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) calculated independently per each point on the graph across `q` series.
+
+* `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) calculated independently per each point on the graph across `q` series.
+* `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) calculated independently per each point on the graph across `q` series.
 
 The `outliers_iqr()` is useful for detecting anomalous series in the group of series. For example, `outliers_iqr(temperature) by (country)` returns
 per-country series with anomalous outlier values comparing to the rest of per-country series.
@@ -2349,10 +2348,10 @@ VictoriaMetrics performs subqueries in the following way:
 VictoriaMetrics performs the following implicit conversions for incoming queries before starting the calculations:
 
 * If lookbehind window in square brackets is missing inside [rollup function](#rollup-functions), then it is automatically set to the following value:
-  - To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
+  * To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
     for all the [rollup functions](#rollup-functions) except of [default_rollup](#default_rollup) and [rate](#rate). This value is known as `$__interval` in Grafana or `1i` in MetricsQL.
     For example, `avg_over_time(temperature)` is automatically transformed to `avg_over_time(temperature[1i])`.
-  - To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
+  * To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
     for [default_rollup](#default_rollup) and [rate](#rate) functions. This allows avoiding unexpected gaps on the graph when `step` is smaller than `scrape_interval`.
 * All the [series selectors](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering),
   which aren't wrapped into [rollup functions](#rollup-functions), are automatically wrapped into [default_rollup](#default_rollup) function.

app/vmselect/vmui/index.html

@@ -6,6 +6,7 @@
   <link rel="apple-touch-icon" href="./favicon.svg"/>
   <link rel="mask-icon" href="./favicon.svg" color="#000000">
 
+  <meta name="robots" content="noindex">
   <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=5"/>
   <meta name="theme-color" content="#000000"/>
   <meta name="description" content="Explore and troubleshoot your VictoriaMetrics data"/>
@@ -36,10 +37,10 @@
   <meta property="og:title" content="UI for VictoriaMetrics">
   <meta property="og:url" content="https://victoriametrics.com/">
   <meta property="og:description" content="Explore and troubleshoot your VictoriaMetrics data">
-  <script type="module" crossorigin src="./assets/index-Ck5nH8JI.js"></script>
-  <link rel="modulepreload" crossorigin href="./assets/vendor-BVRvRxZ2.js">
+  <script type="module" crossorigin src="./assets/index-DfyHQqg-.js"></script>
+  <link rel="modulepreload" crossorigin href="./assets/vendor-DY9kCvzk.js">
   <link rel="stylesheet" crossorigin href="./assets/vendor-D1GxaB_c.css">
-  <link rel="stylesheet" crossorigin href="./assets/index-BHg4iVVe.css">
+  <link rel="stylesheet" crossorigin href="./assets/index-Bhu7ieUw.css">
 </head>
 <body>
 <noscript>You need to enable JavaScript to run this app.</noscript>

app/vmstorage/main.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/VictoriaMetrics/metrics"
 
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage/promdb"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/fasttime"
 	"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
@@ -159,9 +160,11 @@ func Init(resetCacheIfNeeded func(mrs []storage.MetricRow)) {
 	// register storage metrics
 	storageMetrics = metrics.NewSet()
 	storageMetrics.RegisterMetricsWriter(func(w io.Writer) {
-		writeStorageMetrics(w, strg)
+		writeStorageMetrics(w, Storage)
 	})
 	metrics.RegisterSet(storageMetrics)
+
+	promdb.Init(retentionPeriod.Milliseconds())
 }
 
 var storageMetrics *metrics.Set
@@ -296,6 +299,7 @@ func Stop() {
 	logger.Infof("gracefully closing the storage at %s", *DataPath)
 	startTime := time.Now()
 	WG.WaitAndBlock()
+	promdb.MustClose()
 	stopStaleSnapshotsRemover()
 	Storage.MustClose()
 	logger.Infof("successfully closed the storage in %.3f seconds", time.Since(startTime).Seconds())
@@ -683,7 +687,7 @@ func writeStorageMetrics(w io.Writer, strg *storage.Storage) {
 	metrics.WriteCounterUint64(w, `vm_cache_eviction_bytes_total{type="storage/metricIDs", reason="miss_percentage"}`, m.MetricIDCacheMissEvictionBytes)
 	metrics.WriteCounterUint64(w, `vm_cache_eviction_bytes_total{type="storage/metricIDs", reason="expiration"}`, m.MetricIDCacheExpireEvictionBytes)
 
-	metrics.WriteCounterUint64(w, `vm_deleted_metrics_total{type="indexdb"}`, idbm.DeletedMetricsCount)
+	metrics.WriteCounterUint64(w, `vm_deleted_metrics_total{type="indexdb"}`, m.DeletedMetricsCount)
 
 	metrics.WriteCounterUint64(w, `vm_cache_collisions_total{type="storage/tsid"}`, m.TSIDCacheCollisions)
 	metrics.WriteCounterUint64(w, `vm_cache_collisions_total{type="storage/metricName"}`, m.MetricNameCacheCollisions)

app/vmstorage/promdb/promdb.go

@@ -0,0 +1,268 @@
+package promdb
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log/slog"
+	"time"
+
+	"github.com/oklog/ulid/v2"
+	"github.com/prometheus/prometheus/model/labels"
+	promstorage "github.com/prometheus/prometheus/storage"
+	"github.com/prometheus/prometheus/tsdb"
+	"github.com/prometheus/prometheus/tsdb/chunkenc"
+
+	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/searchutil"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
+	"github.com/VictoriaMetrics/VictoriaMetrics/lib/storage"
+)
+
+var prometheusDataPath = flag.String("prometheusDataPath", "", "Optional path to readonly historical Prometheus data")
+
+var prometheusRetentionMsecs int64
+
+// Init must be called after flag.Parse and before using the package.
+//
+// See also MustClose.
+func Init(retentionMsecs int64) {
+	if promDB != nil {
+		logger.Fatalf("BUG: promdb.Init is called multiple times without promdb.MustClose call")
+	}
+	prometheusRetentionMsecs = retentionMsecs
+	if *prometheusDataPath == "" {
+		return
+	}
+	l := slog.New(slog.Default().Handler())
+	opts := tsdb.DefaultOptions()
+	opts.RetentionDuration = retentionMsecs
+
+	// Set max block duration to 10% of retention period or 31 days
+	// according to https://prometheus.io/docs/prometheus/latest/storage/#compaction
+	maxBlockDuration := int64((31 * 24 * time.Hour) / time.Millisecond)
+	if maxBlockDuration > retentionMsecs/10 {
+		maxBlockDuration = retentionMsecs / 10
+	}
+	if maxBlockDuration < opts.MinBlockDuration {
+		maxBlockDuration = opts.MinBlockDuration
+	}
+	opts.MaxBlockDuration = maxBlockDuration
+
+	// Custom delete function is needed, because Prometheus by default doesn't delete
+	// blocks outside the retention if no new blocks are created with samples with the current timestamps.
+	// See https://github.com/prometheus/prometheus/blob/997bb7134fcfd7279f250e183e78681e48a56aff/tsdb/db.go#L1116
+	opts.BlocksToDelete = func(blocks []*tsdb.Block) map[ulid.ULID]struct{} {
+		m := make(map[ulid.ULID]struct{})
+		minRetentionTime := time.Now().Unix()*1000 - retentionMsecs
+		for _, block := range blocks {
+			meta := block.Meta()
+			// delete block marked for deletion by compaction code.
+			if meta.Compaction.Deletable {
+				m[meta.ULID] = struct{}{}
+				continue
+			}
+			if block.MaxTime() < minRetentionTime {
+				m[meta.ULID] = struct{}{}
+			}
+		}
+		return m
+	}
+	pdb, err := tsdb.Open(*prometheusDataPath, l, nil, opts, nil)
+	if err != nil {
+		logger.Panicf("FATAL: cannot open Prometheus data at -prometheusDataPath=%q: %s", *prometheusDataPath, err)
+	}
+	promDB = pdb
+	logger.Infof("successfully opened historical Prometheus data at -prometheusDataPath=%q with retentionMsecs=%d", *prometheusDataPath, retentionMsecs)
+}
+
+// MustClose must be called on graceful shutdown.
+//
+// Package functionality cannot be used after this call.
+func MustClose() {
+	if *prometheusDataPath == "" {
+		return
+	}
+	if promDB == nil {
+		logger.Panicf("BUG: promdb.MustClose is called without promdb.Init call")
+	}
+	if err := promDB.Close(); err != nil {
+		logger.Panicf("FATAL: cannot close promDB: %s", err)
+	}
+	promDB = nil
+	logger.Infof("successfully closed historical Prometheus data at -prometheusDataPath=%q", *prometheusDataPath)
+}
+
+var promDB *tsdb.DB
+
+// GetLabelNamesOnTimeRange returns label names.
+func GetLabelNamesOnTimeRange(tr storage.TimeRange, deadline searchutil.Deadline) ([]string, error) {
+	if *prometheusDataPath == "" {
+		return nil, nil
+	}
+	d := time.Unix(int64(deadline.Deadline()), 0)
+	ctx, cancel := context.WithDeadline(context.Background(), d)
+	defer cancel()
+	q, err := promDB.Querier(tr.MinTimestamp, tr.MaxTimestamp)
+	if err != nil {
+		return nil, err
+	}
+	defer mustCloseQuerier(q)
+
+	names, _, err := q.LabelNames(ctx, nil)
+	// Make full copy of names, since they cannot be used after q is closed.
+	names = copyStringsWithMemory(names)
+	return names, err
+}
+
+// GetLabelValuesOnTimeRange returns values for the given labelName on the given tr.
+func GetLabelValuesOnTimeRange(labelName string, tr storage.TimeRange, deadline searchutil.Deadline) ([]string, error) {
+	if *prometheusDataPath == "" {
+		return nil, nil
+	}
+	d := time.Unix(int64(deadline.Deadline()), 0)
+	ctx, cancel := context.WithDeadline(context.Background(), d)
+	defer cancel()
+	q, err := promDB.Querier(tr.MinTimestamp, tr.MaxTimestamp)
+	if err != nil {
+		return nil, err
+	}
+	defer mustCloseQuerier(q)
+
+	values, _, err := q.LabelValues(ctx, labelName, nil)
+	// Make full copy of values, since they cannot be used after q is closed.
+	values = copyStringsWithMemory(values)
+	return values, err
+}
+
+func copyStringsWithMemory(a []string) []string {
+	result := make([]string, len(a))
+	for i, s := range a {
+		result[i] = string(append([]byte{}, s...))
+	}
+	return result
+}
+
+// SeriesVisitor is called by VisitSeries for each matching time series.
+//
+// The caller shouldn't hold references to metricName, values and timestamps after returning.
+type SeriesVisitor func(metricName []byte, values []float64, timestamps []int64)
+
+// VisitSeries calls f for each series found in the pdb.
+func VisitSeries(sq *storage.SearchQuery, deadline searchutil.Deadline, f SeriesVisitor) error {
+	if *prometheusDataPath == "" {
+		return nil
+	}
+	d := time.Unix(int64(deadline.Deadline()), 0)
+	ctx, cancel := context.WithDeadline(context.Background(), d)
+	defer cancel()
+	minTime, maxTime := getSearchTimeRange(sq)
+	q, err := promDB.Querier(minTime, maxTime)
+	if err != nil {
+		return err
+	}
+	defer mustCloseQuerier(q)
+	var seriesSet []promstorage.SeriesSet
+	for _, tf := range sq.TagFilterss {
+		ms, err := convertTagFiltersToMatchers(tf)
+		if err != nil {
+			return fmt.Errorf("cannot convert tag filters to matchers: %w", err)
+		}
+		s := q.Select(ctx, false, nil, ms...)
+		seriesSet = append(seriesSet, s)
+	}
+	ss := promstorage.NewMergeSeriesSet(seriesSet, 0, promstorage.ChainedSeriesMerge)
+	var (
+		mn         storage.MetricName
+		metricName []byte
+		values     []float64
+		timestamps []int64
+	)
+	var it chunkenc.Iterator
+	for ss.Next() {
+		s := ss.At()
+		convertPromLabelsToMetricName(&mn, s.Labels())
+		metricName = mn.SortAndMarshal(metricName[:0])
+		values = values[:0]
+		timestamps = timestamps[:0]
+		it = s.Iterator(it)
+		for {
+			typ := it.Next()
+			if typ == chunkenc.ValNone {
+				break
+			}
+			if typ != chunkenc.ValFloat {
+				// Skip unsupported values
+				continue
+			}
+			ts, v := it.At()
+			values = append(values, v)
+			timestamps = append(timestamps, ts)
+		}
+		if err := it.Err(); err != nil {
+			return fmt.Errorf("error when iterating Prometheus series: %w", err)
+		}
+		f(metricName, values, timestamps)
+	}
+	return ss.Err()
+}
+
+func getSearchTimeRange(sq *storage.SearchQuery) (int64, int64) {
+	maxTime := sq.MaxTimestamp
+	minTime := sq.MinTimestamp
+	minRetentionTime := time.Now().Unix()*1000 - prometheusRetentionMsecs
+	if maxTime < minRetentionTime {
+		maxTime = minRetentionTime
+	}
+	if minTime < minRetentionTime {
+		minTime = minRetentionTime
+	}
+	return minTime, maxTime
+}
+
+func convertPromLabelsToMetricName(dst *storage.MetricName, labels []labels.Label) {
+	dst.Reset()
+	for _, label := range labels {
+		if label.Name == "__name__" {
+			dst.MetricGroup = append(dst.MetricGroup[:0], label.Value...)
+		} else {
+			dst.AddTag(label.Name, label.Value)
+		}
+	}
+}
+
+func convertTagFiltersToMatchers(tfs []storage.TagFilter) ([]*labels.Matcher, error) {
+	ms := make([]*labels.Matcher, 0, len(tfs))
+	for _, tf := range tfs {
+		var mt labels.MatchType
+		if tf.IsNegative {
+			if tf.IsRegexp {
+				mt = labels.MatchNotRegexp
+			} else {
+				mt = labels.MatchNotEqual
+			}
+		} else {
+			if tf.IsRegexp {
+				mt = labels.MatchRegexp
+			} else {
+				mt = labels.MatchEqual
+			}
+		}
+		key := string(tf.Key)
+		if key == "" {
+			key = "__name__"
+		}
+		value := string(tf.Value)
+		m, err := labels.NewMatcher(mt, key, value)
+		if err != nil {
+			return nil, err
+		}
+		ms = append(ms, m)
+	}
+	return ms, nil
+}
+
+func mustCloseQuerier(q promstorage.Querier) {
+	if err := q.Close(); err != nil {
+		logger.Panicf("FATAL: cannot close querier: %s", err)
+	}
+}

app/vmui/Dockerfile-build

@@ -1,4 +1,4 @@
-FROM node:20-alpine3.19
+FROM node:22-alpine3.22
 
 # Sets a custom location for the npm cache, preventing access errors in system directories
 ENV NPM_CONFIG_CACHE=/build/.npm

app/vmui/Dockerfile-web

@@ -1,4 +1,4 @@
-FROM golang:1.25.0 AS build-web-stage
+FROM golang:1.25.1 AS build-web-stage
 COPY build /build
 
 WORKDIR /build

app/vmui/packages/vmui/index.html

@@ -6,6 +6,7 @@
   <link rel="apple-touch-icon" href="/favicon.svg"/>
   <link rel="mask-icon" href="/favicon.svg" color="#000000">
 
+  <meta name="robots" content="noindex">
   <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=5"/>
   <meta name="theme-color" content="#000000"/>
   <meta name="description" content="Explore and troubleshoot your VictoriaMetrics data"/>

app/vmui/packages/vmui/package-lock.json

@@ -17,7 +17,7 @@
         "react-input-mask": "^2.0.4",
         "react-router-dom": "^7.6.3",
         "uplot": "^1.6.32",
-        "vite": "^7.0.4",
+        "vite": "^7.1.5",
         "web-vitals": "^5.0.3"
       },
       "devDependencies": {
@@ -1177,7 +1177,7 @@
       "version": "0.3.12",
       "resolved": "https://registry.npmjs.org/@jridgewell/gen-mapping/-/gen-mapping-0.3.12.tgz",
       "integrity": "sha512-OuLGC46TjB5BbN1dH8JULVVZY4WTdkF7tV9Ys6wLL1rubZnCMstOhNHueU5bLCrnRuDhKPDM4g6sw4Bel5Gzqg==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "dependencies": {
         "@jridgewell/sourcemap-codec": "^1.5.0",
@@ -1188,24 +1188,36 @@
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/@jridgewell/resolve-uri/-/resolve-uri-3.1.2.tgz",
       "integrity": "sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "engines": {
         "node": ">=6.0.0"
       }
     },
+    "node_modules/@jridgewell/source-map": {
+      "version": "0.3.10",
+      "resolved": "https://registry.npmjs.org/@jridgewell/source-map/-/source-map-0.3.10.tgz",
+      "integrity": "sha512-0pPkgz9dY+bijgistcTTJ5mR+ocqRXLuhXHYdzoMmmoJ2C9S46RCm2GMUbatPEUK9Yjy26IrAy8D/M00lLkv+Q==",
+      "license": "MIT",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "@jridgewell/gen-mapping": "^0.3.5",
+        "@jridgewell/trace-mapping": "^0.3.25"
+      }
+    },
     "node_modules/@jridgewell/sourcemap-codec": {
       "version": "1.5.4",
       "resolved": "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.5.4.tgz",
       "integrity": "sha512-VT2+G1VQs/9oz078bLrYbecdZKs912zQlkelYpuf+SXF+QvZDYJlbx/LSx+meSAwdDFnF8FVXW92AVjjkVmgFw==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT"
     },
     "node_modules/@jridgewell/trace-mapping": {
       "version": "0.3.29",
       "resolved": "https://registry.npmjs.org/@jridgewell/trace-mapping/-/trace-mapping-0.3.29.tgz",
       "integrity": "sha512-uw6guiW/gcAGPDhLmd77/6lW8QLeiV5RUTsAX46Db6oLhGaVj4lhnPwb184s1bkc8kdVg/+h988dro8GRDpmYQ==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "dependencies": {
         "@jridgewell/resolve-uri": "^3.1.0",
@@ -1250,6 +1262,316 @@
         "node": ">= 8"
       }
     },
+    "node_modules/@parcel/watcher": {
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/@parcel/watcher/-/watcher-2.5.1.tgz",
+      "integrity": "sha512-dfUnCxiN9H4ap84DvD2ubjw+3vUNpstxa0TneY/Paat8a3R4uQZDLSvWjmznAY/DoahqTHl9V46HF/Zs3F29pg==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "detect-libc": "^1.0.3",
+        "is-glob": "^4.0.3",
+        "micromatch": "^4.0.5",
+        "node-addon-api": "^7.0.0"
+      },
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@@ -6054,6 +6446,28 @@
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       "license": "MIT"
     },
+    "node_modules/sass": {
+      "version": "1.89.2",
+      "resolved": "https://registry.npmjs.org/sass/-/sass-1.89.2.tgz",
+      "integrity": "sha512-xCmtksBKd/jdJ9Bt9p7nPKiuqrlBMBuuGkQlkhZjjQk3Ty48lv93k5Dq6OPkKt4XwxDJ7tvlfrTa1MPA9bf+QA==",
+      "license": "MIT",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "chokidar": "^4.0.0",
+        "immutable": "^5.0.2",
+        "source-map-js": ">=0.6.2 <2.0.0"
+      },
+      "bin": {
+        "sass": "sass.js"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "optionalDependencies": {
+        "@parcel/watcher": "^2.4.1"
+      }
+    },
     "node_modules/sass-embedded": {
       "version": "1.89.2",
       "resolved": "https://registry.npmjs.org/sass-embedded/-/sass-embedded-1.89.2.tgz",
@@ -6583,6 +6997,29 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/source-map-support": {
+      "version": "0.5.21",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.21.tgz",
+      "integrity": "sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==",
+      "license": "MIT",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "buffer-from": "^1.0.0",
+        "source-map": "^0.6.0"
+      }
+    },
+    "node_modules/source-map-support/node_modules/source-map": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+      "license": "BSD-3-Clause",
+      "optional": true,
+      "peer": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/stack-trace": {
       "version": "1.0.0-pre2",
       "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-1.0.0-pre2.tgz",
@@ -6849,6 +7286,26 @@
         "node": ">=16.0.0"
       }
     },
+    "node_modules/terser": {
+      "version": "5.43.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-5.43.1.tgz",
+      "integrity": "sha512-+6erLbBm0+LROX2sPXlUYx/ux5PyE9K/a92Wrt6oA+WDAoFTdpHE5tCYCI5PNzq2y8df4rA+QgHLJuR4jNymsg==",
+      "license": "BSD-2-Clause",
+      "optional": true,
+      "peer": true,
+      "dependencies": {
+        "@jridgewell/source-map": "^0.3.3",
+        "acorn": "^8.14.0",
+        "commander": "^2.20.0",
+        "source-map-support": "~0.5.20"
+      },
+      "bin": {
+        "terser": "bin/terser"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/tinybench": {
       "version": "2.9.0",
       "resolved": "https://registry.npmjs.org/tinybench/-/tinybench-2.9.0.tgz",
@@ -6864,13 +7321,13 @@
       "license": "MIT"
     },
     "node_modules/tinyglobby": {
-      "version": "0.2.14",
-      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.14.tgz",
-      "integrity": "sha512-tX5e7OM1HnYr2+a2C/4V0htOcSQcoSTH9KgJnVvNm5zm/cyEWKJ7j7YutsH9CxMdtOkkLFy2AHrMci9IM8IPZQ==",
+      "version": "0.2.15",
+      "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",
+      "integrity": "sha512-j2Zq4NyQYG5XMST4cbs02Ak8iJUdxRM0XI5QyxXuZOzKOINmWurp3smXu3y5wDcJrptwpSjgXHzIQxR0omXljQ==",
       "license": "MIT",
       "dependencies": {
-        "fdir": "^6.4.4",
-        "picomatch": "^4.0.2"
+        "fdir": "^6.5.0",
+        "picomatch": "^4.0.3"
       },
       "engines": {
         "node": ">=12.0.0"
@@ -6880,10 +7337,13 @@
       }
     },
     "node_modules/tinyglobby/node_modules/fdir": {
-      "version": "6.4.6",
-      "resolved": "https://registry.npmjs.org/fdir/-/fdir-6.4.6.tgz",
-      "integrity": "sha512-hiFoqpyZcfNm1yc4u8oWCf9A2c4D3QjCrks3zmoVKVxpQRzmPNar1hUJcBG2RQHvEVGDN+Jm81ZheVLAQMK6+w==",
+      "version": "6.5.0",
+      "resolved": "https://registry.npmjs.org/fdir/-/fdir-6.5.0.tgz",
+      "integrity": "sha512-tIbYtZbucOs0BRGqPJkshJUYdL+SDH7dVM8gjy+ERp3WAUjLEFJE+02kanyHtwjWOnwrKYBiwAmM0p4kLJAnXg==",
       "license": "MIT",
+      "engines": {
+        "node": ">=12.0.0"
+      },
       "peerDependencies": {
         "picomatch": "^3 || ^4"
       },
@@ -6894,9 +7354,9 @@
       }
     },
     "node_modules/tinyglobby/node_modules/picomatch": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.2.tgz",
-      "integrity": "sha512-M7BAV6Rlcy5u+m6oPhAPFgJTzAioX/6B0DxyvDlo9l8+T3nLKbrczg2WLUyzd45L8RqfUMyGPzekbMvX2Ldkwg==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
+      "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "license": "MIT",
       "engines": {
         "node": ">=12"
@@ -6959,7 +7419,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "dependencies": {
         "is-number": "^7.0.0"
@@ -7200,17 +7660,17 @@
       "license": "MIT"
     },
     "node_modules/vite": {
-      "version": "7.0.4",
-      "resolved": "https://registry.npmjs.org/vite/-/vite-7.0.4.tgz",
-      "integrity": "sha512-SkaSguuS7nnmV7mfJ8l81JGBFV7Gvzp8IzgE8A8t23+AxuNX61Q5H1Tpz5efduSN7NHC8nQXD3sKQKZAu5mNEA==",
+      "version": "7.1.5",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-7.1.5.tgz",
+      "integrity": "sha512-4cKBO9wR75r0BeIWWWId9XK9Lj6La5X846Zw9dFfzMRw38IlTk2iCcUt6hsyiDRcPidc55ZParFYDXi0nXOeLQ==",
       "license": "MIT",
       "dependencies": {
         "esbuild": "^0.25.0",
-        "fdir": "^6.4.6",
-        "picomatch": "^4.0.2",
+        "fdir": "^6.5.0",
+        "picomatch": "^4.0.3",
         "postcss": "^8.5.6",
-        "rollup": "^4.40.0",
-        "tinyglobby": "^0.2.14"
+        "rollup": "^4.43.0",
+        "tinyglobby": "^0.2.15"
       },
       "bin": {
         "vite": "bin/vite.js"
@@ -7315,10 +7775,13 @@
       }
     },
     "node_modules/vite/node_modules/fdir": {
-      "version": "6.4.6",
-      "resolved": "https://registry.npmjs.org/fdir/-/fdir-6.4.6.tgz",
-      "integrity": "sha512-hiFoqpyZcfNm1yc4u8oWCf9A2c4D3QjCrks3zmoVKVxpQRzmPNar1hUJcBG2RQHvEVGDN+Jm81ZheVLAQMK6+w==",
+      "version": "6.5.0",
+      "resolved": "https://registry.npmjs.org/fdir/-/fdir-6.5.0.tgz",
+      "integrity": "sha512-tIbYtZbucOs0BRGqPJkshJUYdL+SDH7dVM8gjy+ERp3WAUjLEFJE+02kanyHtwjWOnwrKYBiwAmM0p4kLJAnXg==",
       "license": "MIT",
+      "engines": {
+        "node": ">=12.0.0"
+      },
       "peerDependencies": {
         "picomatch": "^3 || ^4"
       },
@@ -7329,9 +7792,9 @@
       }
     },
     "node_modules/vite/node_modules/picomatch": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.2.tgz",
-      "integrity": "sha512-M7BAV6Rlcy5u+m6oPhAPFgJTzAioX/6B0DxyvDlo9l8+T3nLKbrczg2WLUyzd45L8RqfUMyGPzekbMvX2Ldkwg==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
+      "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "license": "MIT",
       "engines": {
         "node": ">=12"

app/vmui/packages/vmui/package.json

@@ -29,7 +29,7 @@
     "react-input-mask": "^2.0.4",
     "react-router-dom": "^7.6.3",
     "uplot": "^1.6.32",
-    "vite": "^7.0.4",
+    "vite": "^7.1.5",
     "web-vitals": "^5.0.3"
   },
   "devDependencies": {

app/vmui/packages/vmui/src/App.tsx

@@ -18,84 +18,96 @@ import QueryAnalyzer from "./pages/QueryAnalyzer";
 import DownsamplingFilters from "./pages/DownsamplingFilters";
 import RetentionFilters from "./pages/RetentionFilters";
 import RawQueryPage from "./pages/RawQueryPage";
+import ExploreRules from "./pages/ExploreAlerts/ExploreRules";
+import ExploreNotifiers from "./pages/ExploreAlerts/ExploreNotifiers";
 
 const App: FC = () => {
   const [loadedTheme, setLoadedTheme] = useState(false);
 
-  return <>
-    <HashRouter>
-      <AppContextProvider>
-        <>
-          <ThemeProvider onLoaded={setLoadedTheme}/>
-          {loadedTheme && (
-            <Routes>
-              <Route
-                path={"/"}
-                element={<MainLayout/>}
-              >
+  return (
+    <>
+      <HashRouter>
+        <AppContextProvider>
+          <>
+            <ThemeProvider onLoaded={setLoadedTheme} />
+            {loadedTheme && (
+              <Routes>
                 <Route
-                  path={router.home}
-                  element={<CustomPanel/>}
-                />
-                <Route
-                  path={router.rawQuery}
-                  element={<RawQueryPage/>}
-                />
-                <Route
-                  path={router.metrics}
-                  element={<ExploreMetrics/>}
-                />
-                <Route
-                  path={router.cardinality}
-                  element={<CardinalityPanel/>}
-                />
-                <Route
-                  path={router.topQueries}
-                  element={<TopQueries/>}
-                />
-                <Route
-                  path={router.trace}
-                  element={<TracePage/>}
-                />
-                <Route
-                  path={router.queryAnalyzer}
-                  element={<QueryAnalyzer/>}
-                />
-                <Route
-                  path={router.dashboards}
-                  element={<DashboardsLayout/>}
-                />
-                <Route
-                  path={router.withTemplate}
-                  element={<WithTemplate/>}
-                />
-                <Route
-                  path={router.relabel}
-                  element={<Relabel/>}
-                />
-                <Route
-                  path={router.activeQueries}
-                  element={<ActiveQueries/>}
-                />
-                <Route
-                  path={router.icons}
-                  element={<PreviewIcons/>}
-                />
-                <Route
-                  path={router.downsamplingDebug}
-                  element={<DownsamplingFilters/>}
-                />
-                <Route
-                  path={router.retentionDebug}
-                  element={<RetentionFilters/>}
-                />
-              </Route>
-            </Routes>
-          )}
-        </>
-      </AppContextProvider>
-    </HashRouter>
-  </>;
+                  path={"/"}
+                  element={<MainLayout />}
+                >
+                  <Route
+                    path={router.home}
+                    element={<CustomPanel />}
+                  />
+                  <Route
+                    path={router.rawQuery}
+                    element={<RawQueryPage />}
+                  />
+                  <Route
+                    path={router.metrics}
+                    element={<ExploreMetrics />}
+                  />
+                  <Route
+                    path={router.cardinality}
+                    element={<CardinalityPanel />}
+                  />
+                  <Route
+                    path={router.topQueries}
+                    element={<TopQueries />}
+                  />
+                  <Route
+                    path={router.trace}
+                    element={<TracePage />}
+                  />
+                  <Route
+                    path={router.queryAnalyzer}
+                    element={<QueryAnalyzer />}
+                  />
+                  <Route
+                    path={router.dashboards}
+                    element={<DashboardsLayout />}
+                  />
+                  <Route
+                    path={router.withTemplate}
+                    element={<WithTemplate />}
+                  />
+                  <Route
+                    path={router.relabel}
+                    element={<Relabel />}
+                  />
+                  <Route
+                    path={router.activeQueries}
+                    element={<ActiveQueries />}
+                  />
+                  <Route
+                    path={router.icons}
+                    element={<PreviewIcons />}
+                  />
+                  <Route
+                    path={router.downsamplingDebug}
+                    element={<DownsamplingFilters />}
+                  />
+                  <Route
+                    path={router.retentionDebug}
+                    element={<RetentionFilters />}
+                  />
+                  <Route
+                    path={router.rules}
+                    element={<ExploreRules />}
+                  />
+                  <Route
+                    path={router.notifiers}
+                    element={<ExploreNotifiers />}
+                  />
+                </Route>
+              </Routes>
+            )}
+          </>
+        </AppContextProvider>
+      </HashRouter>
+    </>
+  );
 };
 
 export default App;

app/vmui/packages/vmui/src/api/accountId.ts

@@ -1,2 +1,2 @@
-export const getAccountIds = (server: string) =>
-  `${server.replace(/^(.+)(\/select.+)/, "$1")}/admin/tenants`;
+import { getUrlWithoutTenant } from "../utils/tenants";
+export const getAccountIds = (server: string) => `${getUrlWithoutTenant(server)}/admin/tenants`;

app/vmui/packages/vmui/src/api/explore-alerts.ts

@@ -0,0 +1,23 @@
+export const getGroupsUrl = (server: string): string => {
+  return `${server}/vmalert/api/v1/rules?datasource_type=prometheus`;
+};
+
+export const getItemUrl = (
+  server: string,
+  groupId: string,
+  id: string,
+  mode: string,
+): string => {
+  return `${server}/vmalert/api/v1/${mode}?group_id=${groupId}&${mode}_id=${id}`;
+};
+
+export const getGroupUrl = (
+  server: string,
+  id: string,
+): string => {
+  return `${server}/vmalert/api/v1/group?group_id=${id}`;
+};
+
+export const getNotifiersUrl = (server: string): string => {
+  return `${server}/vmalert/api/v1/notifiers`;
+};

app/vmui/packages/vmui/src/api/query-range.ts

@@ -15,3 +15,24 @@ export const getExportDataUrl = (server: string, query: string, period: TimePara
   if (reduceMemUsage) params.set("reduce_mem_usage", "1");
   return `${server}/api/v1/export?${params}`;
 };
+
+export const getExportCSVDataUrl = (server: string, query: string[], period: TimeParams, reduceMemUsage: boolean): string => {
+  const params = new URLSearchParams({
+    start: period.start.toString(),
+    end: period.end.toString(),
+    format: "__name__,__value__,__timestamp__:unix_ms",
+  });
+  query.forEach((q => params.append("match[]", q)));
+  if (reduceMemUsage) params.set("reduce_mem_usage", "1");
+  return `${server}/api/v1/export/csv?${params}`;
+};
+
+export const getExportJSONDataUrl = (server: string, query: string[], period: TimeParams, reduceMemUsage: boolean): string => {
+  const params = new URLSearchParams({
+    start: period.start.toString(),
+    end: period.end.toString(),
+  });
+  query.forEach((q => params.append("match[]", q)));
+  if (reduceMemUsage) params.set("reduce_mem_usage", "1");
+  return `${server}/api/v1/export?${params}`;
+};

app/vmui/packages/vmui/src/assets/MetricsQL.md

@@ -21,7 +21,7 @@ However, there are some [intentional differences](https://medium.com/@romanhavro
 
 [Standalone MetricsQL package](https://godoc.org/github.com/VictoriaMetrics/metricsql) can be used for parsing MetricsQL in external apps.
 
-If you are unfamiliar with PromQL, then it is suggested reading [this tutorial for beginners](https://medium.com/@valyala/promql-tutorial-for-beginners-9ab455142085)
+If you are unfamiliar with PromQL, we suggest reading [this tutorial for beginners](https://medium.com/@valyala/promql-tutorial-for-beginners-9ab455142085)
 and introduction into [basic querying via MetricsQL](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#metricsql).
 
 The following functionality is implemented differently in MetricsQL compared to PromQL. This improves user experience:
@@ -69,13 +69,13 @@ The list of MetricsQL features on top of PromQL:
   See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#selecting-graphite-metrics).
   VictoriaMetrics can be used as Graphite datasource in Grafana. See [these docs](https://docs.victoriametrics.com/victoriametrics/integrations/graphite/#graphite-api-usage) for details.
   See also [label_graphite_group](#label_graphite_group) function, which can be used for extracting the given groups from Graphite metric name.
-* Lookbehind window in square brackets for [rollup functions](#rollup-functions) may be omitted. VictoriaMetrics automatically selects the lookbehind window
+* The lookbehind window in square brackets for [rollup functions](#rollup-functions) may be omitted. VictoriaMetrics automatically selects the lookbehind window
   depending on the `step` query arg passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query)
   and the real interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) (aka `scrape_interval`).
   For instance, the following query is valid in VictoriaMetrics: `rate(node_network_receive_bytes_total)`.
   It is roughly equivalent to `rate(node_network_receive_bytes_total[$__interval])` when used in Grafana.
   The difference is documented in [rate() docs](#rate).
-* Numeric values can contain `_` delimiters for better readability. For example, `1_234_567_890` can be used in queries instead of `1234567890`.
+* Numeric values may include underscore delimiters for better readability. For example, `1_234_567_890` can be used in queries instead of `1234567890`.
 * [Series selectors](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) accept multiple `or` filters. For example, `{env="prod",job="a" or env="dev",job="b"}`
   selects series with `{env="prod",job="a"}` or `{env="dev",job="b"}` labels.
   See [these docs](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering-by-multiple-or-filters) for details.
@@ -111,8 +111,8 @@ The list of MetricsQL features on top of PromQL:
 * Metric names and labels names may contain escaped chars. For example, `foo\-bar{baz\=aa="b"}` is valid expression.
   It returns time series with name `foo-bar` containing label `baz=aa` with value `b`.
   Additionally, the following escape sequences are supported:
-  - `\xXX`, where `XX` is hexadecimal representation of the escaped ascii char.
-  - `\uXXXX`, where `XXXX` is a hexadecimal representation of the escaped unicode char.
+  * `\xXX`, where `XX` is hexadecimal representation of the escaped ascii char.
+  * `\uXXXX`, where `XXXX` is a hexadecimal representation of the escaped unicode char.
 * Aggregate functions support optional `limit N` suffix in order to limit the number of output series.
   For example, `sum(x) by (y) limit 3` limits the number of output time series after the aggregation to 3.
   All the other time series are dropped.
@@ -123,7 +123,7 @@ The list of MetricsQL features on top of PromQL:
 * `if` binary operator. `q1 if q2` removes values from `q1` for missing values from `q2`.
 * `ifnot` binary operator. `q1 ifnot q2` removes values from `q1` for existing values from `q2`.
 * `WITH` templates. This feature simplifies writing and managing complex queries.
-  Go to [WITH templates playground](https://play.victoriametrics.com/select/accounting/1/6a716b0f-38bc-4856-90ce-448fd713e3fe/expand-with-exprs) and try it.
+  Go to [WITH templates playground](https://play.victoriametrics.com/select/0/prometheus/graph/#/expand-with-exprs) and try it.
 * String literals may be concatenated. This is useful with `WITH` templates:
   `WITH (commonPrefix="long_metric_prefix_") {__name__=commonPrefix+"suffix1"} / {__name__=commonPrefix+"suffix2"}`.
 * `keep_metric_names` modifier can be applied to all the [rollup functions](#rollup-functions), [transform functions](#transform-functions)
@@ -138,8 +138,9 @@ This may result in `duplicate time series` error when the function is applied to
 This error can be fixed by applying `keep_metric_names` modifier to the function or binary operator.
 
 For example:
-- `rate({__name__=~"foo|bar"}) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
-- `({__name__=~"foo|bar"} / 10) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
+
+* `rate({__name__=~"foo|bar"}) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
+* `({__name__=~"foo|bar"} / 10) keep_metric_names` leaves `foo` and `bar` metric names in the returned time series.
 
 ## MetricsQL functions
 
@@ -166,10 +167,10 @@ Additional details:
 * If the given [series selector](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) returns multiple time series,
   then rollups are calculated individually per each returned series.
 * If lookbehind window in square brackets is missing, then it is automatically set to the following value:
-  - To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
+  * To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
     for all the [rollup functions](#rollup-functions) except of [default_rollup](#default_rollup) and [rate](#rate). This value is known as `$__interval` in Grafana or `1i` in MetricsQL.
     For example, `avg_over_time(temperature)` is automatically transformed to `avg_over_time(temperature[1i])`.
-  - To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
+  * To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
     for [default_rollup](#default_rollup) and [rate](#rate) functions. This allows avoiding unexpected gaps on the graph when `step` is smaller than `scrape_interval`.
 * Every [series selector](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering) in MetricsQL must be wrapped into a rollup function.
   Otherwise, it is automatically wrapped into [default_rollup](#default_rollup). For example, `foo{bar="baz"}`
@@ -666,8 +667,9 @@ This function is usually applied to [gauges](https://docs.victoriametrics.com/vi
 
 `outlier_iqr_over_time(series_selector[d])` is a [rollup function](#rollup-functions), which returns the last sample on the given lookbehind window `d`
 if its value is either smaller than the `q25-1.5*iqr` or bigger than `q75+1.5*iqr` where:
-- `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`
-- `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`.
+
+* `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`
+* `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) over [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples) on the lookbehind window `d`.
 
 The `outlier_iqr_over_time()` is useful for detecting anomalies in gauge values based on the previous history of values.
 For example, `outlier_iqr_over_time(memory_usage_bytes[1h])` triggers when `memory_usage_bytes` suddenly goes outside the usual value range for the last hour.
@@ -759,7 +761,6 @@ This function is usually applied to [counters](https://docs.victoriametrics.com/
 
 See also [increase_prometheus](#increase_prometheus) and [rate](#rate).
 
-
 #### rate_over_sum
 
 `rate_over_sum(series_selector[d])` is a [rollup function](#rollup-functions), which calculates per-second rate over the sum of [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
@@ -1106,7 +1107,6 @@ This function is usually applied to [gauges](https://docs.victoriametrics.com/vi
 
 See also [zscore](#zscore), [range_trim_zscore](#range_trim_zscore) and [outlier_iqr_over_time](#outlier_iqr_over_time).
 
-
 ### Transform functions
 
 **Transform functions** calculate transformations over [rollup results](#rollup-functions).
@@ -1851,7 +1851,6 @@ The list of supported label manipulation functions:
 `alias(q, "name")` is [label manipulation function](#label-manipulation-functions), which sets the given `name` to all the time series returned by `q`.
 For example, `alias(up, "foobar")` would rename `up` series to `foobar` series.
 
-
 #### drop_common_labels
 
 `drop_common_labels(q1, ...., qN)` is [label manipulation function](#label-manipulation-functions), which drops common `label="value"` pairs
@@ -1877,7 +1876,7 @@ For example, `label_graphite_group({__graphite__="foo*.bar.*"}, 0, 2)` would sub
 
 This function is useful for aggregating Graphite metrics with [aggregate functions](#aggregate-functions). For example, the following query would return per-app memory usage:
 
-```
+```metricsql
 sum by (__name__) (
     label_graphite_group({__graphite__="app*.host*.memory_usage"}, 0)
 )
@@ -2003,7 +2002,6 @@ would return series in the following order of `bar` label values: `101`, `15`, `
 
 See also [sort_by_label_numeric](#sort_by_label_numeric) and [sort_by_label_desc](#sort_by_label_desc).
 
-
 ### Aggregate functions
 
 **Aggregate functions** calculate aggregates over groups of [rollup results](#rollup-functions).
@@ -2179,8 +2177,9 @@ per each `group_labels` for all the time series returned by `q`. The aggregate i
 `outliers_iqr(q)` is [aggregate function](#aggregate-functions), which returns time series from `q` with at least a single point
 outside e.g. [Interquartile range outlier bounds](https://en.wikipedia.org/wiki/Interquartile_range) `[q25-1.5*iqr .. q75+1.5*iqr]`
 comparing to other time series at the given point, where:
-- `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) calculated independently per each point on the graph across `q` series.
-- `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) calculated independently per each point on the graph across `q` series.
+
+* `iqr` is an [Interquartile range](https://en.wikipedia.org/wiki/Interquartile_range) calculated independently per each point on the graph across `q` series.
+* `q25` and `q75` are 25th and 75th [percentiles](https://en.wikipedia.org/wiki/Percentile) calculated independently per each point on the graph across `q` series.
 
 The `outliers_iqr()` is useful for detecting anomalous series in the group of series. For example, `outliers_iqr(temperature) by (country)` returns
 per-country series with anomalous outlier values comparing to the rest of per-country series.
@@ -2349,10 +2348,10 @@ VictoriaMetrics performs subqueries in the following way:
 VictoriaMetrics performs the following implicit conversions for incoming queries before starting the calculations:
 
 * If lookbehind window in square brackets is missing inside [rollup function](#rollup-functions), then it is automatically set to the following value:
-  - To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
+  * To `step` value passed to [/api/v1/query_range](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#range-query) or [/api/v1/query](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#instant-query)
     for all the [rollup functions](#rollup-functions) except of [default_rollup](#default_rollup) and [rate](#rate). This value is known as `$__interval` in Grafana or `1i` in MetricsQL.
     For example, `avg_over_time(temperature)` is automatically transformed to `avg_over_time(temperature[1i])`.
-  - To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
+  * To the `max(step, scrape_interval)`, where `scrape_interval` is the interval between [raw samples](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#raw-samples)
     for [default_rollup](#default_rollup) and [rate](#rate) functions. This allows avoiding unexpected gaps on the graph when `step` is smaller than `scrape_interval`.
 * All the [series selectors](https://docs.victoriametrics.com/victoriametrics/keyconcepts/#filtering),
   which aren't wrapped into [rollup functions](#rollup-functions), are automatically wrapped into [default_rollup](#default_rollup) function.

app/vmui/packages/vmui/src/components/Configurators/TimeRangeSettings/ExecutionControls/ExecutionControls.tsx

@@ -30,7 +30,13 @@ const delayOptions: AutoRefreshOption[] = [
   { seconds: 7200, title: "2h" }
 ];
 
-export const ExecutionControls: FC = () => {
+interface ExecutionControlsProps {
+  tooltip: string;
+  useAutorefresh?: boolean;
+  closeModal: () => void;
+}
+
+export const ExecutionControls: FC<ExecutionControlsProps> = ({ tooltip, useAutorefresh, closeModal }) => {
   const { isMobile } = useDeviceDetect();
 
   const dispatch = useTimeDispatch();
@@ -56,6 +62,9 @@ export const ExecutionControls: FC = () => {
 
   const handleUpdate = () => {
     dispatch({ type: "RUN_QUERY" });
+    if (!useAutorefresh && isMobile) {
+      closeModal();
+    }
   };
 
   useEffect(() => {
@@ -77,91 +86,118 @@ export const ExecutionControls: FC = () => {
     handleChange(d);
   };
 
-  return <>
-    <div className="vm-execution-controls">
-      <div
-        className={classNames({
-          "vm-execution-controls-buttons": true,
-          "vm-execution-controls-buttons_mobile": isMobile,
-          "vm-header-button": !appModeEnable,
-        })}
-      >
-        {!isMobile && (
-          <Tooltip title="Refresh dashboard">
-            <Button
-              variant="contained"
-              color="primary"
-              onClick={handleUpdate}
-              startIcon={<RefreshIcon/>}
-              ariaLabel="refresh dashboard"
-            />
-          </Tooltip>
-        )}
-        {isMobile ? (
-          <div
-            className="vm-mobile-option"
-            onClick={toggleOpenOptions}
-          >
-            <span className="vm-mobile-option__icon"><RestartIcon/></span>
-            <div className="vm-mobile-option-text">
-              <span className="vm-mobile-option-text__label">Auto-refresh</span>
-              <span className="vm-mobile-option-text__value">{selectedDelay.title}</span>
-            </div>
-            <span className="vm-mobile-option__arrow"><ArrowDownIcon/></span>
-          </div>
-        ) : (
-          <Tooltip title="Auto-refresh control">
-            <div ref={optionsButtonRef}>
+  return (
+    <>
+      <div className="vm-execution-controls">
+        <div
+          className={classNames({
+            "vm-execution-controls-buttons": true,
+            "vm-execution-controls-buttons_mobile": isMobile,
+            "vm-header-button": !appModeEnable,
+            "vm-autorefresh": useAutorefresh,
+          })}
+        >
+          {useAutorefresh ? (
+            isMobile ? (
+              <div
+                className="vm-mobile-option"
+                onClick={toggleOpenOptions}
+              >
+                <span className="vm-mobile-option__icon"><RestartIcon/></span>
+                <div className="vm-mobile-option-text">
+                  <span className="vm-mobile-option-text__label">Auto-refresh</span>
+                  <span className="vm-mobile-option-text__value">{selectedDelay.title}</span>
+                </div>
+                <span className="vm-mobile-option__arrow"><ArrowDownIcon/></span>
+              </div>
+            ) : (
+              <>
+                <Tooltip title={tooltip}>
+                  <Button
+                    variant="contained"
+                    color="primary"
+                    onClick={handleUpdate}
+                    startIcon={<RefreshIcon/>}
+                    ariaLabel={tooltip}
+                  />
+                </Tooltip>
+                <Tooltip title="Auto-refresh control">
+                  <div ref={optionsButtonRef}>
+                    <Button
+                      variant="contained"
+                      color="primary"
+                      fullWidth
+                      endIcon={(
+                        <div
+                          className={classNames({
+                            "vm-execution-controls-buttons__arrow": true,
+                            "vm-execution-controls-buttons__arrow_open": openOptions,
+                          })}
+                        >
+                          <ArrowDownIcon/>
+                        </div>
+                      )}
+                      onClick={toggleOpenOptions}
+                    >
+                      {selectedDelay.title}
+                    </Button>
+                  </div>
+                </Tooltip>
+              </>
+            )
+          ) : (
+            isMobile ? (
+              <div
+                className="vm-mobile-option"
+                onClick={handleUpdate}
+              >
+                <span className="vm-mobile-option__icon"><RestartIcon/></span>
+                <div className="vm-mobile-option-text">
+                  <span className="vm-mobile-option-text__label">Refresh</span>
+                </div>
+              </div>
+            ) : (
               <Button
                 variant="contained"
                 color="primary"
-                fullWidth
-                endIcon={(
-                  <div
-                    className={classNames({
-                      "vm-execution-controls-buttons__arrow": true,
-                      "vm-execution-controls-buttons__arrow_open": openOptions,
-                    })}
-                  >
-                    <ArrowDownIcon/>
-                  </div>
-                )}
-                onClick={toggleOpenOptions}
-              >
-                {selectedDelay.title}
-              </Button>
-            </div>
-          </Tooltip>
-        )}
+                onClick={handleUpdate}
+                startIcon={<RefreshIcon/>}
+                ariaLabel={tooltip}
+              />
+            )
+          )}
+        </div>
       </div>
-    </div>
-    <Popper
-      open={openOptions}
-      placement="bottom-right"
-      onClose={handleCloseOptions}
-      buttonRef={optionsButtonRef}
-      title={isMobile ? "Auto-refresh duration" : undefined}
-    >
-      <div
-        className={classNames({
-          "vm-execution-controls-list": true,
-          "vm-execution-controls-list_mobile": isMobile,
-        })}
-      >
-        {delayOptions.map(d => (
+      {useAutorefresh && (
+        <Popper
+          open={openOptions}
+          placement="bottom-right"
+          onClose={handleCloseOptions}
+          buttonRef={optionsButtonRef}
+          title={isMobile ? "Auto-refresh duration" : undefined}
+        >
           <div
             className={classNames({
-              "vm-list-item": true,
-              "vm-list-item_mobile": isMobile,
-              "vm-list-item_active": d.seconds === selectedDelay.seconds
+              "vm-execution-controls-list": true,
+              "vm-execution-controls-list_mobile": isMobile,
             })}
-            key={d.seconds}
-            onClick={createHandlerChange(d)}
           >
-            {d.title}
+            {delayOptions.map(d => (
+              <div
+                className={classNames({
+                  "vm-list-item": true,
+                  "vm-list-item_mobile": isMobile,
+                  "vm-list-item_active": d.seconds === selectedDelay.seconds
+                })}
+                key={d.seconds}
+                onClick={createHandlerChange(d)}
+              >
+                {d.title}
+              </div>
+            ))}
           </div>
-        ))}
-      </div>
-    </Popper>
-  </>;
+        </Popper>
+      )}
+    </>
+  );
 };

app/vmui/packages/vmui/src/components/Configurators/TimeRangeSettings/ExecutionControls/style.scss

@@ -7,7 +7,10 @@
     display: flex;
     justify-content: space-between;
     border-radius: calc($button-radius + 1px);
-    min-width: 107px;
+
+    :is(.vm-autorefresh) {
+      min-width: 107px;
+    }
 
     &_mobile {
       flex-direction: column;

app/vmui/packages/vmui/src/components/DownloadButton/DownloadButton.tsx

@@ -1,20 +1,18 @@
-import { FC, useCallback } from "preact/compat";
+import { useCallback, useRef } from "preact/compat";
 import Tooltip from "../Main/Tooltip/Tooltip";
 import Button from "../Main/Button/Button";
 import { DownloadIcon } from "../Main/Icons";
 import Popper from "../Main/Popper/Popper";
-import { useRef } from "react";
 import "./style.scss";
 import useBoolean from "../../hooks/useBoolean";
 
-interface DownloadButtonProps {
+interface DownloadButtonProps<T extends string> {
   title: string;
-  downloadFormatOptions?: string[];
-  onDownload: (format?: string) => void;
+  downloadFormatOptions?: T[];
+  onDownload: (format?: T) => void;
 }
 
-/** TODO: Currently unused, later will be added for the exporting metrics */
-const DownloadButton: FC<DownloadButtonProps> = ({ title, downloadFormatOptions, onDownload }) => {
+const DownloadButton = <T extends string>({ title, downloadFormatOptions, onDownload }: DownloadButtonProps<T>) => {
   const {
     value: isPopupOpen,
     setTrue: onOpenPopup,
@@ -35,9 +33,19 @@ const DownloadButton: FC<DownloadButtonProps> = ({ title, downloadFormatOptions,
     }
   }, [onDownload, onClosePopup, isPopupOpen, onOpenPopup]);
 
+  const isDownloadFormat = useCallback((format: string): format is T => {
+    return (downloadFormatOptions as string[])?.includes(format);
+  }, [downloadFormatOptions]);
+
   const onDownloadFormatClick = useCallback((event: Event) => {
     const button = event.currentTarget as HTMLButtonElement;
-    onDownload(button.textContent ?? undefined);
+    const format = button.textContent;
+    if (format && isDownloadFormat(format)) {
+      onDownload(format);
+    } else {
+      onDownload();
+    }
+    onClosePopup();
   }, [onDownload]);
 
   return (

app/vmui/packages/vmui/src/components/ExploreAlerts/Badges/index.tsx

@@ -0,0 +1,34 @@
+import "./style.scss";
+import { ReactNode } from "react";
+
+export type BadgeColor = "firing" | "inactive" | "pending" | "no-match" | "unhealthy" | "ok" | "passive";
+
+interface BadgeItem {
+  value?: number | string;
+  color: BadgeColor;  
+}
+
+interface BadgesProps {
+  items: Record<string, BadgeItem>;
+  align?: "center" | "start" | "end";
+  children?: ReactNode;
+}
+
+const Badges = ({ items, children, align = "start" }: BadgesProps) => {
+  return (
+    <div
+      className="vm-badges"
+      style={{ "justify-content": align }}
+    >
+      {Object.entries(items).map(([name, props]) => (
+        <span
+          key={name}
+          className={`vm-badge ${props.color}`}
+        >{props.value ? `${name}: ${props.value}` : name}</span>
+      ))}
+      {children}
+    </div>
+  );
+};
+
+export default Badges;

app/vmui/packages/vmui/src/components/ExploreAlerts/Badges/style.scss

@@ -0,0 +1,69 @@
+@use "src/styles/variables" as *;
+
+$badge-colors: (
+  "firing": $color-error,
+  "inactive": $color-success,
+  "pending": $color-warning,
+  "no-match": $color-notice,
+  "unhealthy": $color-broken,
+  "ok": $color-info,
+  "passive": $color-passive,
+  "all": $color-passive,
+);
+
+.vm-badges {
+  display: flex;
+  flex-wrap: wrap;
+  gap: $padding-small;
+  &.align-center {
+    justify-content: center;
+  }
+  .vm-badge {
+    padding: 0 $padding-tiny;
+    width: fit-content;
+    @each $class, $color in $badge-colors {
+      &.#{$class} {
+        border: 1px solid $color;
+        color: $color;
+      }
+    }
+  }
+}
+
+.vm-badge-base {
+  font-weight: 400;
+  border-radius: $border-radius-small;
+}
+
+.vm-badge-menu-item {
+  @extend .vm-badge-base;
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+  line-height: 22px;
+  @each $class, $color in $badge-colors {
+    &.#{$class} {
+      border-right: $border-radius-small solid $color;
+    }
+  }
+}
+
+.vm-badge-item {
+  @extend .vm-badge-base;
+  @each $class, $color in $badge-colors {
+    &.#{$class} {
+      border-left: $border-radius-small solid $color;
+    }
+  }
+}
+
+.vm-badge {
+  @extend .vm-badge-base;
+  background-color: transparent;
+  padding: 0 $padding-tiny;
+  line-height: 22px;
+  max-width: 300px;
+  overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseAlert/index.tsx

@@ -0,0 +1,106 @@
+import { useMemo } from "preact/compat";
+import "./style.scss";
+import { Alert as APIAlert } from "../../../types";
+import { createSearchParams } from "react-router-dom";
+import Button from "../../Main/Button/Button";
+import Badges, { BadgeColor } from "../Badges";
+import {
+  SearchIcon,
+} from "../../Main/Icons";
+import dayjs from "dayjs";
+import CodeExample from "../../Main/CodeExample/CodeExample";
+
+interface BaseAlertProps {
+  item: APIAlert;
+}
+
+const BaseAlert = ({ item }: BaseAlertProps) => {
+  const query = item?.expression;
+  const alertLabels = item?.labels || {};
+  const alertLabelsItems = useMemo(() => {
+    return Object.fromEntries(Object.entries(alertLabels).map(([name, value]) => [name, {
+      color: "passive" as BadgeColor,
+      value: value,
+    }]));
+  }, [alertLabels]);
+
+  const openQueryLink = () => {
+    const params = {
+      "g0.expr": query,
+      "g0.end_time": ""
+    };
+    window.open(`#/?${createSearchParams(params).toString()}`, "_blank", "noopener noreferrer");
+  };
+
+  return (
+    <div className="vm-explore-alerts-alert-item">
+      <table>
+        <colgroup>
+          <col className="vm-col-md"/>
+          <col/>
+        </colgroup>
+        <tbody>
+          <tr>
+            <td
+              style={{ "text-align": "end" }}
+              colSpan={2}
+            >
+              <Button
+                size="small"
+                variant="outlined"
+                color="gray"
+                startIcon={<SearchIcon />}
+                onClick={openQueryLink}
+              >
+                <span className="vm-button-text">Run query</span>
+              </Button>
+            </td>
+          </tr>
+          <tr>
+            <td>Query</td>
+            <td>
+              <CodeExample
+                code={query}
+              />
+            </td>
+          </tr>
+          <tr>
+            <td>Active at</td>
+            <td>{dayjs(item.activeAt).format("DD MMM YYYY HH:mm:ss")}</td>
+          </tr>
+          {!!Object.keys(alertLabels).length && (
+            <tr>
+              <td>Labels</td>
+              <td>
+                <Badges
+                  items={alertLabelsItems}
+                />
+              </td>
+            </tr>
+          )}
+        </tbody>
+      </table>
+      {!!Object.keys(item.annotations || {}).length && (
+        <>
+          <span className="title">Annotations</span>
+          <table>
+            <colgroup>
+              <col className="vm-col-md"/>
+              <col/>
+            </colgroup>
+            <tbody>
+              {Object.entries(item.annotations || {}).map(([name, value]) => (
+                <tr key={name}>
+                  <td>{name}</td>
+                  <td>{value}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </>
+      )}
+    </div>
+  );
+};
+
+export default BaseAlert;

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseAlert/style.scss

@@ -0,0 +1,52 @@
+@use "src/styles/variables" as *;
+
+.vm-modal.vm-explore-alerts {
+  .vm-modal-content {
+    overflow-y: scroll;
+  }
+}
+
+.vm-explore-alerts-alert-item {
+  row-gap: $padding-global;
+  margin: $padding-global;
+  display: flex;
+  flex-direction: column;
+
+  .title {
+    font-weight: bold;
+    text-align: center;
+  }
+
+  .vm-col-md {
+    width: 20%;
+  }
+
+  .vm-button {
+    color: $color-passive;
+    border: 1px solid $color-passive;
+  }
+
+  .vm-code-example {
+    .vm-button {
+      background-color: $color-code;
+    }
+  }
+
+  table {
+    word-break: break-word;
+    table-layout: fixed;
+    width: 100%;
+    td, th {
+      line-height: 30px;
+      padding: 4px $padding-small;
+      white-space: nowrap;
+      text-align: left;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+    th {
+      font-weight: bold;
+      padding: 0 $padding-small;
+    }
+  }
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseGroup/index.tsx

@@ -0,0 +1,127 @@
+import { useMemo } from "preact/compat";
+import "./style.scss";
+import { Group as APIGroup } from "../../../types";
+import dayjs from "dayjs";
+import { formatDuration } from "../helpers";
+import Badges, { BadgeColor } from "../Badges";
+
+interface BaseGroupProps {
+  group: APIGroup;
+}
+
+const BaseGroup = ({ group }: BaseGroupProps) => {
+  const groupLabels = group?.labels || {};
+  const groupLabelsItems = useMemo(() => {
+    return Object.fromEntries(Object.entries(groupLabels).map(([name, value]) => [name, {
+      color: "passive" as BadgeColor,
+      value: value,
+    }]));
+  }, [groupLabels]);
+
+  const groupParams = group?.params || [];
+  const groupParamsItems = useMemo(() => {
+    return Object.fromEntries(groupParams.map(value => [value, {
+      color: "passive" as BadgeColor,
+    }]));
+  }, [groupParams]);
+
+  const groupHeaders = group?.headers || [];
+  const groupHeadersItems = useMemo(() => {
+    return Object.fromEntries(groupHeaders.map(value => [value, {
+      color: "passive" as BadgeColor,
+    }]));
+  }, [groupHeaders]);
+
+  const groupNotifierHeaders = group?.notifier_headers || [];
+  const groupNotifierHeadersItems = useMemo(() => {
+    return Object.fromEntries(groupNotifierHeaders.map(value => [value, {
+      color: "passive" as BadgeColor,
+    }]));
+  }, [groupNotifierHeaders]);
+  return (
+    <div className="vm-explore-alerts-group">
+      <table>
+        <tbody>
+          {!!group.interval && (
+            <tr>
+              <td className="vm-col-md">Interval</td>
+              <td>{formatDuration(group.interval)}</td>
+            </tr>
+          )}
+          {!!group.lastEvaluation && (
+            <tr>
+              <td className="vm-col-md">Last evaluation</td>
+              <td>{dayjs(group.lastEvaluation).format("DD MMM YYYY HH:mm:ss")}</td>
+            </tr>
+          )}
+          {!!group.eval_offset && (
+            <tr>
+              <td className="vm-col-md">Eval offset</td>
+              <td>{formatDuration(group.eval_offset)}</td>
+            </tr>
+          )}
+          {!!group.eval_delay && (
+            <tr>
+              <td className="vm-col-md">Eval delay</td>
+              <td>{formatDuration(group.eval_delay)}</td>
+            </tr>
+          )}
+          {!!group.file && (
+            <tr>
+              <td className="vm-col-md">File</td>
+              <td>{group.file}</td>
+            </tr>
+          )}
+          {!!group.concurrency && (
+            <tr>
+              <td className="vm-col-md">Concurrency</td>
+              <td>{group.concurrency}</td>
+            </tr>
+          )}
+          {!!Object.keys(groupLabels).length && (
+            <tr>
+              <td className="vm-col-md">Labels</td>
+              <td>
+                <Badges
+                  items={groupLabelsItems}
+                />
+              </td>
+            </tr>
+          )}
+          {!!groupParams.length && (
+            <tr>
+              <td className="vm-col-md">Params</td>
+              <td>
+                <Badges
+                  items={groupParamsItems}
+                />
+              </td>
+            </tr>
+          )}
+          {!!groupHeaders.length && (
+            <tr>
+              <td className="vm-col-md">Headers</td>
+              <td>
+                <Badges
+                  items={groupHeadersItems}
+                />
+              </td>
+            </tr>
+          )}
+          {!!groupNotifierHeaders.length && (
+            <tr>
+              <td className="vm-col-md">Notifier headers</td>
+              <td>
+                <Badges
+                  items={groupNotifierHeadersItems}
+                />
+              </td>
+            </tr>
+          )}
+        </tbody>
+      </table>
+    </div>
+  );
+};
+
+export default BaseGroup;

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseGroup/style.scss

@@ -0,0 +1,69 @@
+@use "src/styles/variables" as *;
+
+.vm-modal.vm-explore-alerts {
+  .vm-modal-content {
+    overflow-y: scroll;
+  }
+}
+
+.vm-explore-alerts-group {
+  row-gap: $padding-global;
+  margin: $padding-global;
+  display: flex;
+  flex-direction: column;
+
+  .title {
+    font-weight: bold;
+    text-align: center;
+  }
+
+  pre {
+    position: relative;
+    background-color: $color-background-badge;
+    padding: 0 $padding-global;
+    border-radius: $border-radius-small;
+    word-break: break-word;
+    white-space: pre-wrap;
+    .keyword,
+    .function,
+    .attr-name,
+    .range-duration {
+      color: $color-keyword;
+    }
+    div {
+      position: absolute;
+      top: 0;
+      right: 0;
+      display: flex;
+      column-gap: 4px;
+    }
+  }
+
+  .vm-col-md {
+    width: 20%;
+  }
+
+  table {
+    width: 100%;
+    table-layout: fixed;
+    tr.hoverable {
+      cursor: pointer;
+      &:hover {
+        background-color: $color-background-hover;
+      }
+    }
+    td, th {
+      line-height: 30px;
+      padding: 4px $padding-small;
+      white-space: nowrap;
+      text-align: left;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+    th {
+      font-weight: bold;
+      text-align: center;
+      padding: 0 $padding-small;
+    }
+  }
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseRule/index.tsx

@@ -0,0 +1,225 @@
+import { useMemo } from "preact/compat";
+import "./style.scss";
+import { Rule as APIRule } from "../../../types";
+import { useNavigate, createSearchParams } from "react-router-dom";
+import { SearchIcon, DetailsIcon } from "../../Main/Icons";
+import Button from "../../Main/Button/Button";
+import Alert from "../../Main/Alert/Alert";
+import Badges, { BadgeColor } from "../Badges";
+import dayjs from "dayjs";
+import { formatDuration } from "../helpers";
+import CodeExample from "../../Main/CodeExample/CodeExample";
+
+interface BaseRuleProps {
+  item: APIRule;
+}
+
+const BaseRule = ({ item }: BaseRuleProps) => {
+  const query = item?.query;
+  const navigate = useNavigate();
+  const openAlertLink = (id: string) => {
+    return () => {
+      navigate({
+        pathname: "/rules",
+        search:   `group_id=${item.group_id}&alert_id=${id}`,
+      });
+    };
+  };
+
+  const ruleLabels = item?.labels || {};
+  const ruleLabelsItems = useMemo(() => {
+    return Object.fromEntries(Object.entries(ruleLabels).map(([name, value]) => [name, {
+      color: "passive" as BadgeColor,
+      value: value,
+    }]));
+  }, [ruleLabels]);
+
+  const openQueryLink = () => {
+    const params = {
+      "g0.expr": query,
+      "g0.end_time": ""
+    };
+    window.open(`#/?${createSearchParams(params).toString()}`, "_blank", "noopener noreferrer");
+  };
+
+  return (
+    <div className="vm-explore-alerts-rule-item">
+      <table>
+        <colgroup>
+          <col className="vm-col-md"/>
+          <col/>
+        </colgroup>
+        <tbody>
+          <tr>
+            <td
+              style={{ "text-align": "end" }}
+              colSpan={2}
+            >
+              <Button
+                size="small"
+                variant="outlined"
+                color="gray"
+                startIcon={<SearchIcon />}
+                onClick={openQueryLink}
+              >
+                <span className="vm-button-text">Run query</span>
+              </Button>
+            </td>
+          </tr>
+          <tr>
+            <td>Query</td>
+            <td>
+              <CodeExample
+                code={query}
+              />
+            </td>
+          </tr>
+          {!!item.duration && (
+            <tr>
+              <td>For</td>
+              <td>{formatDuration(item.duration)}</td>
+            </tr>
+          )}
+          {!!item.lastEvaluation && (
+            <tr>
+              <td>Last evaluation</td>
+              <td>{dayjs(item.lastEvaluation).format("DD MMM YYYY HH:mm:ss")}</td>
+            </tr>
+          )}
+          {!!item.lastError && item.health !== "ok" && (
+            <tr>
+              <td>Last error</td>
+              <td>
+                <Alert variant="error">{item.lastError}</Alert>
+              </td>
+            </tr>
+          )}
+          {!!Object.keys(ruleLabelsItems).length && (
+            <tr>
+              <td>Labels</td>
+              <td>
+                <Badges
+                  items={ruleLabelsItems}
+                />
+              </td>
+            </tr>
+          )}
+        </tbody>
+      </table>
+      {!!Object.keys(item?.annotations || {}).length && (
+        <>
+          <span className="title">Annotations</span>
+          <table>
+            <colgroup>
+              <col className="vm-col-md"/>
+              <col/>
+            </colgroup>
+            <tbody>
+              {Object.entries(item.annotations || {}).map(([name, value]) => (
+                <tr key={name}>
+                  <td>{name}</td>
+                  <td>{value}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </>
+      )}
+      {!!item?.updates?.length && (
+        <>
+          <span className="title">{`Last updates ${item.updates.length}/${item.max_updates_entries}`}</span>
+          <table>
+            <thead>
+              <tr>
+                <th>Updated at</th>
+                <th>Series returned</th>
+                <th>Series fetched</th>
+                <th>Duration</th>
+                <th>Executed at</th>
+              </tr>
+            </thead>
+            <tbody>
+              {item.updates.map((update) => (
+                <tr
+                  key={update.at}
+                >
+                  <td>{dayjs(update.time).format("DD MMM YYYY HH:mm:ss")}</td>
+                  <td>{update.samples}</td>
+                  <td>{update.series_fetched}</td>
+                  <td>{formatDuration(update.duration / 1e9)}</td>
+                  <td>{dayjs(update.at).format("DD MMM YYYY HH:mm:ss")}</td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </>
+      )}
+      {!!item?.alerts?.length && (
+        <>
+          <span className="title">Alerts</span>
+          <table>
+            <colgroup>
+              <col className="vm-col-sm"/>
+              <col className="vm-col-sm"/>
+              <col className="vm-col-sm"/>
+              <col/>
+              <col className="vm-col-hidden"/>
+            </colgroup>
+            <thead>
+              <tr>
+                <th>Active since</th>
+                <th>State</th>
+                <th>Value</th>
+                <th className="title">Labels</th>
+                <th></th>
+              </tr>
+            </thead>
+            <tbody>
+              {item.alerts.map((alert) => (
+                <tr
+                  id={`alert-${alert.id}`}
+                  key={alert.id}
+                >
+                  <td>
+                    {dayjs(alert.activeAt).format("DD MMM YYYY HH:mm:ss")}
+                  </td>
+                  <td>
+                    <Badges
+                      items={{ [alert.state]: { color: alert.state as BadgeColor } }}
+                    />
+                  </td>
+                  <td>
+                    <Badges
+                      items={{ [alert.value]: { color: "passive" } }}
+                    />
+                  </td>
+                  <td>
+                    <Badges
+                      align="center"
+                      items={Object.fromEntries(Object.entries(alert.labels || {}).map(([name, value]) => [name, {
+                        color: "passive",
+                        value: value,
+                      }]))}
+                    />
+                  </td>
+                  <td>
+                    <Button
+                      className="vm-button-borderless"
+                      size="small"
+                      variant="outlined"
+                      color="gray"
+                      startIcon={<DetailsIcon />}
+                      onClick={openAlertLink(alert.id)}
+                    />
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </>
+      )}
+    </div>
+  );
+};
+
+export default BaseRule;

app/vmui/packages/vmui/src/components/ExploreAlerts/BaseRule/style.scss

@@ -0,0 +1,64 @@
+@use "src/styles/variables" as *;
+
+.vm-modal.vm-explore-alerts {
+  .vm-modal-content {
+    overflow-y: scroll;
+  }
+}
+
+.vm-explore-alerts-rule-item {
+  row-gap: $padding-global;
+  margin: $padding-global;
+  display: flex;
+  flex-direction: column;
+
+  .title {
+    font-weight: bold;
+    text-align: center;
+  }
+
+  .vm-col-hidden {
+    width: 40px;
+  }
+
+  .vm-button {
+    color: $color-passive;
+    border: 1px solid $color-passive;
+  }
+
+  .vm-code-example {
+    .vm-button {
+      background-color: $color-code;
+    }
+  }
+
+  .vm-col-sm {
+    width: 15%;
+  }
+
+  .vm-col-md {
+    width: 20%;
+  }
+
+  table {
+    word-break: break-word;
+    table-layout: fixed;
+    width: 100%;
+    td, th {
+      line-height: 30px;
+      padding: 4px $padding-small;
+      vertical-align: middle;
+      white-space: nowrap;
+      text-align: left;
+      overflow: hidden;
+      text-overflow: ellipsis;
+    }
+    td.align-center {
+      text-align: center
+    }
+    th {
+      font-weight: bold;
+      padding: 0 $padding-small;
+    }
+  }
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/GroupHeader/index.tsx

@@ -0,0 +1,59 @@
+import { FC } from "preact/compat";
+import "./style.scss";
+import useDeviceDetect from "../../../hooks/useDeviceDetect";
+import { useNavigate } from "react-router-dom";
+import { Group as APIGroup } from "../../../types";
+import { DetailsIcon } from "../../Main/Icons";
+import Button from "../../Main/Button/Button";
+import Badges, { BadgeColor } from "../Badges";
+import classNames from "classnames";
+interface GroupHeaderControlsProps {
+  group: APIGroup;
+}
+
+const GroupHeaderHeader: FC<GroupHeaderControlsProps> = ({ group }) => {
+  const { isMobile } = useDeviceDetect();
+  const navigate = useNavigate();
+
+  const openGroupModal = async () => {
+    navigate({
+      pathname: "/rules",
+      search:   `group_id=${group.id}`,
+    });
+  };
+
+  const headerClasses = classNames({
+    "vm-explore-alerts-group-header": true,
+    "vm-explore-alerts-group-header_mobile": isMobile,
+  });
+
+  return (
+    <div className={headerClasses}>
+      <div className="vm-explore-alerts-group-header__desc">
+        <div className="vm-explore-alerts-group-header__name">{group.name}</div>
+        {!isMobile && (
+          <div className="vm-explore-alerts-group-header__file">{group.file}</div>
+        )}
+      </div>
+      <div className="vm-explore-alerts-controls">
+        <Badges
+          align="end"
+          items={Object.fromEntries(Object.entries(group.states || {}).map(([name, value]) => [name.toLowerCase(), {
+            color: name.toLowerCase().replace(" ", "-") as BadgeColor,
+            value: value,
+          }]))}
+        />
+        <Button
+          className="vm-button-borderless"
+          size="small"
+          color="gray"
+          variant="outlined"
+          startIcon={<DetailsIcon />}
+          onClick={openGroupModal}
+        />
+      </div>
+    </div>
+  );
+};
+
+export default GroupHeaderHeader;

app/vmui/packages/vmui/src/components/ExploreAlerts/GroupHeader/style.scss

@@ -0,0 +1,65 @@
+@use "src/styles/variables" as *;
+
+.vm-explore-alerts-group-header {
+  display: flex;
+  align-items: center;
+  padding: $padding-tiny 0 $padding-tiny $padding-global;
+  justify-content: space-between;
+
+  .vm-button_small {
+    padding: 4px;
+  }
+
+  .vm-button-borderless {
+    border: 0;
+  }
+
+  @media(max-width: 768px) {
+    .vm-button-text {
+      display: none;
+    }
+  }
+
+  &_mobile {
+    .vm-button-text {
+      display: none;
+    }
+  }
+
+  &__desc {
+    display: flex;
+    flex-direction: column;
+    gap: $padding-tiny;
+  }
+
+  &__index {
+    color: $color-text-secondary;
+    font-size: $font-size-small;
+  }
+
+  &__name {
+    flex-grow: 1;
+    font-weight: bold;
+    max-width: 100%;
+    text-overflow: ellipsis;
+    overflow: hidden;
+    line-height: 130%;
+    word-break: break-word;
+  }
+
+  &__file {
+    color: $color-text-disabled;
+  }
+
+  code {
+    padding: 0.2em 0.4em;
+    font-size: 85%;
+    background-color: $color-hover-black;
+    border-radius: 6px;
+  }
+}
+
+.vm-explore-alerts-controls {
+  display: flex;
+  column-gap: $padding-global;
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/ItemHeader/index.tsx

@@ -0,0 +1,133 @@
+import { FC, useMemo } from "preact/compat";
+import "./style.scss";
+import useDeviceDetect from "../../../hooks/useDeviceDetect";
+import useCopyToClipboard from "../../../hooks/useCopyToClipboard";
+import { useAppState } from "../../../state/common/StateContext";
+import Tooltip from "../../Main/Tooltip/Tooltip";
+import classNames from "classnames";
+import { useNavigate } from "react-router-dom";
+import Badges, { BadgeColor } from "../Badges";
+import {
+  LinkIcon,
+  GroupIcon,
+  AlertIcon,
+  AlertingRuleIcon,
+  RecordingRuleIcon,
+  DetailsIcon,
+} from "../../Main/Icons";
+import Button from "../../Main/Button/Button";
+
+interface ItemHeaderControlsProps {
+  entity: string;
+  type?: string;
+  groupId: string;
+  states?: Record<string, number>;
+  id?: string;
+  name: string;
+  onClose?: () => void;
+}
+
+const ItemHeader: FC<ItemHeaderControlsProps> = ({ name, id, groupId, entity, type, states, onClose }) => {
+  const { isMobile } = useDeviceDetect();
+  const { serverUrl } = useAppState();
+  const navigate = useNavigate();
+  const copyToClipboard = useCopyToClipboard();
+
+  const openItemLink = () => {
+    navigate({
+      pathname: "/rules",
+      search:   `group_id=${groupId}&${entity}_id=${id}`,
+    });
+  };
+
+  const copyLink = async () => {
+    let link = `${serverUrl}/vmui/#/rules?group_id=${groupId}`;
+    if (type) link = `${link}&${entity}_id=${id}`;
+    await copyToClipboard(link, `Link to ${entity} has been copied`);
+  };
+
+  const headerClasses = classNames({
+    "vm-explore-alerts-item-header": true,
+    "vm-explore-alerts-item-header_mobile": isMobile,
+  });
+
+  const renderIcon = () => {
+    switch(entity) {
+      case "alert":
+        return (
+          <Tooltip title="Alert">
+            <AlertIcon />
+          </Tooltip>
+        );
+      case "group":
+        return (
+          <Tooltip title="Group">
+            <GroupIcon />
+          </Tooltip>
+        );
+      default:
+        switch(type) {
+          case "alerting":
+            return (
+              <Tooltip title="Alerting rule">
+                <AlertingRuleIcon />
+              </Tooltip>
+            );
+          default:
+            return (
+              <Tooltip title="Recording rule">
+                <RecordingRuleIcon />
+              </Tooltip>
+            );
+        }
+    }
+  };
+
+  const badgesItems = useMemo(() => {
+    return Object.fromEntries(Object.entries(states || {}).map(([name,  value]) => [name, {
+      color: name.toLowerCase().replace(" ", "-") as BadgeColor,
+      value: value == 1 ? 0 : value,
+    }]));
+  }, [states]);
+
+  return (
+    <div
+      className={headerClasses}
+      id={`rule-${id}`}
+    >
+      <div className="vm-explore-alerts-item-header__title">
+        {renderIcon()}
+        <div className="vm-explore-alerts-item-header__name">{name}</div>
+      </div>
+      <div className="vm-explore-alerts-controls">
+        <Badges
+          align="end"
+          items={badgesItems}
+        />
+        {onClose ? (
+          <Button
+            className="vm-back-button"
+            size="small"
+            variant="outlined"
+            color="gray"
+            startIcon={<LinkIcon />}
+            onClick={copyLink}
+          >
+            <span className="vm-button-text">Copy Link</span>
+          </Button>
+        ) : (
+          <Button
+            className="vm-button-borderless"
+            size="small"
+            variant="outlined"
+            color="gray"
+            startIcon={<DetailsIcon />}
+            onClick={openItemLink}
+          />
+        )}
+      </div>
+    </div>
+  );
+};
+
+export default ItemHeader;

app/vmui/packages/vmui/src/components/ExploreAlerts/ItemHeader/style.scss

@@ -0,0 +1,75 @@
+@use "src/styles/variables" as *;
+
+.vm-explore-alerts-item-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: $padding-global;
+
+  .vm-button_small {
+    padding: 4px;
+  }
+
+  @media(max-width: 768px) {
+    .vm-button-text {
+      display: none;
+    }
+  }
+
+  .vm-button-borderless {
+    border: 0;
+  }
+
+  .vm-back-button {
+    svg {
+      transform: rotate(90deg);
+    }
+  }
+
+  &_mobile {
+    .vm-button-text {
+      display: none;
+    }
+  }
+
+  &__index {
+    color: $color-text-secondary;
+    font-size: $font-size-small;
+  }
+
+  &__name {
+    font-weight: bold;
+    max-width: 100%;
+    text-overflow: ellipsis;
+    overflow: hidden;
+    line-height: 130%;
+    word-break: break-word;
+  }
+
+  &__title {
+    display: flex;
+    column-gap: $padding-global;
+    overflow: hidden;
+    svg {
+      fill: $color-text-disabled;
+      width: 14px;
+      min-width: 14px;
+    }
+  }
+
+  &__file {
+    color: $color-text-disabled;
+  }
+
+  code {
+    padding: 0.2em 0.4em;
+    font-size: 85%;
+    background-color: $color-hover-black;
+    border-radius: 6px;
+  }
+}
+
+.vm-explore-alerts-controls {
+  display: flex;
+  column-gap: $padding-global;
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/NotifierHeader/index.tsx

@@ -0,0 +1,30 @@
+import { FC } from "preact/compat";
+import "./style.scss";
+import useDeviceDetect from "../../../hooks/useDeviceDetect";
+import { Notifier } from "../../../types";
+import classNames from "classnames";
+
+interface NotifierHeaderControlsProps {
+  notifier: Notifier;
+}
+
+const NotifierHeaderHeader: FC<NotifierHeaderControlsProps> = ({
+  notifier,
+}) => {
+  const { isMobile } = useDeviceDetect();
+
+  return (
+    <div
+      className={classNames({
+        "vm-explore-alerts-notifier-header": true,
+        "vm-explore-alerts-notifier-header_mobile": isMobile,
+      })}
+    >
+      <div className="vm-explore-alerts-notifier-header__name">
+        {notifier.kind}
+      </div>
+    </div>
+  );
+};
+
+export default NotifierHeaderHeader;

app/vmui/packages/vmui/src/components/ExploreAlerts/NotifierHeader/style.scss

@@ -0,0 +1,38 @@
+@use "src/styles/variables" as *;
+
+.vm-explore-alerts-notifier-header {
+  display: flex;
+  align-items: center;
+  padding: $padding-global;
+  justify-content: space-between;
+  gap: $padding-global;
+
+  &_mobile {
+    padding: $padding-small $padding-global;
+  }
+
+  &__index {
+    color: $color-text-secondary;
+    font-size: $font-size-small;
+  }
+
+  &__name {
+    flex-grow: 1;
+    font-weight: bold;
+    max-width: 100%;
+    text-overflow: ellipsis;
+    overflow: hidden;
+    line-height: 130%;
+  }
+
+  &__file {
+    color: $color-text-disabled;
+  }
+
+  code {
+    padding: 0.2em 0.4em;
+    font-size: 85%;
+    background-color: $color-hover-black;
+    border-radius: 6px;
+  }
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/NotifiersHeader/index.tsx

@@ -0,0 +1,59 @@
+import { FC } from "preact/compat";
+import Select from "../../Main/Select/Select";
+import { SearchIcon } from "../../Main/Icons";
+import TextField from "../../Main/TextField/TextField";
+import "./style.scss";
+import classNames from "classnames";
+import useDeviceDetect from "../../../hooks/useDeviceDetect";
+
+interface NotifiersHeaderProps {
+  kinds: string[];
+  allKinds: string[];
+  onChangeKinds: (input: string) => void;
+  onChangeSearch: (input: string) => void;
+}
+
+const NotifiersHeader: FC<NotifiersHeaderProps> = ({
+  kinds,
+  allKinds,
+  onChangeKinds,
+  onChangeSearch,
+}) => {
+  const { isMobile } = useDeviceDetect();
+
+  return (
+    <>
+      <div
+        className={classNames({
+          "vm-explore-alerts-header": true,
+          "vm-explore-alerts-header_mobile": isMobile,
+          "vm-block": true,
+          "vm-block_mobile": isMobile,
+        })}
+      >
+        <div className="vm-explore-alerts-header__rule_type">
+          <Select
+            value={kinds}
+            list={allKinds}
+            label="Notifier type"
+            placeholder="Please select notifier type"
+            onChange={onChangeKinds}
+            autofocus={!!kinds.length && !isMobile}
+            includeAll
+            searchable
+          />
+        </div>
+        <div className="vm-explore-alerts-header-search">
+          <TextField
+            label="Search"
+            placeholder="Filter by kind, address or labels"
+            startIcon={<SearchIcon />}
+            onChange={onChangeSearch}
+          />
+        </div>
+      </div>
+    </>
+  );
+};
+
+export default NotifiersHeader;

app/vmui/packages/vmui/src/components/ExploreAlerts/NotifiersHeader/style.scss

@@ -0,0 +1,65 @@
+@use "src/styles/variables" as *;
+
+.vm-explore-alerts-header {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: flex-start;
+  gap: $padding-global calc($padding-small + 10px);
+  width: 100%;
+
+  &_mobile {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  &__rule_type {
+    min-width: 120px;
+  }
+
+  &__state {
+    min-width: 150px;
+  }
+
+  &-description {
+    display: grid;
+    grid-template-columns: 1fr auto;
+    align-items: flex-start;
+    gap: $padding-small;
+
+    ul {
+      list-style-position: inside;
+    }
+
+    button {
+      color: inherit;
+      min-height: 29px;
+    }
+
+    code {
+      margin: 0 3px;
+    }
+  }
+
+  &-search {
+    flex-grow: 1;
+    .vm-text-field__input {
+      padding: 11px 28px;
+    }
+    .vm-text-field__icon-start {
+      height: 42px;
+    }
+  }
+
+  &__clear-icon {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 2px;
+    cursor: pointer;
+
+    &:hover {
+      opacity: 0.7;
+    }
+  }
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/Rule/index.tsx

@@ -0,0 +1,34 @@
+import { FC } from "preact/compat";
+import ItemHeader from "../ItemHeader";
+import Accordion from "../../Main/Accordion/Accordion";
+import "./style.scss";
+import { Rule as APIRule } from "../../../types";
+import BaseRule from "../BaseRule";
+
+interface RuleProps {
+  states: Record<string, number>;
+  rule: APIRule;
+}
+
+const Rule: FC<RuleProps> = ({ states, rule }) => {
+  const state = Object.keys(states).length > 0 ? Object.keys(states)[0] : "ok";
+  return (
+    <div className={`vm-explore-alerts-rule vm-badge-item ${state.replace(" ", "-")}`}>
+      <Accordion
+        key={`rule-${rule.id}`}
+        title={<ItemHeader
+          entity="rule"
+          type={rule.type}
+          groupId={rule.group_id}
+          states={states}
+          id={rule.id}
+          name={rule.name}
+        />}
+      >
+        <BaseRule item={rule} />
+      </Accordion>
+    </div>
+  );
+};
+
+export default Rule;

app/vmui/packages/vmui/src/components/ExploreAlerts/Rule/style.scss

@@ -0,0 +1,18 @@
+@use "src/styles/variables" as *;
+
+.vm-explore-alerts-rule {
+  padding: $padding-tiny;
+  padding-right: 0;
+  display: flex;
+  row-gap: $padding-tiny;
+  flex-direction: column;
+  position: relative;
+
+  &:has(>details[open]) {
+    background-color: $color-background-item;
+  }
+
+  &:hover {
+    background-color: $color-background-item;
+  }
+}

app/vmui/packages/vmui/src/components/ExploreAlerts/RulesHeader/index.tsx

@@ -0,0 +1,82 @@
+import { FC, useMemo } from "preact/compat";
+import Select from "../../Main/Select/Select";
+import { SearchIcon } from "../../Main/Icons";
+import TextField from "../../Main/TextField/TextField";
+import "./style.scss";
+import classNames from "classnames";
+import useDeviceDetect from "../../../hooks/useDeviceDetect";
+
+interface RulesHeaderProps {
+  types: string[];
+  allTypes: string[];
+  allStates: string[];
+  states: string[];
+  onChangeTypes: (input: string) => void;
+  onChangeStates: (input: string) => void;
+  onChangeSearch: (input: string) => void;
+}
+
+const RulesHeader: FC<RulesHeaderProps> = ({
+  types,
+  allTypes,
+  allStates,
+  states,
+  onChangeTypes,
+  onChangeStates,
+  onChangeSearch,
+}) => {
+  const noStateText = useMemo(
+    () => (types.length ? "" : "No states. Please select rule states"),
+    [types],
+  );
+  const { isMobile } = useDeviceDetect();
+
+  return (
+    <>
+      <div
+        className={classNames({
+          "vm-explore-alerts-header": true,
+          "vm-explore-alerts-header_mobile": isMobile,
+          "vm-block": true,
+          "vm-block_mobile": isMobile,
+        })}
+      >
+        <div className="vm-explore-alerts-header__rule_type">
+          <Select
+            value={types}
+            list={allTypes}
+            label="Rules type"
+            placeholder="Please select rule type"
+            onChange={onChangeTypes}
+            autofocus={!!types.length && !isMobile}
+            includeAll
+            searchable
+          />
+        </div>
+        <div className="vm-explore-alerts-header__state">
+          <Select
+            itemClassName="vm-badge-menu-item"
+            value={states}
+            list={allStates}
+            label="State"
+            placeholder="Please rule state"
+            onChange={onChangeStates}
+            noOptionsText={noStateText}
+            includeAll
+            searchable
+          />
+        </div>
+        <div className="vm-explore-alerts-header-search">
+          <TextField
+            label="Search"
+            placeholder="Filter by rule, name or labels"
+            startIcon={<SearchIcon />}
+            onChange={onChangeSearch}
+          />
+        </div>
+      </div>
+    </>
+  );
+};
+
+export default RulesHeader;