app/vmui: top queries better highligh for selected query

app/vmui/packages/vmui/src/styles/components/table.scss

@@ -26,6 +26,12 @@
 
     &_highlighted {
       font-weight: bold;
+      background-color: rgba($color-dodger-blue, 0.08);
+      box-shadow: inset 3px 0 0 $color-dodger-blue;
+
+      &:hover {
+        background-color: rgba($color-dodger-blue, 0.14);
+      }
     }
   }
 

ceconfig.yaml

@@ -0,0 +1,15 @@
+streams:
+  - name: 'global_by_metric_name'
+    group: "__name__"
+
+  - name: 'global_by_instance'
+    group: "instance"
+
+  - name: 'eu_region_by_instance'
+    filter: '{region="eu-central-1"}'
+    group: "instance"
+
+# TODO:
+# - window duration
+# - do not expose as metric below threashold
+# -

task.md

@@ -0,0 +1,22 @@
+Implement cardinality estimator.
+
+Place absolute all code in app/cestimator.
+
+It should accept a config via -config in yaml format.
+Example of configuration:
+
+```yaml
+estimators:
+  - stream: foo # required
+    filter: 'as promql' #optional
+    group: 'label name' # optional
+```
+
+For each estimator in config it should create hll counter using https://github.com/axiomhq/hyperloglog lib.
+If a group parameter is defined than create a hll counter per group.
+
+The app should accept data in Prometheus remote write protocol. Reuse existing solutions.
+
+expose cardinality on /metrics endpoint in format:
+
+cardinality_estimate{stream="foo",group="label name"} 123