chore(RHTAPWATCH-741): Add recording rules for exporter

Makefile

@@ -22,6 +22,7 @@ kustomize:
 check-and-test:
  $(CMD) -t rhtap -d rhobs/alerting/data_plane -y -p --tests-dir test/promql/tests/data_plane
  $(CMD) -t rhtap -d rhobs/alerting/control_plane -y -p --tests-dir test/promql/tests/control_plane
+ $(CMD) -t rhtap -d rhobs/recording -y -p --tests-dir test/promql/tests/recording
 
 .PHONY: install_pipenv
 install_pipenv:

exporters/dsexporter/dsexporter.go

@@ -14,7 +14,6 @@ import (
  "sigs.k8s.io/controller-runtime/pkg/client/config"
 )
 
-const service = "grafana"
 const check = "prometheus-appstudio-ds"
 var allDataSources = GetDataSources
 
@@ -26,10 +25,10 @@ type CustomCollector struct {
 func NewCustomCollector() *CustomCollector {
  return &CustomCollector{
  konfluxUp: prometheus.NewGaugeVec(prometheus.GaugeOpts{
- Name: "konflux_up",
+ Name: "grafana_ds_up",
  Help: "Availability of the Konflux default grafana datasource",
  },
- []string{"service", "check"}),
+ []string{"check"}),
  }
 }
 
@@ -53,7 +52,7 @@ func (e *CustomCollector) Collect(ch chan<- prometheus.Metric) {
  }
  }
 
- e.konfluxUp.WithLabelValues(service, check).Set(availability)
+ e.konfluxUp.WithLabelValues(check).Set(availability)
  e.konfluxUp.Collect(ch)
 }
 

rhobs/recording/exporter_recording_rules.yml

@@ -0,0 +1,15 @@
+# Metric format needed
+# grafana_ds_up(check=prometheus-appstudio-ds) -> konflux_up(service=grafana, check=prometheus-appstudio-ds)
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+ name: rhtap-exporter-label-replace
+ labels:
+ tenant: rhtap
+spec:
+ groups:
+ - name: exporter
+ interval: 1m
+ rules:
+ - record: konflux_up
+ expr: label_replace(grafana_ds_up, "service", "grafana", "__name__", "(.+)")

test/promql/tests/recording/exporter_recording_rules_test.yml

@@ -0,0 +1,25 @@
+evaluation_interval: 1m
+
+rule_files:
+- exporter_recording_rules.yml
+
+tests:
+- interval: 1m
+ name: DSExporterTest
+ input_series:
+ - series: "grafana_ds_up{check='appstudio-ds'}"
+ values: "1 1 1 1 1"
+ - series: "grafana_ds_up{check='github'}"
+ values: "0 0 0 0 0"
+ - series: "grafana_ds_up{other_label='sso'}"
+ values: "0 1 0 1 0"
+ promql_expr_test:
+ - expr: konflux_up
+ eval_time: 5m
+ exp_samples:
+ - labels: konflux_up{service='grafana', check='appstudio-ds'}
+ value: 1
+ - labels: konflux_up{service='grafana', check='github'}
+ value: 0
+ - labels: konflux_up{service='grafana', other_label='sso'}
+ value: 0