test(metrics): Install Prometheus (and the ServiceMonitor CRD) before the ServiceMonitor

Author: siegfriedweber

tests/templates/kuttl/metrics/10-install-prometheus.yaml

@@ -0,0 +1,14 @@
+---
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+commands:
+  # Append the namespace to the Helm release name so that cluster-wide
+  # resources get unique names.
+  - script: >
+      helm install prometheus-$NAMESPACE
+      --namespace $NAMESPACE
+      --version 80.14.2
+      --values 10_kube-prometheus-stack-values.yaml
+      --wait
+      oci://ghcr.io/prometheus-community/charts/kube-prometheus-stack
+    timeout: 600

…ics/11_kube-prometheus-stack-values.yaml …ics/10_kube-prometheus-stack-values.yamltests/templates/kuttl/metrics/11_kube-prometheus-stack-values.yaml renamed to tests/templates/kuttl/metrics/10_kube-prometheus-stack-values.yaml tests/templates/kuttl/metrics/11_kube-prometheus-stack-values.yaml renamed to tests/templates/kuttl/metrics/10_kube-prometheus-stack-values.yaml

@@ -0,0 +1,7 @@
+---
+apiVersion: kuttl.dev/v1beta1
+kind: TestStep
+commands:
+  - script: >
+      envsubst '$NAMESPACE' < 11_service-monitor.yaml |
+      kubectl apply -n $NAMESPACE -f -

tests/templates/kuttl/metrics/11-create-service-monitor.yaml

@@ -3,6 +3,8 @@ apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
   name: stackable-opensearch
+  labels:
+    release: prometheus-$NAMESPACE
 spec:
   selector:
     matchLabels: