Add the cleanup call to backplane-api to delete investigation RBAC

After the investigation has ended we need to cleanup the created RBAC.
We will have garbage collection via managed-cluster-config in case this
fails. One can also delete it manually with backplane-cli.

Author: RaphaelBut

pkg/investigations/clustermonitoringerrorbudgetburn/clustermonitoringerrorbudgetburn.go

@@ -3,6 +3,7 @@ package clustermonitoringerrorbudgetburn
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"strings"
 
@@ -31,6 +32,13 @@ func Investigate(r *investigation.Resources) (investigation.InvestigationResult,
 	if err != nil {
 		return result, fmt.Errorf("unable to initialize k8s cli: %w", err)
 	}
+	defer func() {
+		deferErr := k8sclient.Cleanup(r.Cluster.ID(), r.OcmClient, r.Name)
+		if deferErr != nil {
+			logging.Error(deferErr)
+			err = errors.Join(err, deferErr)
+		}
+	}()
 
 	// Initialize PagerDuty note writer
 	notes := notewriter.New(r.Name, logging.RawLogger)

pkg/k8s/client.go

@@ -32,6 +32,14 @@ func New(clusterID string, ocmClient ocm.Client, remediation string) (client.Cli
 	return client.New(cfg, client.Options{Scheme: scheme})
 }
 
+func Cleanup(clusterID string, ocmClient ocm.Client, remediation string) error {
+	backplaneURL := os.Getenv("BACKPLANE_URL")
+	if backplaneURL == "" {
+		return fmt.Errorf("could not create new k8sclient: missing environment variable BACKPLANE_URL")
+	}
+	return bpremediation.DeleteRemediationWithConn(config.BackplaneConfiguration{URL: backplaneURL}, ocmClient.GetConnection(), clusterID, remediation)
+}
+
 // Initialize all apis we need in CAD
 func initScheme() (*runtime.Scheme, error) {
 	scheme := runtime.NewScheme()