Fix metrics TLS certificate parameters (#1128)

Signed-off-by: Ruben Vargas <ruben.vp8510@gmail.com>

Author: rubenvp8510

bundle/community/manifests/tempo-operator.clusterserviceversion.yaml

@@ -74,7 +74,7 @@ metadata:
     capabilities: Deep Insights
     categories: Logging & Tracing,Monitoring
     containerImage: ghcr.io/grafana/tempo-operator/tempo-operator:v0.15.1
-    createdAt: "2025-02-17T13:21:50Z"
+    createdAt: "2025-02-20T06:15:35Z"
     description: Create and manage deployments of Tempo, a high-scale distributed
       tracing backend.
     operatorframework.io/cluster-monitoring: "true"

bundle/openshift/manifests/tempo-operator.clusterserviceversion.yaml

@@ -74,7 +74,7 @@ metadata:
     capabilities: Deep Insights
     categories: Logging & Tracing,Monitoring
     containerImage: ghcr.io/grafana/tempo-operator/tempo-operator:v0.15.1
-    createdAt: "2025-02-17T13:21:48Z"
+    createdAt: "2025-02-20T06:15:33Z"
     description: Create and manage deployments of Tempo, a high-scale distributed
       tracing backend.
     operatorframework.io/cluster-monitoring: "true"
@@ -1516,8 +1516,7 @@ spec:
                 - --zap-log-level=info
                 - start
                 - --config=controller_manager_config.yaml
-                - --metrics-tls-private-key-file=/var/run/tls/server/tls.key
-                - --metrics-tls-cert-file=/var/run/tls/server/tls.crt
+                - --metrics-tls-cert-dir=/var/run/tls/server/
                 env:
                 - name: RELATED_IMAGE_TEMPO
                   value: docker.io/grafana/tempo:2.7.1

cmd/start/main.go

@@ -32,8 +32,13 @@ func start(c *cobra.Command, args []string) {
 	version := version.Get()
 
 	options.PprofBindAddress, _ = c.Flags().GetString("pprof-addr")
-	options.Metrics.CertName, _ = c.Flags().GetString("metrics-tls-cert-file")
-	options.Metrics.KeyName, _ = c.Flags().GetString("metrics-tls-private-key-file")
+
+	certDir, _ := c.Flags().GetString("metrics-tls-cert-dir")
+	if certDir != "" {
+		options.Metrics.CertDir = certDir
+		options.Metrics.CertName, _ = c.Flags().GetString("metrics-tls-cert-file")
+		options.Metrics.KeyName, _ = c.Flags().GetString("metrics-tls-private-key-file")
+	}
 
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), options)
 	if err != nil {
@@ -162,7 +167,8 @@ func NewStartCommand() *cobra.Command {
 		Run:   start,
 	}
 	cmd.Flags().String("pprof-addr", "", "The address the pprof server binds to. Default is empty string which disables the pprof server.")
-	cmd.Flags().String("metrics-tls-cert-file", "", "TLS certificate used by metrics server")
-	cmd.Flags().String("metrics-tls-private-key-file", "", "TLS key used by metrics server")
+	cmd.Flags().String("metrics-tls-cert-dir", "", "TLS certificate used by metrics server")
+	cmd.Flags().String("metrics-tls-cert-file", "tls.crt", "TLS certificate used by metrics server")
+	cmd.Flags().String("metrics-tls-private-key-file", "tls.key", "TLS key used by metrics server")
 	return cmd
 }

config/overlays/openshift/patch_tls_metrics_args.yaml

@@ -1,10 +1,6 @@
 - op: add
   path: /spec/template/spec/containers/0/args/-
-  value: --metrics-tls-private-key-file=/var/run/tls/server/tls.key
-
-- op: add
-  path: /spec/template/spec/containers/0/args/-
-  value: --metrics-tls-cert-file=/var/run/tls/server/tls.crt
+  value: --metrics-tls-cert-dir=/var/run/tls/server/
 
 - op: add
   path: /spec/template/spec/volumes/-