chore: add pprof server to operator and sidecar

We add the pprof server to the operator and the sidecar, to avoid any
conflict with the CloudNativePG operator and clusters we use the port
6061

Closes #421

Signed-off-by: Jonathan Gonzalez V. <jonathan.gonzalez@enterprisedb.com>

internal/cmd/instance/main.go

@@ -40,6 +40,7 @@ func NewCmd() *cobra.Command {
 	_ = viper.BindEnv("spool-directory", "SPOOL_DIRECTORY")
 	_ = viper.BindEnv("custom-cnpg-group", "CUSTOM_CNPG_GROUP")
 	_ = viper.BindEnv("custom-cnpg-version", "CUSTOM_CNPG_VERSIONXS")
+	_ = viper.BindEnv("pprof-server", "PLUGIN_PPROF_SERVER")
 
 	return cmd
 }

internal/cmd/operator/main.go

@@ -84,5 +84,7 @@ func NewCmd() *cobra.Command {
 
 	_ = viper.BindEnv("sidecar-image", "SIDECAR_IMAGE")
 
+	_ = viper.BindEnv("pprof-server", "PPROF_SERVER")
+
 	return cmd
 }

internal/cnpgi/instance/manager.go

@@ -44,6 +44,7 @@ func Start(ctx context.Context) error {
 				},
 			},
 		},
+		PprofBindAddress: viper.GetString("pprof-server"),
 	}
 
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), controllerOptions)

internal/cnpgi/operator/lifecycle.go

@@ -332,7 +332,13 @@ func reconcilePodSpec(
 	}
 	sidecarTemplate.RestartPolicy = ptr.To(corev1.ContainerRestartPolicyAlways)
 	sidecarTemplate.Resources = config.resources
-
+	sidecarTemplate.Ports = []corev1.ContainerPort{
+		{
+			Name:          "pprof",
+			ContainerPort: 6061,
+			Protocol:      corev1.ProtocolTCP,
+		},
+	}
 	// merge the main container envs if they aren't already set
 	for _, container := range spec.Containers {
 		if container.Name == mainContainerName {

internal/cnpgi/operator/manager.go

@@ -104,6 +104,7 @@ func Start(ctx context.Context) error {
 		Metrics:                metricsServerOptions,
 		WebhookServer:          webhookServer,
 		HealthProbeBindAddress: viper.GetString("health-probe-bind-address"),
+		PprofBindAddress:       viper.GetString("pprof-server"),
 		LeaderElection:         viper.GetBool("leader-elect"),
 		LeaderElectionID:       "822e3f5c.cnpg.io",
 		// LeaderElectionReleaseOnCancel defines if the leader should step down voluntarily

kubernetes/deployment.yaml

@@ -27,6 +27,9 @@ spec:
         ports:
         - containerPort: 9090
           protocol: TCP
+        - containerPort: 6060
+          protocol: TCP
+          name: "pprof"
         env:
         - name: SIDECAR_IMAGE
           valueFrom:

manifest.yaml

@@ -932,6 +932,9 @@ spec:
         ports:
         - containerPort: 9090
           protocol: TCP
+        - containerPort: 6060
+          name: pprof
+          protocol: TCP
         readinessProbe:
           initialDelaySeconds: 10
           periodSeconds: 10