Add PostgreSQL observability telemetry exposure via ServiceMonitors

api/v4/postgrescluster_types.go

@@ -108,6 +108,27 @@ type PostgresClusterSpec struct {
 	// +kubebuilder:default=Retain
 	// +optional
 	ClusterDeletionPolicy *string `json:"clusterDeletionPolicy,omitempty"`
+
+	// Observability contains configuration for metrics exposure features.
+	// +optional
+	Observability *PostgresObservabilityOverride `json:"observability,omitempty"`
+}
+
+// PostgresObservabilityOverride overrides observability configuration options for PostgresClusterClass.
+type PostgresObservabilityOverride struct {
+
+	// +optional
+	PostgreSQL *FeatureDisableOverride `json:"postgresql,omitempty"`
+
+	// +optional
+	PgBouncer *FeatureDisableOverride `json:"pgbouncer,omitempty"`
+}
+
+type FeatureDisableOverride struct {
+	// Disable set to true will disable the feature even if it's enabled in the class.
+	// +kubebuilder:default=false
+	// +optional
+	Disabled *bool `json:"disabled,omitempty"`
 }
 
 // PostgresClusterResources defines references to Kubernetes resources related to the PostgresCluster, such as ConfigMaps and Secrets.

api/v4/postgresclusterclass_types.go

@@ -99,6 +99,13 @@ type PostgresClusterClassConfig struct {
 	// +kubebuilder:default=false
 	// +optional
 	ConnectionPoolerEnabled *bool `json:"connectionPoolerEnabled,omitempty"`
+
+	// Observability contains configuration for metrics exposure.
+	// When enabled, creates metrics resources for clusters using this class.
+	// Can be overridden in PostgresCluster CR.
+	// +kubebuilder:default={}
+	// +optional
+	Observability *PostgresObservabilityClassConfig `json:"observability,omitempty"`
 }
 
 // ConnectionPoolerMode defines the PgBouncer connection pooling strategy.
@@ -172,6 +179,20 @@ type PostgresClusterClassStatus struct {
 	Phase *string `json:"phase,omitempty"`
 }
 
+type PostgresObservabilityClassConfig struct {
+	// +optional
+	PostgreSQL *MetricsClassConfig `json:"postgresql,omitempty"`
+	// +optional
+	PgBouncer *MetricsClassConfig `json:"pgbouncer,omitempty"`
+}
+
+type MetricsClassConfig struct {
+	// Enabled controls whether metrics resources should be created for this target.
+	// +kubebuilder:default=false
+	// +optional
+	Enabled *bool `json:"enabled,omitempty"`
+}
+
 // +kubebuilder:object:root=true
 // +kubebuilder:subresource:status
 // +kubebuilder:resource:scope=Cluster

cmd/main.go

@@ -55,6 +55,7 @@ import (
 	"github.com/splunk/splunk-operator/internal/controller"
 
 	cnpgv1 "github.com/cloudnative-pg/cloudnative-pg/api/v1"
+	monitoringv1 "github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring/v1"
 	//+kubebuilder:scaffold:imports
 	//extapi "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
 )
@@ -69,6 +70,7 @@ func init() {
 	utilruntime.Must(enterpriseApi.AddToScheme(scheme))
 	utilruntime.Must(enterpriseApiV3.AddToScheme(scheme))
 	utilruntime.Must(cnpgv1.AddToScheme(scheme))
+	utilruntime.Must(monitoringv1.AddToScheme(scheme))
 	//+kubebuilder:scaffold:scheme
 	//utilruntime.Must(extapi.AddToScheme(scheme))
 }

config/samples/enterprise_v4_postgresclusterclass_dev.yaml

@@ -27,6 +27,11 @@ spec:
         cpu: "1"
         memory: "2Gi"
     connectionPoolerEnabled: true
+    observability:
+      postgresql:
+        enabled: true
+      pgbouncer:
+        enabled: true
 
   cnpg:
     # Restart method - tolerate downtime in dev
@@ -36,4 +41,3 @@ spec:
       mode: transaction
       config:
         max_client_conn: "100"
-