Add support for IP Family Policy and IP Families

config/crd/bases/postgres-operator.crunchydata.com_postgresclusters.yaml

@@ -14663,6 +14663,23 @@ spec:
                             - Local
                             maxLength: 10
                             type: string
+                          ipFamilies:
+                            items:
+                              description: |-
+                                IPFamily represents the IP Family (IPv4 or IPv6). This type is used
+                                to express the family of an IP expressed by a type (e.g. service.spec.ipFamilies).
+                              enum:
+                              - IPv4
+                              - IPv6
+                              type: string
+                            type: array
+                          ipFamilyPolicy:
+                            description: 'More info: https://kubernetes.io/docs/reference/kubernetes-api/service-resources/service-v1/'
+                            enum:
+                            - SingleStack
+                            - PreferDualStack
+                            - RequireDualStack
+                            type: string
                           metadata:
                             description: Metadata contains metadata for custom resources
                             properties:
@@ -15005,6 +15022,23 @@ spec:
                     - Local
                     maxLength: 10
                     type: string
+                  ipFamilies:
+                    items:
+                      description: |-
+                        IPFamily represents the IP Family (IPv4 or IPv6). This type is used
+                        to express the family of an IP expressed by a type (e.g. service.spec.ipFamilies).
+                      enum:
+                      - IPv4
+                      - IPv6
+                      type: string
+                    type: array
+                  ipFamilyPolicy:
+                    description: 'More info: https://kubernetes.io/docs/reference/kubernetes-api/service-resources/service-v1/'
+                    enum:
+                    - SingleStack
+                    - PreferDualStack
+                    - RequireDualStack
+                    type: string
                   metadata:
                     description: Metadata contains metadata for custom resources
                     properties:
@@ -15053,6 +15087,23 @@ spec:
                     - Local
                     maxLength: 10
                     type: string
+                  ipFamilies:
+                    items:
+                      description: |-
+                        IPFamily represents the IP Family (IPv4 or IPv6). This type is used
+                        to express the family of an IP expressed by a type (e.g. service.spec.ipFamilies).
+                      enum:
+                      - IPv4
+                      - IPv6
+                      type: string
+                    type: array
+                  ipFamilyPolicy:
+                    description: 'More info: https://kubernetes.io/docs/reference/kubernetes-api/service-resources/service-v1/'
+                    enum:
+                    - SingleStack
+                    - PreferDualStack
+                    - RequireDualStack
+                    type: string
                   metadata:
                     description: Metadata contains metadata for custom resources
                     properties:
@@ -16749,6 +16800,23 @@ spec:
                             - Local
                             maxLength: 10
                             type: string
+                          ipFamilies:
+                            items:
+                              description: |-
+                                IPFamily represents the IP Family (IPv4 or IPv6). This type is used
+                                to express the family of an IP expressed by a type (e.g. service.spec.ipFamilies).
+                              enum:
+                              - IPv4
+                              - IPv6
+                              type: string
+                            type: array
+                          ipFamilyPolicy:
+                            description: 'More info: https://kubernetes.io/docs/reference/kubernetes-api/service-resources/service-v1/'
+                            enum:
+                            - SingleStack
+                            - PreferDualStack
+                            - RequireDualStack
+                            type: string
                           metadata:
                             description: Metadata contains metadata for custom resources
                             properties:

internal/controller/postgrescluster/cluster.go

@@ -267,6 +267,15 @@ func (r *Reconciler) generateClusterReplicaService(
 		}
 		service.Spec.ExternalTrafficPolicy = initialize.FromPointer(spec.ExternalTrafficPolicy)
 		service.Spec.InternalTrafficPolicy = spec.InternalTrafficPolicy
+
+		// Set IPFamilyPolicy and IPFamilies
+		if spec.IPFamilyPolicy != nil {
+			service.Spec.IPFamilyPolicy = spec.IPFamilyPolicy
+		}
+		if len(spec.IPFamilies) > 0 {
+			service.Spec.IPFamilies = spec.IPFamilies
+		}
+
 	}
 	service.Spec.Ports = []corev1.ServicePort{servicePort}
 

internal/controller/postgrescluster/patroni.go

@@ -271,6 +271,14 @@ func (r *Reconciler) generatePatroniLeaderLeaseService(
 		}
 		service.Spec.ExternalTrafficPolicy = initialize.FromPointer(spec.ExternalTrafficPolicy)
 		service.Spec.InternalTrafficPolicy = spec.InternalTrafficPolicy
+
+		// Set IPFamilyPolicy and IPFamilies
+		if spec.IPFamilyPolicy != nil {
+			service.Spec.IPFamilyPolicy = spec.IPFamilyPolicy
+		}
+		if len(spec.IPFamilies) > 0 {
+			service.Spec.IPFamilies = spec.IPFamilies
+		}
 	}
 	service.Spec.Ports = []corev1.ServicePort{servicePort}
 

internal/controller/postgrescluster/pgadmin.go

@@ -183,6 +183,14 @@ func (r *Reconciler) generatePGAdminService(
 		}
 		service.Spec.ExternalTrafficPolicy = initialize.FromPointer(spec.ExternalTrafficPolicy)
 		service.Spec.InternalTrafficPolicy = spec.InternalTrafficPolicy
+
+		// Set IPFamilyPolicy and IPFamilies
+		if spec.IPFamilyPolicy != nil {
+			service.Spec.IPFamilyPolicy = spec.IPFamilyPolicy
+		}
+		if len(spec.IPFamilies) > 0 {
+			service.Spec.IPFamilies = spec.IPFamilies
+		}
 	}
 	service.Spec.Ports = []corev1.ServicePort{servicePort}
 

internal/controller/postgrescluster/pgbouncer.go

@@ -306,6 +306,14 @@ func (r *Reconciler) generatePGBouncerService(
 		}
 		service.Spec.ExternalTrafficPolicy = initialize.FromPointer(spec.ExternalTrafficPolicy)
 		service.Spec.InternalTrafficPolicy = spec.InternalTrafficPolicy
+
+		// Set IPFamilyPolicy and IPFamilies
+		if spec.IPFamilyPolicy != nil {
+			service.Spec.IPFamilyPolicy = spec.IPFamilyPolicy
+		}
+		if len(spec.IPFamilies) > 0 {
+			service.Spec.IPFamilies = spec.IPFamilies
+		}
 	}
 	service.Spec.Ports = []corev1.ServicePort{servicePort}
 

pkg/apis/postgres-operator.crunchydata.com/v1beta1/shared_types.go

@@ -20,6 +20,7 @@ type SchemalessObject map[string]any
 // DeepCopy creates a new SchemalessObject by copying the receiver.
 func (in SchemalessObject) DeepCopy() SchemalessObject {
 	return runtime.DeepCopyJSON(in)
+
 }
 
 type ServiceSpec struct {
@@ -44,6 +45,16 @@ type ServiceSpec struct {
 	// +kubebuilder:validation:Enum={ClusterIP,NodePort,LoadBalancer}
 	Type string `json:"type"`
 
+	// More info: https://kubernetes.io/docs/reference/kubernetes-api/service-resources/service-v1/
+	// ---
+	// +optional
+	// +kubebuilder:validation:Enum=SingleStack;PreferDualStack;RequireDualStack
+	IPFamilyPolicy *corev1.IPFamilyPolicy `json:"ipFamilyPolicy,omitempty"`
+
+	// +optional
+	// +kubebuilder:validation:items:Enum={IPv4,IPv6}
+	IPFamilies []corev1.IPFamily `json:"ipFamilies,omitempty"`
+
 	// More info: https://kubernetes.io/docs/concepts/services-networking/service/#traffic-policies
 	// ---
 	// Kubernetes assumes the evaluation cost of an enum value is very large.