refactor to use the upstream type

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

@@ -14665,6 +14665,9 @@ spec:
                             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
@@ -15021,6 +15024,9 @@ spec:
                     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
@@ -15083,6 +15089,9 @@ spec:
                     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
@@ -16793,6 +16802,9 @@ spec:
                             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

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

@@ -23,9 +23,6 @@ func (in SchemalessObject) DeepCopy() SchemalessObject {
 
 }
 
-// +kubebuilder:validation:Enum=IPv4;IPv6
-type IPFamily string
-
 type ServiceSpec struct {
 	// +optional
 	Metadata *Metadata `json:"metadata,omitempty"`
@@ -52,10 +49,11 @@ type ServiceSpec struct {
 	// ---
 	// +optional
 	// +kubebuilder:validation:Enum=SingleStack;PreferDualStack;RequireDualStack
-	IPFamilyPolicy string `json:"ipFamilyPolicy,omitempty"`
+	IPFamilyPolicy *corev1.IPFamilyPolicy `json:"ipFamilyPolicy,omitempty"`
 
 	// +optional
-	IPFamilies []IPFamily `json:"ipFamilies,omitempty"`
+	// +kubebuilder:validation:items:Enum={IPv4,IPv6}
+	IPFamilies []corev1.IPFamily `json:"ipFamilies,omitempty"`
 
 	// More info: https://kubernetes.io/docs/concepts/services-networking/service/#traffic-policies
 	// ---