Add config switch to share pg_socket in /var/run/postgresql via an emptyDir with the sidecar containers (#962)

pkg/apis/acid.zalan.do/v1/crds.go

@@ -1289,6 +1289,9 @@ var OperatorConfigCRDResourceValidation = apiextv1.CustomResourceValidation{
 									},
 								},
 							},
+							"share_pg_socket_with_sidecars": {
+								Type: "boolean",
+							},
 							"infrastructure_roles_secret_name": {
 								Type: "string",
 							},

pkg/apis/acid.zalan.do/v1/operator_configuration_type.go

@@ -72,6 +72,7 @@ type KubernetesMetaConfiguration struct {
 	StorageResizeMode                      string                       `json:"storage_resize_mode,omitempty"`
 	EnableInitContainers                   *bool                        `json:"enable_init_containers,omitempty"`
 	EnableSidecars                         *bool                        `json:"enable_sidecars,omitempty"`
+	SharePGSocketWithSidecars              *bool                        `json:"share_pgsocket_with_sidecars,omitempty"`
 	SecretNameTemplate                     config.StringTemplate        `json:"secret_name_template,omitempty"`
 	ClusterDomain                          string                       `json:"cluster_domain,omitempty"`
 	OAuthTokenSecretName                   spec.NamespacedName          `json:"oauth_token_secret_name,omitempty"`

pkg/apis/acid.zalan.do/v1/zz_generated.deepcopy.go

@@ -193,6 +193,11 @@ func (in *KubernetesMetaConfiguration) DeepCopyInto(out *KubernetesMetaConfigura
 		*out = new(bool)
 		**out = **in
 	}
+	if in.SharePGSocketWithSidecars != nil {
+		in, out := &in.SharePGSocketWithSidecars, &out.SharePGSocketWithSidecars
+		*out = new(bool)
+		**out = **in
+	}
 	out.OAuthTokenSecretName = in.OAuthTokenSecretName
 	out.InfrastructureRolesSecretName = in.InfrastructureRolesSecretName
 	if in.InfrastructureRolesDefs != nil {