polish global config about sharing postgresql-run socket (#2155)

* polish global config about sharing postgresql-run socket

charts/postgres-operator/crds/operatorconfigurations.yaml

@@ -314,6 +314,9 @@ spec:
                   secret_name_template:
                     type: string
                     default: "{username}.{cluster}.credentials.{tprkind}.{tprgroup}"
+                  share_pgsocket_with_sidecars:
+                    type: boolean
+                    default: false
                   spilo_allow_privilege_escalation:
                     type: boolean
                     default: true

charts/postgres-operator/values.yaml

@@ -191,9 +191,12 @@ configKubernetes:
   # if the user is in different namespace than cluster and cross namespace secrets
   # are enabled via `enable_cross_namespace_secret` flag in the configuration.
   secret_name_template: "{username}.{cluster}.credentials.{tprkind}.{tprgroup}"
+  # sharing unix socket of PostgreSQL (`pg_socket`) with the sidecars
+  share_pgsocket_with_sidecars: false
   # set user and group for the spilo container (required to run Spilo as non-root process)
   # spilo_runasuser: 101
   # spilo_runasgroup: 103
+
   # group ID with write-access to volumes (required to run Spilo as non-root process)
   # spilo_fsgroup: 103
 

docs/reference/operator_parameters.md

@@ -344,7 +344,7 @@ configuration they are grouped under the `kubernetes` key.
   to run alongside Spilo on the same pod. Globally defined sidecars are always
   enabled. Default is true.
 
-* **share_pg_socket_with_sidecars**
+* **share_pgsocket_with_sidecars**
   global option to create an emptyDir volume named `postgresql-run`. This is
   mounted by all containers at `/var/run/postgresql` sharing the unix socket of
   PostgreSQL (`pg_socket`) with the sidecars this way.

docs/user.md

@@ -1008,11 +1008,39 @@ If you want to add a sidecar to every cluster managed by the operator, you can s
 
 ### Accessing the PostgreSQL socket from sidecars
 
-If enabled by the `share_pg_socket_with_sidecars` option in the operator
+If enabled by the `share_pgsocket_with_sidecars` option in the operator
-configuration the PostgreSQL socket is placed in a volume of type
+configuration the PostgreSQL socket is placed in a volume of type `emptyDir`
-`emptyDir` named `postgresql-run`.
+named `postgresql-run`. To allow access to the socket from any sidecar
-To allow access to the socket from any sidecar container simply add a
+container simply add a VolumeMount to this volume to your sidecar spec.
-VolumeMount to this volume to your sidecar spec.
+
+```yaml
+  - name: "container-name"
+    image: "company/image:tag"
+    volumeMounts:
+    - mountPath: /var/run
+      name: postgresql-run
+```
+
+If you do not want to globally enable this feature and only use it for single
+Postgres clusters, specify an `EmptyDir` volume under `additionalVolumes` in
+the manifest:
+
+```yaml
+spec:
+  additionalVolumes:
+  - name: postgresql-run
+    mountPath: /var/run/postgresql
+    targetContainers:
+    - all
+    volumeSource:
+      emptyDir: {}
+  sidecars: 
+  - name: "container-name"
+    image: "company/image:tag"
+    volumeMounts:
+    - mountPath: /var/run
+      name: postgresql-run
+```
 
 ## InitContainers Support
 

manifests/configmap.yaml

@@ -134,6 +134,7 @@ data:
   ring_log_lines: "100"
   role_deletion_suffix: "_deleted"
   secret_name_template: "{username}.{cluster}.credentials.{tprkind}.{tprgroup}"
+  share_pgsocket_with_sidecars: "false"
   # sidecar_docker_images: ""
   # set_memory_request_to_limit: "false"
   spilo_allow_privilege_escalation: "true"

manifests/operatorconfiguration.crd.yaml

@@ -222,9 +222,6 @@ spec:
                     type: array
                     items:
                       type: string
-                  share_pg_socket_with_sidecars:
-                    type: boolean
-                    default: false
                   infrastructure_roles_secret_name:
                     type: string
                   infrastructure_roles_secrets:
@@ -312,6 +309,9 @@ spec:
                   secret_name_template:
                     type: string
                     default: "{username}.{cluster}.credentials.{tprkind}.{tprgroup}"
+                  share_pgsocket_with_sidecars:
+                    type: boolean
+                    default: false
                   spilo_allow_privilege_escalation:
                     type: boolean
                     default: true

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

@@ -1289,9 +1289,6 @@ var OperatorConfigCRDResourceValidation = apiextv1.CustomResourceValidation{
 									},
 								},
 							},
-							"share_pg_socket_with_sidecars": {
-								Type: "boolean",
-							},
 							"infrastructure_roles_secret_name": {
 								Type: "string",
 							},
@@ -1419,6 +1416,9 @@ var OperatorConfigCRDResourceValidation = apiextv1.CustomResourceValidation{
 							"secret_name_template": {
 								Type: "string",
 							},
+							"share_pgsocket_with_sidecars": {
+								Type: "boolean",
+							},
 							"spilo_runasuser": {
 								Type: "integer",
 							},

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

@@ -72,7 +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"`
+	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

@@ -193,8 +193,8 @@ func (in *KubernetesMetaConfiguration) DeepCopyInto(out *KubernetesMetaConfigura
 		*out = new(bool)
 		**out = **in
 	}
-	if in.SharePGSocketWithSidecars != nil {
+	if in.SharePgSocketWithSidecars != nil {
-		in, out := &in.SharePGSocketWithSidecars, &out.SharePGSocketWithSidecars
+		in, out := &in.SharePgSocketWithSidecars, &out.SharePgSocketWithSidecars
 		*out = new(bool)
 		**out = **in
 	}

pkg/cluster/k8sres.go

@@ -723,7 +723,7 @@ func (c *Cluster) generatePodTemplate(
 	spiloContainer *v1.Container,
 	initContainers []v1.Container,
 	sidecarContainers []v1.Container,
-	sharePGSocketWithSidecars *bool,
+	sharePgSocketWithSidecars *bool,
 	tolerationsSpec *[]v1.Toleration,
 	spiloRunAsUser *int64,
 	spiloRunAsGroup *int64,
@@ -792,7 +792,7 @@ func (c *Cluster) generatePodTemplate(
 		podSpec.PriorityClassName = priorityClassName
 	}
 
-	if sharePGSocketWithSidecars != nil && *sharePGSocketWithSidecars {
+	if sharePgSocketWithSidecars != nil && *sharePgSocketWithSidecars {
 		addVarRunVolume(&podSpec)
 	}
 
@@ -1378,7 +1378,7 @@ func (c *Cluster) generateStatefulSet(spec *acidv1.PostgresSpec) (*appsv1.Statef
 		spiloContainer,
 		initContainers,
 		sidecarContainers,
-		c.OpConfig.SharePGSocketWithSidecars,
+		c.OpConfig.SharePgSocketWithSidecars,
 		&tolerationSpec,
 		effectiveRunAsUser,
 		effectiveRunAsGroup,
@@ -1586,8 +1586,8 @@ func addVarRunVolume(podSpec *v1.PodSpec) {
 	for i := range podSpec.Containers {
 		mounts := append(podSpec.Containers[i].VolumeMounts,
 			v1.VolumeMount{
-				Name:      "postgresql-run",
+				Name:      constants.RunVolumeName,
-				MountPath: "/var/run/postgresql",
+				MountPath: constants.RunVolumePath,
 			})
 		podSpec.Containers[i].VolumeMounts = mounts
 	}

pkg/cluster/k8sres_test.go

@@ -64,7 +64,6 @@ func TestGenerateSpiloJSONConfiguration(t *testing.T) {
 			},
 		}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
 
-	testName := "TestGenerateSpiloConfig"
 	tests := []struct {
 		subtest  string
 		pgParam  *acidv1.PostgresqlParam
@@ -159,13 +158,12 @@ func TestGenerateSpiloJSONConfiguration(t *testing.T) {
 		}
 		if tt.result != result {
 			t.Errorf("%s %s: Spilo Config is %v, expected %v for role %#v and param %#v",
-				testName, tt.subtest, result, tt.result, tt.opConfig.Auth.PamRoleName, tt.pgParam)
+				t.Name(), tt.subtest, result, tt.result, tt.opConfig.Auth.PamRoleName, tt.pgParam)
 		}
 	}
 }
 
 func TestExtractPgVersionFromBinPath(t *testing.T) {
-	testName := "TestExtractPgVersionFromBinPath"
 	tests := []struct {
 		subTest  string
 		binPath  string
@@ -199,7 +197,7 @@ func TestExtractPgVersionFromBinPath(t *testing.T) {
 		}
 		if pgVersion != tt.expected {
 			t.Errorf("%s %s: Expected version %s, have %s instead",
-				testName, tt.subTest, tt.expected, pgVersion)
+				t.Name(), tt.subTest, tt.expected, pgVersion)
 		}
 	}
 }
@@ -287,7 +285,6 @@ func newMockCluster(opConfig config.Config) *Cluster {
 }
 
 func TestPodEnvironmentConfigMapVariables(t *testing.T) {
-	testName := "TestPodEnvironmentConfigMapVariables"
 	tests := []struct {
 		subTest  string
 		opConfig config.Config
@@ -343,17 +340,17 @@ func TestPodEnvironmentConfigMapVariables(t *testing.T) {
 		vars, err := c.getPodEnvironmentConfigMapVariables()
 		if !reflect.DeepEqual(vars, tt.envVars) {
 			t.Errorf("%s %s: expected `%v` but got `%v`",
-				testName, tt.subTest, tt.envVars, vars)
+				t.Name(), tt.subTest, tt.envVars, vars)
 		}
 		if tt.err != nil {
 			if err.Error() != tt.err.Error() {
 				t.Errorf("%s %s: expected error `%v` but got `%v`",
-					testName, tt.subTest, tt.err, err)
+					t.Name(), tt.subTest, tt.err, err)
 			}
 		} else {
 			if err != nil {
 				t.Errorf("%s %s: expected no error but got error: `%v`",
-					testName, tt.subTest, err)
+					t.Name(), tt.subTest, err)
 			}
 		}
 	}
@@ -362,7 +359,6 @@ func TestPodEnvironmentConfigMapVariables(t *testing.T) {
 // Test if the keys of an existing secret are properly referenced
 func TestPodEnvironmentSecretVariables(t *testing.T) {
 	maxRetries := int(testResourceCheckTimeout / testResourceCheckInterval)
-	testName := "TestPodEnvironmentSecretVariables"
 	tests := []struct {
 		subTest  string
 		opConfig config.Config
@@ -448,17 +444,17 @@ func TestPodEnvironmentSecretVariables(t *testing.T) {
 		sort.Slice(vars, func(i, j int) bool { return vars[i].Name < vars[j].Name })
 		if !reflect.DeepEqual(vars, tt.envVars) {
 			t.Errorf("%s %s: expected `%v` but got `%v`",
-				testName, tt.subTest, tt.envVars, vars)
+				t.Name(), tt.subTest, tt.envVars, vars)
 		}
 		if tt.err != nil {
 			if err.Error() != tt.err.Error() {
 				t.Errorf("%s %s: expected error `%v` but got `%v`",
-					testName, tt.subTest, tt.err, err)
+					t.Name(), tt.subTest, tt.err, err)
 			}
 		} else {
 			if err != nil {
 				t.Errorf("%s %s: expected no error but got error: `%v`",
-					testName, tt.subTest, err)
+					t.Name(), tt.subTest, err)
 			}
 		}
 	}
@@ -657,7 +653,6 @@ func TestGenerateSpiloPodEnvVars(t *testing.T) {
 		},
 	}
 
-	testName := "TestGenerateSpiloPodEnvVars"
 	tests := []struct {
 		subTest            string
 		opConfig           config.Config
@@ -895,27 +890,26 @@ func TestGenerateSpiloPodEnvVars(t *testing.T) {
 
 			if env.Name != ev.envVarConstant {
 				t.Errorf("%s %s: expected env name %s, have %s instead",
-					testName, tt.subTest, ev.envVarConstant, env.Name)
+					t.Name(), tt.subTest, ev.envVarConstant, env.Name)
 			}
 
 			if ev.envVarValueRef != nil {
 				if !reflect.DeepEqual(env.ValueFrom, ev.envVarValueRef) {
 					t.Errorf("%s %s: expected env value reference %#v, have %#v instead",
-						testName, tt.subTest, ev.envVarValueRef, env.ValueFrom)
+						t.Name(), tt.subTest, ev.envVarValueRef, env.ValueFrom)
 				}
 				continue
 			}
 
 			if env.Value != ev.envVarValue {
 				t.Errorf("%s %s: expected env value %s, have %s instead",
-					testName, tt.subTest, ev.envVarValue, env.Value)
+					t.Name(), tt.subTest, ev.envVarValue, env.Value)
 			}
 		}
 	}
 }
 
 func TestGetNumberOfInstances(t *testing.T) {
-	testName := "TestGetNumberOfInstances"
 	tests := []struct {
 		subTest         string
 		config          config.Config
@@ -1039,13 +1033,12 @@ func TestGetNumberOfInstances(t *testing.T) {
 
 		if numInstances != tt.provided {
 			t.Errorf("%s %s: Expected to get %d instances, have %d instead",
-				testName, tt.subTest, tt.provided, numInstances)
+				t.Name(), tt.subTest, tt.provided, numInstances)
 		}
 	}
 }
 
 func TestCloneEnv(t *testing.T) {
-	testName := "TestCloneEnv"
 	tests := []struct {
 		subTest   string
 		cloneOpts *acidv1.CloneDescription
@@ -1112,18 +1105,17 @@ func TestCloneEnv(t *testing.T) {
 
 		if env.Name != tt.env.Name {
 			t.Errorf("%s %s: Expected env name %s, have %s instead",
-				testName, tt.subTest, tt.env.Name, env.Name)
+				t.Name(), tt.subTest, tt.env.Name, env.Name)
 		}
 
 		if env.Value != tt.env.Value {
 			t.Errorf("%s %s: Expected env value %s, have %s instead",
-				testName, tt.subTest, tt.env.Value, env.Value)
+				t.Name(), tt.subTest, tt.env.Value, env.Value)
 		}
 	}
 }
 
 func TestAppendEnvVar(t *testing.T) {
-	testName := "TestAppendEnvVar"
 	tests := []struct {
 		subTest      string
 		envs         []v1.EnvVar
@@ -1179,7 +1171,7 @@ func TestAppendEnvVar(t *testing.T) {
 
 		if len(finalEnvs) != tt.expectedSize {
 			t.Errorf("%s %s: expected %d env variables, got %d",
-				testName, tt.subTest, tt.expectedSize, len(finalEnvs))
+				t.Name(), tt.subTest, tt.expectedSize, len(finalEnvs))
 		}
 
 		for _, env := range tt.envs {
@@ -1187,7 +1179,7 @@ func TestAppendEnvVar(t *testing.T) {
 				if env.Name == finalEnv.Name {
 					if env.Value != finalEnv.Value {
 						t.Errorf("%s %s: expected env value %s of variable %s, got %s instead",
-							testName, tt.subTest, env.Value, env.Name, finalEnv.Value)
+							t.Name(), tt.subTest, env.Value, env.Name, finalEnv.Value)
 					}
 				}
 			}
@@ -1196,7 +1188,6 @@ func TestAppendEnvVar(t *testing.T) {
 }
 
 func TestStandbyEnv(t *testing.T) {
-	testName := "TestStandbyEnv"
 	tests := []struct {
 		subTest     string
 		standbyOpts *acidv1.StandbyDescription
@@ -1279,17 +1270,17 @@ func TestStandbyEnv(t *testing.T) {
 
 		if env.Name != tt.env.Name {
 			t.Errorf("%s %s: Expected env name %s, have %s instead",
-				testName, tt.subTest, tt.env.Name, env.Name)
+				t.Name(), tt.subTest, tt.env.Name, env.Name)
 		}
 
 		if env.Value != tt.env.Value {
 			t.Errorf("%s %s: Expected env value %s, have %s instead",
-				testName, tt.subTest, tt.env.Value, env.Value)
+				t.Name(), tt.subTest, tt.env.Value, env.Value)
 		}
 
 		if len(envs) != tt.envLen {
 			t.Errorf("%s %s: Expected number of env variables %d, have %d instead",
-				testName, tt.subTest, tt.envLen, len(envs))
+				t.Name(), tt.subTest, tt.envLen, len(envs))
 		}
 	}
 }
@@ -1471,8 +1462,59 @@ func testServiceOwnerReference(cluster *Cluster, service *v1.Service, role Postg
 	return nil
 }
 
-func TestTLS(t *testing.T) {
+func TestSharePgSocketWithSidecars(t *testing.T) {
+	tests := []struct {
+		subTest   string
+		podSpec   *v1.PodSpec
+		runVolPos int
+	}{
+		{
+			subTest: "empty PodSpec",
+			podSpec: &v1.PodSpec{
+				Volumes: []v1.Volume{},
+				Containers: []v1.Container{
+					{
+						VolumeMounts: []v1.VolumeMount{},
+					},
+				},
+			},
+			runVolPos: 0,
+		},
+		{
+			subTest: "non empty PodSpec",
+			podSpec: &v1.PodSpec{
+				Volumes: []v1.Volume{{}},
+				Containers: []v1.Container{
+					{
+						Name: "postgres",
+						VolumeMounts: []v1.VolumeMount{
+							{},
+						},
+					},
+				},
+			},
+			runVolPos: 1,
+		},
+	}
+	for _, tt := range tests {
+		addVarRunVolume(tt.podSpec)
+		postgresContainer := getPostgresContainer(tt.podSpec)
 
+		volumeName := tt.podSpec.Volumes[tt.runVolPos].Name
+		volumeMountName := postgresContainer.VolumeMounts[tt.runVolPos].Name
+
+		if volumeName != constants.RunVolumeName {
+			t.Errorf("%s %s: Expected volume %s was not created, have %s instead",
+				t.Name(), tt.subTest, constants.RunVolumeName, volumeName)
+		}
+		if volumeMountName != constants.RunVolumeName {
+			t.Errorf("%s %s: Expected mount %s was not created, have %s instead",
+				t.Name(), tt.subTest, constants.RunVolumeName, volumeMountName)
+		}
+	}
+}
+
+func TestTLS(t *testing.T) {
 	client, _ := newFakeK8sTestClient()
 	clusterName := "acid-test-cluster"
 	namespace := "default"
@@ -1561,7 +1603,6 @@ func TestTLS(t *testing.T) {
 }
 
 func TestShmVolume(t *testing.T) {
-	testName := "TestShmVolume"
 	tests := []struct {
 		subTest string
 		podSpec *v1.PodSpec
@@ -1604,17 +1645,16 @@ func TestShmVolume(t *testing.T) {
 
 		if volumeName != constants.ShmVolumeName {
 			t.Errorf("%s %s: Expected volume %s was not created, have %s instead",
-				testName, tt.subTest, constants.ShmVolumeName, volumeName)
+				t.Name(), tt.subTest, constants.ShmVolumeName, volumeName)
 		}
 		if volumeMountName != constants.ShmVolumeName {
 			t.Errorf("%s %s: Expected mount %s was not created, have %s instead",
-				testName, tt.subTest, constants.ShmVolumeName, volumeMountName)
+				t.Name(), tt.subTest, constants.ShmVolumeName, volumeMountName)
 		}
 	}
 }
 
 func TestSecretVolume(t *testing.T) {
-	testName := "TestSecretVolume"
 	tests := []struct {
 		subTest   string
 		podSpec   *v1.PodSpec
@@ -1664,7 +1704,7 @@ func TestSecretVolume(t *testing.T) {
 
 		if volumeName != additionalSecretMount {
 			t.Errorf("%s %s: Expected volume %s was not created, have %s instead",
-				testName, tt.subTest, additionalSecretMount, volumeName)
+				t.Name(), tt.subTest, additionalSecretMount, volumeName)
 		}
 
 		for i := range tt.podSpec.Containers {
@@ -1672,7 +1712,7 @@ func TestSecretVolume(t *testing.T) {
 
 			if volumeMountName != additionalSecretMount {
 				t.Errorf("%s %s: Expected mount %s was not created, have %s instead",
-					testName, tt.subTest, additionalSecretMount, volumeMountName)
+					t.Name(), tt.subTest, additionalSecretMount, volumeMountName)
 			}
 		}
 
@@ -1687,8 +1727,6 @@ func TestSecretVolume(t *testing.T) {
 }
 
 func TestAdditionalVolume(t *testing.T) {
-	testName := "TestAdditionalVolume"
-
 	client, _ := newFakeK8sTestClient()
 	clusterName := "acid-test-cluster"
 	namespace := "default"
@@ -1800,14 +1838,13 @@ func TestAdditionalVolume(t *testing.T) {
 
 			if !util.IsEqualIgnoreOrder(mounts, tt.expectedMounts) {
 				t.Errorf("%s %s: different volume mounts: got %v, epxected %v",
-					testName, tt.subTest, mounts, tt.expectedMounts)
+					t.Name(), tt.subTest, mounts, tt.expectedMounts)
 			}
 		}
 	}
 }
 
 func TestVolumeSelector(t *testing.T) {
-	testName := "TestVolumeSelector"
 	makeSpec := func(volume acidv1.Volume) acidv1.PostgresSpec {
 		return acidv1.PostgresSpec{
 			TeamID:            "myapp",
@@ -1888,7 +1925,7 @@ func TestVolumeSelector(t *testing.T) {
 		pgSpec := makeSpec(tt.volume)
 		sts, err := cluster.generateStatefulSet(&pgSpec)
 		if err != nil {
-			t.Fatalf("%s %s: no statefulset created %v", testName, tt.subTest, err)
+			t.Fatalf("%s %s: no statefulset created %v", t.Name(), tt.subTest, err)
 		}
 
 		volIdx := len(sts.Spec.VolumeClaimTemplates)
@@ -1899,12 +1936,12 @@ func TestVolumeSelector(t *testing.T) {
 			}
 		}
 		if volIdx == len(sts.Spec.VolumeClaimTemplates) {
-			t.Errorf("%s %s: no datavolume found in sts", testName, tt.subTest)
+			t.Errorf("%s %s: no datavolume found in sts", t.Name(), tt.subTest)
 		}
 
 		selector := sts.Spec.VolumeClaimTemplates[volIdx].Spec.Selector
 		if !reflect.DeepEqual(selector, tt.wantSelector) {
-			t.Errorf("%s %s: expected: %#v but got: %#v", testName, tt.subTest, tt.wantSelector, selector)
+			t.Errorf("%s %s: expected: %#v but got: %#v", t.Name(), tt.subTest, tt.wantSelector, selector)
 		}
 	}
 }
@@ -2320,7 +2357,6 @@ func TestCreateLoadBalancerLogic(t *testing.T) {
 			},
 		}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger, eventRecorder)
 
-	testName := "TestCreateLoadBalancerLogic"
 	tests := []struct {
 		subtest  string
 		role     PostgresRole
@@ -2362,7 +2398,7 @@ func TestCreateLoadBalancerLogic(t *testing.T) {
 		result := cluster.shouldCreateLoadBalancerForService(tt.role, tt.spec)
 		if tt.result != result {
 			t.Errorf("%s %s: Load balancer is %t, expect %t for role %#v and spec %#v",
-				testName, tt.subtest, result, tt.result, tt.role, tt.spec)
+				t.Name(), tt.subtest, result, tt.result, tt.role, tt.spec)
 		}
 	}
 }
@@ -2410,7 +2446,6 @@ func getServices(serviceType v1.ServiceType, sourceRanges []string, extTrafficPo
 }
 
 func TestEnableLoadBalancers(t *testing.T) {
-	testName := "Test enabling LoadBalancers"
 	client, _ := newLBFakeClient()
 	clusterName := "acid-test-cluster"
 	namespace := "default"
@@ -2545,13 +2580,12 @@ func TestEnableLoadBalancers(t *testing.T) {
 			generatedServices = append(generatedServices, cluster.ConnectionPooler[role].Service.Spec)
 		}
 		if !reflect.DeepEqual(tt.expectedServices, generatedServices) {
-			t.Errorf("%s %s: expected %#v but got %#v", testName, tt.subTest, tt.expectedServices, generatedServices)
+			t.Errorf("%s %s: expected %#v but got %#v", t.Name(), tt.subTest, tt.expectedServices, generatedServices)
 		}
 	}
 }
 
 func TestGenerateResourceRequirements(t *testing.T) {
-	testName := "TestGenerateResourceRequirements"
 	client, _ := newFakeK8sTestClient()
 	clusterName := "acid-test-cluster"
 	namespace := "default"
@@ -2921,14 +2955,12 @@ func TestGenerateResourceRequirements(t *testing.T) {
 		}
 		assert.NoError(t, err)
 		if !reflect.DeepEqual(tt.expectedResources, clusterResources) {
-			t.Errorf("%s - %s: expected %#v but got %#v", testName, tt.subTest, tt.expectedResources, clusterResources)
+			t.Errorf("%s - %s: expected %#v but got %#v", t.Name(), tt.subTest, tt.expectedResources, clusterResources)
 		}
 	}
 }
 
 func TestGenerateCapabilities(t *testing.T) {
-
-	testName := "TestGenerateCapabilities"
 	tests := []struct {
 		subTest      string
 		configured   []string
@@ -2968,7 +3000,7 @@ func TestGenerateCapabilities(t *testing.T) {
 		caps := generateCapabilities(tt.configured)
 		if !reflect.DeepEqual(caps, tt.capabilities) {
 			t.Errorf("%s %s: expected `%v` but got `%v`",
-				testName, tt.subTest, tt.capabilities, caps)
+				t.Name(), tt.subTest, tt.capabilities, caps)
 		}
 	}
 }

pkg/controller/operator_config.go

@@ -86,7 +86,7 @@ func (c *Controller) importConfigurationFromCRD(fromCRD *acidv1.OperatorConfigur
 	result.StorageResizeMode = util.Coalesce(fromCRD.Kubernetes.StorageResizeMode, "pvc")
 	result.EnableInitContainers = util.CoalesceBool(fromCRD.Kubernetes.EnableInitContainers, util.True())
 	result.EnableSidecars = util.CoalesceBool(fromCRD.Kubernetes.EnableSidecars, util.True())
-	result.SharePGSocketWithSidecars = util.CoalesceBool(fromCRD.Kubernetes.SharePGSocketWithSidecars, util.False())
+	result.SharePgSocketWithSidecars = util.CoalesceBool(fromCRD.Kubernetes.SharePgSocketWithSidecars, util.False())
 	result.SecretNameTemplate = fromCRD.Kubernetes.SecretNameTemplate
 	result.OAuthTokenSecretName = fromCRD.Kubernetes.OAuthTokenSecretName
 	result.EnableCrossNamespaceSecret = fromCRD.Kubernetes.EnableCrossNamespaceSecret

pkg/util/config/config.go

@@ -213,7 +213,7 @@ type Config struct {
 	EnablePodDisruptionBudget                *bool             `name:"enable_pod_disruption_budget" default:"true"`
 	EnableInitContainers                     *bool             `name:"enable_init_containers" default:"true"`
 	EnableSidecars                           *bool             `name:"enable_sidecars" default:"true"`
-	SharePGSocketWithSidecars                *bool             `name:"share_pg_socket_with_sidecars" default:"false"`
+	SharePgSocketWithSidecars                *bool             `name:"share_pgsocket_with_sidecars" default:"false"`
 	Workers                                  uint32            `name:"workers" default:"8"`
 	APIPort                                  int               `name:"api_port" default:"8080"`
 	RingLogLines                             int               `name:"ring_log_lines" default:"100"`
@@ -232,7 +232,7 @@ type Config struct {
 	EnableTeamIdClusternamePrefix            bool              `name:"enable_team_id_clustername_prefix" default:"false"`
 	MajorVersionUpgradeMode                  string            `name:"major_version_upgrade_mode" default:"off"`
 	MajorVersionUpgradeTeamAllowList         []string          `name:"major_version_upgrade_team_allow_list" default:""`
-	MinimalMajorVersion                      string            `name:"minimal_major_version" default:"9.6"`
+	MinimalMajorVersion                      string            `name:"minimal_major_version" default:"11"`
 	TargetMajorVersion                       string            `name:"target_major_version" default:"14"`
 	PatroniAPICheckInterval                  time.Duration     `name:"patroni_api_check_interval" default:"1s"`
 	PatroniAPICheckTimeout                   time.Duration     `name:"patroni_api_check_timeout" default:"5s"`

pkg/util/constants/postgresql.go

@@ -15,4 +15,7 @@ const (
 
 	ShmVolumeName = "dshm"
 	ShmVolumePath = "/dev/shm"
+
+	RunVolumeName = "postgresql-run"
+	RunVolumePath = "/var/run/postgresql"
 )