Support inherited annotations for all major objects (#1236)

* add comments where inherited annotations could be added

* add inheritedAnnotations feature

* return nil if no annotations are set

* minor changes

* first downscaler then inherited annotations

* add unit test for inherited annotations

* add pvc to test + minor changes

* missing comma

* fix nil map assignment

* set annotations in the same order it is done in other places

* replace acidClientSet with acid getters in K8s client

* more fixes on clientSet vs getters

* minor changes

* remove endpoints from annotation test

* refine unit test - but deployment and sts are still empty

* fix checkinng sts and deployment

* make annotations setter one liners

* no need for len check anymore

Co-authored-by: Rafia Sabih <rafia.sabih@zalando.de>

manifests/configmap.yaml

@@ -57,6 +57,7 @@ data:
   # kubernetes_use_configmaps: "false"
   # infrastructure_roles_secret_name: "postgresql-infrastructure-roles"
   # infrastructure_roles_secrets: "secretname:monitoring-roles,userkey:user,passwordkey:password,rolekey:inrole"
+  # inherited_annotations: owned-by
   # inherited_labels: application,environment
   # kube_iam_role: ""
   # log_s3_bucket: ""

manifests/operatorconfiguration.crd.yaml

@@ -164,6 +164,10 @@ spec:
                           type: string
                         template:
                           type: boolean
+                  inherited_annotations:
+                    type: array
+                    items:
+                      type: string
                   inherited_labels:
                     type: array
                     items:

manifests/postgresql-operator-default-configuration.yaml

@@ -49,6 +49,8 @@ configuration:
     # - secretname: "other-infrastructure-role"
     #   userkey: "other-user-key"
     #   passwordkey: "other-password-key"
+    # inherited_annotations:
+    # - owned-by
     # inherited_labels:
     # - application
     # - environment