Major version upgrade config (#1386)

* reflect new major version upgrade options everywhere

* emit events during major version upgrade

manifests/configmap.yaml

@@ -81,6 +81,7 @@ data:
   # min_instances: "-1"
   # min_cpu_limit: 250m
   # min_memory_limit: 250Mi
+  # minimal_major_version: "9.5"
   # node_readiness_label: ""
   # oauth_token_secret_name: postgresql-operator
   # pam_configuration: |
@@ -119,6 +120,7 @@ data:
   spilo_privileged: "false"
   storage_resize_mode: "pvc"
   super_username: postgres
+  # target_major_version: "13"
   # team_admin_role: "admin"
   # team_api_role_configuration: "log_statement:all"
   # teams_api_url: http://fake-teams-api.default.svc.cluster.local

manifests/operatorconfiguration.crd.yaml

@@ -123,6 +123,18 @@ spec:
                   super_username:
                      type: string
                      default: postgres
+              major_version_upgrade:
+                type: object
+                properties:
+                  major_version_upgrade_mode:
+                    type: string
+                    default: "off"
+                  minimal_major_version:
+                    type: string
+                    default: "9.5"
+                  target_major_version:
+                    type: string
+                    default: "13"
               kubernetes:
                 type: object
                 properties:

manifests/postgresql-operator-default-configuration.yaml

@@ -26,6 +26,10 @@ configuration:
   users:
     replication_username: standby
     super_username: postgres
+  major_version_upgrade:
+    major_version_upgrade_mode: "off"
+    minimal_major_version: "9.5"
+    target_major_version: "13"
   kubernetes:
     # additional_pod_capabilities:
     # - "SYS_NICE"