Use ConfigMap to store operator's config

manifests/configmap.yaml

@@ -0,0 +1,29 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: postgres-operator
+data:
+  service_account_name: operator
+  cluster_labels: application:spilo
+  cluster_name_label: version
+  pod_role_label: spilo-role
+  db_hosted_zone: db.example.com
+  dns_name_format: '%s.%s.staging.%s'
+  docker_image: registry.opensource.zalan.do/acid/spilo-9.6:1.2-p12
+  etcd_host: etcd-client.default.svc.cluster.local:2379
+  infrastructure_roles_secret_name: postgresql-infrastructure-roles
+  oauth_token_secret_name: postgresql-operator
+  pam_configuration: |
+    https://info.example.com/oauth2/tokeninfo?access_token= uid realm=/employees
+  pam_role_name: zalandos
+  pod_deletion_wait_timeout: 10m
+  pod_label_wait_timeout: 10m
+  ready_wait_interval: 3s
+  ready_wait_timeout: 30s
+  replication_username: replication
+  resource_check_interval: 3s
+  resource_check_timeout: 10m
+  resync_period: 5m
+  resync_period_pod: 5m
+  super_username: postgres
+  teams_api_url: https://teams.example.com/api/