chore(postgresql-cluster): update service type to ClusterIP (#35)

Author: EamonZhang

addons/postgresql-cluster/15/chart/postgresql-cluster/templates/svc.yaml

@@ -11,7 +11,7 @@ metadata:
     heritage: {{ .Release.Service }}
     cluster-name: {{ template "patroni.fullname" . }}
 spec:
-  type: {{ .Values.service.type }}
+  type: ClusterIP
   ports:
     - port: 5432
       targetPort: 5432

addons/postgresql-cluster/15/chart/postgresql-cluster/values.yaml

@@ -213,7 +213,7 @@ metrics:
   ## @param metrics.customMetrics Define additional custom metrics
   ## ref: https://github.com/wrouesnel/postgres_exporter#adding-new-metrics-via-a-config-file
   ## customMetrics:
-  ##   pg_database:
+  ##   pg_database:....
   ##     query: "SELECT d.datname AS name, CASE WHEN pg_catalog.has_database_privilege(d.datname, 'CONNECT') THEN pg_catalog.pg_database_size(d.datname) ELSE 0 END AS size_bytes FROM pg_catalog.pg_database d where datname not in ('template0', 'template1', 'postgres')"
   ##     metrics:
   ##       - name: