Postgres operator

examples/postgres-operator/demo-with-expose-trait.yaml

@@ -0,0 +1,17 @@
+apiVersion: core.oam.dev/v1beta1
+kind: Application
+metadata:
+  name: postgres-operator-sample-with-postgres-expose-trait
+spec:
+  components:
+    - type: "postgres-cluster"
+      name: "postgres"
+      namespace: "default"
+      properties:
+        replicas: 3
+      traits:
+        - type: postgres-expose
+          properties:
+            type: NodePort
+            port: 5432
+            targetPort: 5432

experimental/addons/postgres-operator/README.md

@@ -51,6 +51,28 @@ spec:
         replicas: 3
 ```
 
+If you want to create a service to access Postgres, So apply below YAML:
+
+```yaml
+apiVersion: core.oam.dev/v1beta1
+kind: Application
+metadata:
+  name: postgres-operator-sample
+spec:
+  components:
+    - type: "postgres-cluster"
+      name: "postgres"
+      namespace: "default"
+      properties:
+        replicas: 3 # By default it's set to 2.
+      traits:
+        - type: postgres-expose
+          properties:
+            type: NodePort    # Change this field if you want diffrent type of service.
+            port: 5432
+            targetPort: 5432
+```
+
 ```shell
 $ kubectl get po  -n prod  -o wide
 NAME         READY   STATUS    RESTARTS   AGE     IP            NODE       NOMINATED NODE   READINESS GATES
@@ -65,16 +87,16 @@ With a port-forward on one of the database pods (e.g. the master) you can connec
 
 ```shell
 # get name of master pod of acid-minimal-cluster
-export PGMASTER=$(kubectl get pods -o jsonpath={.items..metadata.name} -l application=spilo,cluster-name=postgres,spilo-role=master -n prod)
+$ export PGMASTER=$(kubectl get pods -n prod -o jsonpath={.items..metadata.name} -l application=spilo,cluster-name=postgres,spilo-role=master -n prod)
 
 # set up port forward
-kubectl port-forward $PGMASTER 6432:5432 -n default
+kubectl port-forward $PGMASTER -n prod 5432:5432 -n prod
 ```
 
 Open another CLI and connect to the database using e.g. the psql client. When connecting with a manifest role like foo_user user, read its password from the K8s secret which was generated when creating acid-minimal-cluster. As non-encrypted connections are rejected by default set SSL mode to require:
 
 ```shell
-export PGPASSWORD=$(kubectl get secret postgres.postgres.credentials.postgresql.acid.zalan.do -o 'jsonpath={.data.password}' | base64 -d)
-export PGSSLMODE=require
-psql -U postgres -h localhost -p 6432
+$ export PGPASSWORD=$(kubectl get secret -n prod postgres.postgres.credentials.postgresql.acid.zalan.do -o 'jsonpath={.data.password}' | base64 -d)
+$ export PGSSLMODE=require
+$ psql -U postgres -h localhost -p 5432
 ```