Add MySQL client service for reads.

docs/tutorials/replicated-stateful-application/mysql-headless-service.yaml

@@ -1,14 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: mysql
-  labels:
-    app: mysql
-spec:
-  ports:
-  - name: mysql
-    port: 3306
-  clusterIP: None
-  selector:
-    app: mysql
-

docs/tutorials/replicated-stateful-application/mysql-services.yaml

@@ -0,0 +1,30 @@
+# Headless service for stable DNS entries of Stateful Set members.
+apiVersion: v1
+kind: Service
+metadata:
+  name: mysql
+  labels:
+    app: mysql
+spec:
+  ports:
+  - name: mysql
+    port: 3306
+  clusterIP: None
+  selector:
+    app: mysql
+---
+# Client service for connecting to any MySQL instance for reads.
+# For writes, you must instead connect to the master: mysql-0.mysql.
+apiVersion: v1
+kind: Service
+metadata:
+  name: mysql-read
+  labels:
+    app: mysql
+spec:
+  ports:
+  - name: mysql
+    port: 3306
+  selector:
+    app: mysql
+