addition of mysql-wordpress-pd example

examples/mysql-wordpress-pd/wordpress.yaml

@@ -0,0 +1,31 @@
+apiVersion: v1beta1
+id: wordpress
+desiredState:
+  manifest:
+    version: v1beta1
+    id: wordpress
+    containers:
+      - name: wordpress
+        image: wordpress
+        ports:
+          - containerPort: 80
+        volumeMounts:
+            # name must match the volume name below
+          - name: wordpress-persistent-storage
+            # mount path within the container
+            mountPath: /var/www/html
+        env:
+          - name: WORDPRESS_DB_PASSWORD
+            # change this - must match mysql.yaml password
+            value: yourpassword
+    volumes:
+      - name: wordpress-persistent-storage
+        source:
+          # emptyDir: {}
+          persistentDisk:
+            # This GCE PD must already exist and be formatted ext4
+            pdName: wordpress-disk
+            fsType: ext4
+labels:
+  name: wpfrontend
+kind: Pod