Import guestbook tutorial and manifest files (#4631)

Signed-off-by: Ahmet Alp Balkan <ahmetb@google.com>

docs/tutorials/stateless-application/guestbook/frontend-deployment.yaml

@@ -0,0 +1,29 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: frontend
+spec:
+  replicas: 3
+  template:
+    metadata:
+      labels:
+        app: guestbook
+        tier: frontend
+    spec:
+      containers:
+      - name: php-redis
+        image: gcr.io/google-samples/gb-frontend:v4
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        env:
+        - name: GET_HOSTS_FROM
+          value: dns
+          # If your cluster config does not include a dns service, then to
+          # instead access environment variables to find service host
+          # info, comment out the 'value: dns' line above, and uncomment the
+          # line below:
+          # value: env
+        ports:
+        - containerPort: 80

docs/tutorials/stateless-application/guestbook/frontend-service.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: frontend
+  labels:
+    app: guestbook
+    tier: frontend
+spec:
+  # comment or delete the following line if you want to use a LoadBalancer
+  type: NodePort 
+  # if your cluster supports it, uncomment the following to automatically create
+  # an external load-balanced IP for the frontend service.
+  # type: LoadBalancer
+  ports:
+  - port: 80
+  selector:
+    app: guestbook
+    tier: frontend

docs/tutorials/stateless-application/guestbook/redis-master-deployment.yaml

@@ -0,0 +1,22 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: redis-master
+spec:
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: redis
+        role: master
+        tier: backend
+    spec:
+      containers:
+      - name: master
+        image: gcr.io/google_containers/redis:e2e  # or just image: redis
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        ports:
+        - containerPort: 6379

docs/tutorials/stateless-application/guestbook/redis-master-service.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis-master
+  labels:
+    app: redis
+    role: master
+    tier: backend
+spec:
+  ports:
+  - port: 6379
+    targetPort: 6379
+  selector:
+    app: redis
+    role: master
+    tier: backend

docs/tutorials/stateless-application/guestbook/redis-slave-deployment.yaml

@@ -0,0 +1,30 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: redis-slave
+spec:
+  replicas: 2
+  template:
+    metadata:
+      labels:
+        app: redis
+        role: slave
+        tier: backend
+    spec:
+      containers:
+      - name: slave
+        image: gcr.io/google_samples/gb-redisslave:v1
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        env:
+        - name: GET_HOSTS_FROM
+          value: dns
+          # If your cluster config does not include a dns service, then to
+          # instead access an environment variable to find the master
+          # service's host, comment out the 'value: dns' line above, and
+          # uncomment the line below:
+          # value: env
+        ports:
+        - containerPort: 6379

docs/tutorials/stateless-application/guestbook/redis-slave-service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis-slave
+  labels:
+    app: redis
+    role: slave
+    tier: backend
+spec:
+  ports:
+  - port: 6379
+  selector:
+    app: redis
+    role: slave
+    tier: backend