Added stateless app guestbook with redis (#10)

deploy_sample_apps.yml

@@ -0,0 +1,7 @@
+- name: Deploy Sample Applications
+  hosts: master
+  remote_user: "{{ ansible_remote_user }}"
+  become: yes
+  become_method: sudo
+  roles:
+    - sample_apps

roles/sample_apps/tasks/PHPGuestbook.yml

@@ -0,0 +1,9 @@
+---
+- name: Copy Guestbook YAML to host
+  template:
+    src: guestbook.yaml
+    dest: /tmp/guestbook.yaml
+
+- name: Deploying PHP Guestbook application with Redis
+  command: "kubectl --kubeconfig /etc/kubernetes/admin.conf apply -f /tmp/guestbook.yaml"
+

roles/sample_apps/tasks/main.yml

@@ -0,0 +1 @@
+- import_tasks: PHPGuestbook.yml

roles/sample_apps/templates/guestbook.yaml

@@ -0,0 +1,150 @@
+apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
+kind: Deployment
+metadata:
+  name: frontend
+spec:
+  selector:
+    matchLabels:
+      app: guestbook
+      tier: frontend
+  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
+          # Using `GET_HOSTS_FROM=dns` requires your cluster to
+          # provide a dns service. As of Kubernetes 1.3, DNS is a built-in
+          # service launched automatically. However, if the cluster you are using
+          # does not have a built-in DNS service, you can instead
+          # instead access an environment variable to find the master
+          # service's host. To do so, comment out the 'value: dns' line above, and
+          # uncomment the line below:
+          # value: env
+        ports:
+        - containerPort: 80
+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
+apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
+kind: Deployment
+metadata:
+  name: redis-master
+spec:
+  selector:
+    matchLabels:
+      app: redis
+      role: master
+      tier: backend
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: redis
+        role: master
+        tier: backend
+    spec:
+      containers:
+      - name: master
+        image: k8s.gcr.io/redis:e2e  # or just image: redis
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        ports:
+        - containerPort: 6379
+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
+apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
+kind: Deployment
+metadata:
+  name: redis-slave
+spec:
+  selector:
+    matchLabels:
+      app: redis
+      role: slave
+      tier: backend
+  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
+          # Using `GET_HOSTS_FROM=dns` requires your cluster to
+          # provide a dns service. As of Kubernetes 1.3, DNS is a built-in
+          # service launched automatically. However, if the cluster you are using
+          # does not have a built-in DNS service, you can instead
+          # instead access an environment variable to find the master
+          # service's host. To do so, comment out the 'value: dns' line above, and
+          # uncomment the line below:
+          # value: env
+        ports:
+        - containerPort: 6379
+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

site.yml

@@ -30,4 +30,5 @@
     - kubeadm
     - worker
 
-- import_playbook: contiv_network_configuration.yml
+- import_playbook: contiv_network_configuration.yml
+- import_playbook: deploy_sample_apps.yml