5. Deploy Guest Book App on Kubernetes.yaml

# The Nautilus Application development team has finished development of one of the applications and it is ready for deployment. It is a guestbook application that will be used to manage entries for guests/visitors. As per discussion with the DevOps team, they have finalized the infrastructure that will be deployed on Kubernetes cluster. Below you can find more details about it.


# BACK-END TIER

# Create a deployment named redis-master for Redis master.

# a.) Replicas count should be 1.

# b.) Container name should be master-redis-devops and it should use image redis.

# c.) Request resources as CPU should be 100m and Memory should be 100Mi.

# d.) Container port should be redis default port i.e 6379.

# Create a service named redis-master for Redis master. Port and targetPort should be Redis default port i.e 6379.

# Create another deployment named redis-slave for Redis slave.

# a.) Replicas count should be 2.

# b.) Container name should be slave-redis-devops and it should use gcr.io/google_samples/gb-redisslave:v3 image.

# c.) Requests resources as CPU should be 100m and Memory should be 100Mi.

# d.) Define an environment variable named GET_HOSTS_FROM and its value should be dns.

# e.) Container port should be Redis default port i.e 6379.

# Create another service named redis-slave. It should use Redis default port i.e 6379.

# FRONT END TIER

# Create a deployment named frontend.

# a.) Replicas count should be 3.

# b.) Container name should be php-redis-devops and it should use gcr.io/google-samples/gb-frontend:v4 image.

# c.) Request resources as CPU should be 100m and Memory should be 100Mi.

# d.) Define an environment variable named as GET_HOSTS_FROM and its value should be dns.

# e.) Container port should be 80.

# Create a service named frontend. Its type should be NodePort, port should be 80 and its nodePort should be 30009.

# Finally, you can check the guestbook app by clicking on App button.


# You can use any labels as per your choice.

# Note: The kubectl utility on jump_host has been configured to work with the kubernetes cluster.

# CheckCompleteIncompleteTry Later



---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: redis-master
spec:
  replicas: 1
  selector:
    matchLabels:
      app: redis-master
  template:
    metadata:
      labels:
        app: redis-master
    spec:
      containers:
      - name: master-redis-datacenter
        image: redis
        resources:
          requests:
            memory: "100Mi"
            cpu: "100m"
        ports:
        - containerPort: 6379

---
apiVersion: v1
kind: Service
metadata:
  name: redis-master
spec:
  selector:
    app: redis-master
  ports:
  - port: 6379
    targetPort: 6379


---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: redis-slave
spec:
  replicas: 2
  selector:
    matchLabels:
      app: redis-slave
  template:
    metadata:
      labels:
        app: redis-slave
    spec:
      containers:
      - name: slave-redis-datacenter
        image: gcr.io/google_samples/gb-redisslave:v3
        resources:
          requests:
            memory: "100Mi"
            cpu: "100m"
        env:
        - name: GET_HOSTS_FROM
          value: dns
        ports:
        - containerPort: 6379

---
apiVersion: v1
kind: Service
metadata:
  name: redis-slave
spec:
  selector:
    app: redis-slave
  ports:
  - port: 6379
    targetPort: 6379


---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: frontend
spec:
  replicas: 3
  selector:
    matchLabels:
      app: frontend
  template:
    metadata:
      labels:
        app: frontend
    spec:
      containers:
      - name: php-redis-datacenter
        image: gcr.io/google-samples/gb-frontend:v4
        resources:
          requests:
            memory: "100Mi"
            cpu: "100m"
        env:
        - name: GET_HOSTS_FROM
          value: dns
        ports:
        - containerPort: 80


---

apiVersion: v1
kind: Service
metadata:
  name: frontend
spec:
  type: NodePort
  selector:
    app: frontend
  ports:
  - port: 80
    targetPort: 80
    nodePort: 30009