13 - ReplicationController in Kubernetes

Task

The Nautilus DevOps team wants to create a ReplicationController to deploy several pods. They are going to deploy applications on these pods, these applications need highly available infrastructure. Below you can find exact details, create the ReplicationController accordingly.

Create a ReplicationController using nginx image, preferably with latest tag, and name it as nginx-replicationcontroller.

Labels app should be nginx_app, and labels type should be front-end. The container should be named as nginx-container and also make sure replica counts are 3.

All pods should be running state after deployment.

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

Solution

kubectl apply -f - <<EOF
---
apiVersion: v1
kind: ReplicationController
metadata:
  name: nginx-replicationcontroller
spec:
  replicas: 3
  selector:
    app: nginx_app
    type: front-end
  template:
    metadata:
      labels:
        app: nginx_app
        type: front-end
    spec:
      containers:
      - name: nginx-container
        image: nginx:latest
EOF

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