Kubernetes Deployment

Structure of deployment-definition.yml:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo-deployment
  labels:
    app: demo-app
    type: front-end
spec:
  template:
    metadata:
      name: demo-app
      labels:
        app: demo-app
        type: front-end
    spec:
      containers:
        - name: nginx-container
          image: nginx:1.16.1
  replicas: 3
  selector:
    matchLabels:
      type: front-end

Basic deployment commands:

• kubectl create -f deployment-definition.yml —record
• kubectl get deployment
• kubectl describe deployment demo-deployment
• kubectl rollout status deployment/demo-deployment
• kubectl rollout history deployment/demo-deployment
• kubectl apply -f deployment-definition.yml
• kubectl set image deployment/demo-deployment nginx-container=nginx:1.17.9
• kubectl rollout undo deployment/demo-deployment