Deplyments란?

pods와 replicaset의 선언적 업데이트를 제공한다.

Use Case

• replicaset의 rollout
• 새로운 pods 선언
• 이전 deployment로 rollback
• deployment scale up
• pause deployment
• use the status of the deployment
• clean up older ReplicaSets

Creating a Deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  labels:
    app: nginx
spec:
  replicas: 3
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 80

간단한 명령어

kubectl get deployments // deployments 조회

kubectl describe deployments // deployments 상세 조회

kubectl rollout history deployment.v1.apps/nginx-deployment // rollout history 조회

kubectl rollout undo deployment.v1.apps/nginx-deployment –to-revision=2 // 이전 버전으로 돌리기

kubectl scale deployment.v1.apps/nginx-deployment –replicas=10 // scale up

kubectl rollout pause deployment.v1.apps/nginx-deployment // pause

kubectl rollout resume deployment.v1.apps/nginx-deployment // resume

출처

https://kubernetes.io/docs/concepts/workloads/controllers/deployment/