deployment资源

目的：用rc在滚动升级之后，会造成服务访问中孤单，于是k8s引入了deploymentziyuan

创建deployment

vim k8s_deploy.yml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: 10.0.0.11:5000/nginx:1.13
        ports:
        - containerPort: 80
        resources:
          limits:
            cpu: 100m
          requests:
            cpu: 100m

创建
kubectl create -f k8s_deploy.yml

deployment升级和回滚

命令行创建deployment

kubectl run nginx --image=10.0.0.11:5000/nginx:1.13 --replicas=3 --record

命令行升级版本

kubectl set image deploy nginx nginx=10.0.0.11:5000/nginx:1.15

查看deployment所有历史版本

kubectl rollout history deployment nginx

deployment回滚到上一个版本

kubectl rollout undo deployment nginx

deployment回滚到指定版本

kubectl rollout undo deployment nginx --to-revision=2