```
apiVersion: app/v1 # kubectl explain deployment
kind: Deployment
metadata:
  name: deploy-demo
  namespace: default

spec:
  replica: 2
  selector: # 选择器匹配[与以下templatelabels匹配]
    matchLabels:
      app: myapp-demo
      release: v2
  template:
    metadata:
      labels:
        app: myapp-demo
        release: v2
    spec:
      containers:
      - name: myapp
        image: xxx/myapp
        ports:
        - name: demo-http
          containerPort:80
```
## 创建
	kubectl apply -f deploy-demo.yaml
## 查看deployment
	kubectl get deployment
## 项目详细信息
	kubectl describe deploy名称
## 回滚
	kubectl rollout undo deployment deploy-demo --to-revision=版本
## 暂停
	kubectl rollout pause deployment deploy-demo
## 暂停恢复
	kubectl rollout resume deployment deploy-demo
## 查询升级状态
    kubectl rollout status deployment deploy-demo
## 查询升级历史
    kubectl rollout history deployment deployment
## 打补丁[json格式]
	kubectl patch deployment deploy-demo -p '{"spec":{"replica":5}}' 
	或kubectl set image deployment deploy-demo image=xxx/myapp:v1