部署（Deployment）控制器为Pod和ReplicaSet提供声明性更新。

apiVersion: apps/v1beta1 # for versions before 1.6.0 use extensions/v1beta1kind: Deploymentmetadata:  name: nginx-deploymentspec:  replicas: 3  template:    metadata:      labels:        app: nginx    spec:      containers:      - name: nginx        image: nginx:1.7.9        ports:        - containerPort: 80

 

kubectl get deployments

 

kubectl describe deployment

 

kubectl describe deployment xxx-deployment

 

kubectl delete deployment xxx-deployment

　　

kubectl get pods -l app=nginx # -l即label