extensions/v1betal版本在1.9被廢棄
apiVersion: apps/v1
kind: ReplicaSet
metadata:
name: frontend
spec:
replicas: 3
selector:
matchLabels:
tier: frontend
template:
metadata:
labels:
tier: frontend
spec:
containers:

• name: myapp
  image: 192.168.68.253:8253/library/nginx:latest
  env:
  • name: GET_HOSTS_FROM
    value: dns
    ports:
  • containerPort: 80

kubectl get pod --show-labels
kubectl label pod podname tier=frontend1 --overwrite=true

報錯缺乏選擇器
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:

• name: nginx
  image: 192.168.68.253:8253/library/nginx:latest
  ports:
  • containerPort: 80

擴容
kubectl scale deployment nginx-deployment --replicas=10
更新鏡像
kubectl set image deployment/nginx-deployment nginx=nginx:latest
回滾
kubectl rollout undo deployment/nginx-deployment (--to-version=1)
kubectl rollout status deployment/nginx-deployment 回滾狀態(tài)
kubectl rollout history deployment/nginx-deployment 回滾歷史
kubectl rollout pause deployment/nginx-deployment 暫停

DeamonSet:每個節(jié)點運行一個副本

apiVersion: apps/v1
kind: DaemonSet
metadata:
name: deamonset-example
labels:
app: daemonset
spec:
selector:
matchlabels:
name: deamonset-example
template:
metadata:
labels:
name: deamonset-example
spec:
containers:
name: daemonset-example
image: 192.168.68.253:8253/library/nginx:latest