华为云

现在这一套已经被淘汰了，prometheus+grafan主流

Deployment升级与回滚 - 1
# 创建Deployment：
$ kubectl run {deployment} –image={image} –replicas={rep.}
# 或使用yaml文件形式，重点配置replicas和image字段。

升级Deployment：
$ kubectl set image deployment/nginx-deployment nginx=nginx:1.9.1
$ kubectl set resources deployment/nginx-deployment -c=nginx —limits=cpu=200m,memory=512Mi

升级策略：
minReadySeconds: 5
strategy:
type: RollingUpdate
rollingUpdate:
maxSurge: 1 #默认25%
maxUnavailable: 1 #默认25%

Deployment升级与回滚 - 2
# 暂停Deployment：
$ kubectl rollout pause deployment/nginx-deployment

恢复Deployment：
$ kubectl rollout resume deployment/nginx-deployment

查询升级状态：
$ kubectl rollout status deployment/nginx-deployment

查询升级历史：
$ kubectl rollout history deploy/nginx-deployment
$ kubectl rollout history deploy/nginx-deployment —revision=2

回滚：
$ kubectl rollout undo deployment/nginx-deployment —to-revision=2

应用弹性伸缩
$ kubectl scale deployment nginx-deployment —replicas=10

对接了heapster，和HPA联动后：
$ kubectl autoscale deployment nginx-deployment —min=10 —max=15 —cpu-percent=80