kubectl命令大全

deployment

直接修改deployment镜像

kubectl set image deployment/nginx-deployment nginx=nginx:1.91

回滚deployment变更

kubectl rollout undo deployment/nginx-deployment

查询deployment信息

kubectl describe deployment nginx-deployment

deployment变更历史查询

kubectl rollout history deployment/nginx-deployment

查看deployment变更历史中某个版本(版本号是变更历史查询到的版本号)的细节

kubectl rollout history deployment/nginx-deployment --revision=2

回滚deployment到某个版本号,前面两个命令可以查看历史版本信息

kubectl rollout undo deployment/nginx-deployment --to-revision=6

不要触发deployment的自动滚动更新功能:

kubectl rollout pause deployment/nginx-deployment

恢复deployment的自动滚动更新功能

kubectl rollout resume deploy/nginx-deployment

命令式-更新deployment

kubectl replace -f nginx.yaml

声明式API-创建或者更新deployment

kubectl apply -f nginx.yaml

副本

查询副本
kubectl get rs

POD

通过标签查询pods

kubectl get pods -w -l app=nginx

服务

Headless Service的DNS域名记录格式

<pod-name>.<svc-name>.<namespace>.svc.cluster.local

默认的命名空间为default

进入容器

进入容器查询容器主机名字

kubectl exec web-0 -- sh -c 'hostname'

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