k8s常用命令

pod

kubectl get pod -n my-namespace
kubectl get pod -n my-namespace gateway-7d6485b8f-sn9qn
kubectl get pod -n my-namespace gateway-7d6485b8f-sn9qn -o wide

缩减实例数

kubectl scale --replicas=2 deploy -n my-namespace gateway-7d6485b8f-sn9qn

查看端口映射

kubectl describe svc -n my-namespace yth-gateway

查看deploy

kubectl get deploy -n my-namespace

进入pod shell

kubectl exec -it -n my-namespace gateway-7d6485b8f-sn9qn sh

在标准输出显示pod最近50行日志，并实时刷新

kubectl logs -n my-namespace gateway-7d6485b8f-sn9qn --tail 50 -f

导出保存pod最近2小时的日志

kubectl logs -n my-namespace gateway-7d6485b8f-sn9qn --since 2h > log.log

获取pod状态

kubectl get pod

pod详细情况

kubectl describe pod elkhost-944bcbcd4-8n9nj

pod日志

kubectl logs elkhost-944bcbcd4-8n9nj

ReplicationController

kubectl get rc -n my-namespace

RS

查找pod

kubectl get pods -l environment=production,tier=frontend