kubernetes常用命令

kubectl

source <(kubectl completion bash) #命令补全

启动-状态

1. master
2. systemctl daemon-reload
3. systemctl start kube-apiserver
4. systemctl start kube-controller-manager
5. systemctl start kube-scheduler
7. etcd
8. systemctl start etcd.service
10. client
11. systemctl start kube-proxy -l
12. systemctl start docker -l
13. systemctl start kubelet -l
15. status
16. systemctl status etcd.service
17. systemctl status kube-apiserver -l
18. systemctl status kube-controller-manager -l
19. systemctl status kube-scheduler
21. systemctl status kube-proxy -l
22. systemctl status docker -l
23. systemctl status kubelet -l

常用命令

1. kubectl get pods
2. kubectl get rc
3. kubectl get service
4. kubectl get componentstatuses
5. kubectl get endpoints
6. kubectl cluster-info
7. kubectl create -f redis-master-controller.yaml
8. kubectl delete -f redis-master-controller.yaml
9. kubectl delete pod nginx-772ai
10. kubectl logs -f pods/heapster-xxxxx -n kube-system #查看日志
11. kubectl scale rc redis-slave --replicas=3 #修改RC的副本数量，来实现Pod的动态缩放
14. etcdctl cluster-health #检查网络集群健康状态
15. etcdctl --endpoints=https://192.168.71.221:2379 cluster-health #带有安全认证检查网络集群健康状态
16. etcdctl member list
17. etcdctl set /k8s/network/config ‘{ "Network": "10.1.0.0/16" }‘
18. etcdctl get /k8s/network/config

基础进阶

1. kubectl get services kubernetes-dashboard -n kube-system #查看所有service
2. kubectl get deployment kubernetes-dashboard -n kube-system #查看所有发布
3. kubectl get pods --all-namespaces #查看所有pod
4. kubectl get pods -o wide --all-namespaces #查看所有pod的IP及节点
5. kubectl get pods -n kube-system | grep dashboard
6. kubectl describe service/kubernetes-dashboard --namespace="kube-system"
7. kubectl describe pods/kubernetes-dashboard-349859023-g6q8c --namespace="kube-system" #指定类型查看
8. kubectl describe pod nginx-772ai #查看pod详细信息
9. kubectl scale rc nginx --replicas=5 # 动态伸缩
10. kubectl scale deployment redis-slave --replicas=5 #动态伸缩
11. kubectl scale --replicas=2 -f redis-slave-deployment.yaml #动态伸缩
12. kubectl exec -it redis-master-1033017107-q47hh /bin/bash #进入容器
13. kubectl label nodes node1 zone=north #增加节点lable值 spec.nodeSelector: zone: north #指定pod在哪个节点
14. kubectl get nodes -lzone #获取zone的节点
15. kubectl label pod redis-master-1033017107-q47hh role=master #增加lable值 [key]=[value]
16. kubectl label pod redis-master-1033017107-q47hh role- #删除lable值
17. kubectl label pod redis-master-1033017107-q47hh role=backend --overwrite #修改lable值
18. kubectl rolling-update redis-master -f redis-master-controller-v2.yaml #配置文件滚动升级
19. kubectl rolling-update redis-master --image=redis-master:2.0 #命令升级
20. kubectl rolling-update redis-master --image=redis-master:1.0 --rollback #pod版本回滚