kubernetes經常使用命令

kubectl

source <(kubectl completion bash) #命令補全

啓動-狀態

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

經常使用命令

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 #查看日誌
11. kubectl scale rc redis-slave --replicas=3 #修改RC的副本數量，來實現Pod的動態縮放
14. etcdctl cluster-health #檢查網絡集羣健康狀態
15. etcdctl --endpoints=https://192.168.71.221:2379 cluster-health #帶有安全認證檢查網絡集羣健康狀態
16. etcdctl member list
17. etcdctl set /k8s/network/config '{ "Network": "10.1.0.0/16" }'
18. etcdctl get /k8s/network/config

基礎進階

1. kubectl get services kubernetes-dashboard -n kube-system #查看全部service
2. kubectl get deployment kubernetes-dashboard -n kube-system #查看全部發布
3. kubectl get pods --all-namespaces #查看全部pod
4. kubectl get pods -o wide --all-namespaces #查看全部pod的IP及節點
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" #指定類型查看
8. kubectl describe pod nginx-772ai #查看pod詳細信息
9. kubectl scale rc nginx --replicas=5 # 動態伸縮
10. kubectl scale deployment redis-slave --replicas=5 #動態伸縮
11. kubectl scale --replicas=2 -f redis-slave-deployment.yaml #動態伸縮
12. kubectl exec -it redis-master-1033017107-q47hh /bin/bash #進入容器
13. kubectl label nodes node1 zone=north #增長節點lable值 spec.nodeSelector: zone: north #指定pod在哪一個節點
14. kubectl get nodes -lzone #獲取zone的節點
15. kubectl label pod redis-master-1033017107-q47hh role=master #增長lable值 [key]=[value]
16. kubectl label pod redis-master-1033017107-q47hh role- #刪除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 #配置文件滾動升級
19. kubectl rolling-update redis-master --image=redis-master:2.0 #命令升級
20. kubectl rolling-update redis-master --image=redis-master:1.0 --rollback #pod版本回滾