get /describe

  1. ## get 
  3. kubectl get nodes
  4. kubectl get pods
  5. kubectl get pod,svc  
  6. kubectl get deployments
  7. kubectl describe pods
  8. kubectl describe deployment

create/ logs/exec

  1. kubectl create deployment nginx --image=nginx
  4. kubectl logs $POD_NAME
  5. kubectl exec $POD_NAME env
  6. kubectl exec -ti $POD_NAME bash
  7. """
  8. 格式如下：
  9. kubectl exec -it podName  -c  containerName -n namespace -- shell comand
  12. [root@k8smaster ~]# kubectl exec  le-f4c9644b-b192-4e85-9c34-f4a90e29638a-hbh6x -n test env
  13. PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
  14. HOSTNAME=le-f4c9644b-b192-4e85-9c34-f4a90e29638a-hbh6x
  15. LE_F4C9644B_B192_4E85_9C34_F4A90E29638A_PORT_80_TCP_ADDR=10.254.145.128
  16. KUBERNETES_SERVICE_PORT_HTTPS=443
  17. KUBERNETES_PORT=tcp://10.254.0.1:443
  18. LE_F4C9644B_B192_4E85_9C34_F4A90E29638A_PORT_80_TCP=tcp://10.254.145.128:80
  19. LE_F4C9644B_B192_4E85_9C34_F4A90E29638A_PORT_80_TCP_PROTO=tcp
  20. LE_F4C9644B_B192_4E85_9C34_F4A90E29638A_PORT_80_TCP_PORT=80
  21. KUBERNETES_SERVICE_HOST=10.254.0.1
  22. KUBERNETES_SERVICE_PORT=443
  23. KUBERNETES_PORT_443_TCP_ADDR=10.254.0.1
  24. LE_F4C9644B_B192_4E85_9C34_F4A90E29638A_PORT=tcp://10.254.145.128:80
  25. KUBERNETES_PORT_443_TCP_PROTO=tcp
  26. KUBERNETES_PORT_443_TCP_PORT=443
  27. LE_F4C9644B_B192_4E85_9C34_F4A90E29638A_SERVICE_HOST=10.254.145.128
  28. KUBERNETES_PORT_443_TCP=tcp://10.254.0.1:443
  29. LE_F4C9644B_B192_4E85_9C34_F4A90E29638A_SERVICE_PORT=80
  30. LANG=zh_CN.UTF-8
  31. HOME=/root
  32. [root@k8smaster ~]# kubectl exec  -it le-f4c9644b-b192-4e85-9c34-f4a90e29638a-hbh6x -n test bash
  33. le-f4c9644b-b192-4e85-9c34-f4a90e29638a-hbh6x:~ # ls
  34. bin  lico  source
  35. """

label

  1. kubectl get services
  2. kubectl describe nginx
  3. kubectl describe pods $POD_NAME
  5. kubectl get pods -l run=kubernetes-bootcamp
  6. kubectl get pods -l run=kubernetes-bootcamp
  8. kubectl label pod $POD_NAME app=v1
  9. kubectl get pods -l app=v1

expose

  1. kubectl expose deployment nginx --port=80 --type=NodePort

scale

  1. #### scaling you app
  2. kubectl scale deployments/nginx --replicas=3    ## scale up to 3. all is 3
  3. kubectl scale deployments/nginx --replicas=1    ## scale down to 1. all is 1
  4. kubectl get pods

update

  1. #### update
  3. kubectl set image deployments/kubernetes-bootcamp kubernetes-bootcamp=jocatalin/kubernetes-bootcamp:v2
  4. kubectl rollout status deployments/kubernetes-bootcamp
  5. kubectl set image deployments/kubernetes-bootcamp kubernetes-bootcamp=gcr.io/google-samples/kubernetes-bootcamp:v10
  6. kubectl rollout undo deployments/kubernetes-bootcamp
  7. kubectl rollout history   # 
  8. kubectl rollout undo   #   回滚到 上一个/某一个（指定）
  9. kubectl rollout status   #
  10. kubectl rollout status   #

edit

  1. #### edit
  2. kubectl edit svc/web
  3. kubectl patch

delete

  1. #### delete 
  2. kubectl delete service nginx
  3. kubectl delete deployment nginx