各个资源的下属资源描述，在写 deployment时可参考

    1. kubectl explain pod.spec.containers.lifecycle.postStart.exec

    获取 Depoloyment 的信息

    1. kubectl get deploy | grep inspection

    动态获取 pod 状态信息

    • -n: 默认为 kubeconfig 配置的 namespace
    • -w: 动态监听 apiServer，持续输出 pod 信息 ```powershell kubectl get pod podName -w

    NAME READY STATUS RESTARTS AGE pod-initcontainer 0/1 Init:0/2 0 15s pod-initcontainer 0/1 Init:1/2 0 52s pod-initcontainer 0/1 Init:1/2 0 53s pod-initcontainer 0/1 PodInitializing 0 89s pod-initcontainer 1/1 Running 0 90s

    2. - READY：主容器（除根容器外）的状态：RUNNING状态的主容器数/总数
    3. - STATUS：Pod 各个阶段的状态
    4.    - InitContainer 阶段：，标识 InitContainer 的状态，参数定义类似 READY
    5.    - PodInitializing：InitContainer 阶段全部成功，下载主容器镜像中
    6.    - Running：运行中
    8. 进入指定的pod的指定容器内部
    9. ```shell
    10. # 获取 pod 
    11. kubectl get pod | grep inspection | awk '{print $1}'
    13. # 进入容器
    14. kubectl exec ds-phoenix-inspection-waterfall-799c88497d-c4rvd -n radar-beta -it -c ds-phoenix-inspection-waterfall /bin/sh

    获取滚动更新历史

    1. kubectl rollout history deployment ds-phoenix-inspection-webapp

    回退指定的版本

    1. kubectl rollout undo deployment ds-phoenix-inspection-webapp --to-revision=7

    观察滚动更新过程

    1. # 监测 deploy 节点的变化情况
    2. kubectl get deploy -w | grep inspection
    4. # 监测各个版本 rs 的变化情况
    5. kubectl get rs -w | grep inspection
    7. 1. 初始（replica 2；maxSurge：1；maxUnavailable：1）：
    8. [hanie@admincenter3 ~]$ kubectl get deploy -w | grep inspection
    9. ds-phoenix-inspection-webapp   2     2     2     2     4d19h
    11. [hanie@admincenter3 ~]$ kubectl get rs -w | grep inspection
    12. ds-phoenix-inspection-webapp-69549f96ff                    2         2         2       32m
    13. ds-phoenix-inspection-webapp-79c457dc7b                    0         0         0       4d16h
    14. ds-phoenix-inspection-webapp-84c65c9f95                    0         0         0       4d
    15. ds-phoenix-inspection-webapp-f94d74d5                      0         0         0       4d16h
    17. 2. 启动ci，进行更新，可以看到两个版本的 rs 在交替更迭 pod
    18. deploy
    19. NAME                                            DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
    20. ds-phoenix-inspection-webapp   2     2     2     2     4d19h
    21. ds-phoenix-inspection-webapp   2     2     2     2     4d19h
    22. ds-phoenix-inspection-webapp   2     3     1     2     4d19h
    23. ds-phoenix-inspection-webapp   2     2     1     1     4d19h
    24. ds-phoenix-inspection-webapp   2     3     2     1     4d19h
    25. ds-phoenix-inspection-webapp   2     3     2     2     4d19h
    26. ds-phoenix-inspection-webapp   2     3     2     2     4d19h
    27. ds-phoenix-inspection-webapp   2     2     2     1     4d19h
    28. ds-phoenix-inspection-webapp   2     2     2     2     4d19h
    30. rs
    31. NAME                                                       DESIRED   CURRENT   READY   AGE
    32. ds-phoenix-inspection-webapp-6966767dd9   1     0     0     0s
    33. ds-phoenix-inspection-webapp-69549f96ff   1     2     2     36m
    34. ds-phoenix-inspection-webapp-6966767dd9   1     0     0     0s
    35. ds-phoenix-inspection-webapp-69549f96ff   1     2     2     36m
    36. ds-phoenix-inspection-webapp-6966767dd9   1     1     0     0s
    37. ds-phoenix-inspection-webapp-69549f96ff   1     1     1     36m
    38. ds-phoenix-inspection-webapp-6966767dd9   2     1     0     0s
    39. ds-phoenix-inspection-webapp-6966767dd9   2     1     0     0s
    40. ds-phoenix-inspection-webapp-6966767dd9   2     2     0     0s
    41. ds-phoenix-inspection-webapp-6966767dd9   2     2     1     46s
    42. ds-phoenix-inspection-webapp-69549f96ff   0     1     1     37m
    43. ds-phoenix-inspection-webapp-69549f96ff   0     1     1     37m
    44. ds-phoenix-inspection-webapp-69549f96ff   0     0     0     37m
    45. ds-phoenix-inspection-webapp-6966767dd9   2     2     2     118s
    46. ds-phoenix-inspection-webapp-79c457dc7b   0     0     0     4d16h