我一直在玩minikube，经过一系列操作后，kubectl get pod -w的输出如下:
nginx 1/1 Running 2 10m
nginx 1/1 Running 3 10m
nginx 0/1 Completed 2 10m
nginx 0/1 CrashLoopBackOff 2 11m
nginx 1/1 Running 3 11m
nginx 1/1 Running 3 12m
我不明白第3行和第4行显示的计数。重新启动计数到底传达了什么？
最佳答案
关于CrashLoopBackOff状态:CrashloopBackOff意味着您有一个 pods 开始，崩溃，再次开始，然后再次崩溃。
由kubelet重新启动的失败容器将以指数退避延迟(10s，20s，40s…)重新启动，上限为五分钟，并在成功执行十分钟后重置。CrashLoopBackOff事件的发生有不同的原因，大多数情况与以下原因有关:
-容器中的应用程序不断崩溃
- pods 或容器的某些参数配置不正确
-部署期间发生错误
每当您遇到CrashLoopBackOff时，请执行kubectl describe进行调查:kubectl describe pod POD_NAME --namespace NAMESPACE_NAME
user@minikube:~$ kubectl describe pod ubuntu-5d4bb4fd84-8gl67 --namespace default
Name: ubuntu-5d4bb4fd84-8gl67
Namespace: default
Priority: 0
Node: minikube/192.168.39.216
Start Time: Thu, 09 Jan 2020 09:51:03 +0000
Labels: app=ubuntu
pod-template-hash=5d4bb4fd84
Status: Running
Controlled By: ReplicaSet/ubuntu-5d4bb4fd84
Containers:
ubuntu:
Container ID: docker://c4c0295e1e050b5e395fc7b368a8170f863159879821dd2562bc2938d17fc6fc
Image: ubuntu
Image ID: docker-pullable://ubuntu@sha256:250cc6f3f3ffc5cdaa9d8f4946ac79821aafb4d3afc93928f0de9336eba21aa4
State: Terminated
Reason: Completed
Exit Code: 0
Started: Thu, 09 Jan 2020 09:54:37 +0000
Finished: Thu, 09 Jan 2020 09:54:37 +0000
Last State: Terminated
Reason: Completed
Exit Code: 0
Started: Thu, 09 Jan 2020 09:53:05 +0000
Finished: Thu, 09 Jan 2020 09:53:05 +0000
Ready: False
Restart Count: 5
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-xxxst (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
default-token-xxxst:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-xxxst
Optional: false
QoS Class: BestEffort
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 7m16s default-scheduler Successfully assigned default/ubuntu-5d4bb4fd84-8gl67 to minikube
Normal Created 5m59s (x4 over 6m52s) kubelet, minikube Created container ubuntu
Normal Started 5m58s (x4 over 6m52s) kubelet, minikube Started container ubuntu
Normal Pulling 5m17s (x5 over 7m5s) kubelet, minikube Pulling image "ubuntu"
Normal Pulled 5m15s (x5 over 6m52s) kubelet, minikube Successfully pulled image "ubuntu"
Warning BackOff 2m2s (x24 over 6m43s) kubelet, minikube Back-off restarting failed container
Events部分将为您提供详细的说明。关于kubernetes - 运行kubectl get pod -w时，kubernetes pod重启计数显示不一致的值，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/59658516/