Pod 状态一直 ContainerCreating

查看 Pod 事件

$ kubectl describe pod/apigateway-6dc48bf8b6-l8xrw -n cn-staging

no space left on device

...
Events:
  Type     Reason                  Age                  From                   Message
  ----     ------                  ----                 ----                   -------
  Warning  FailedCreatePodSandBox  2m (x4307 over 16h)  kubelet, 10.179.80.31  (combined from similar events): Failed create pod sandbox: rpc error: code = Unknown desc = failed to create a sandbox for pod "apigateway-6dc48bf8b6-l8xrw": Error response from daemon: mkdir /var/lib/docker/aufs/mnt/1f09d6c1c9f24e8daaea5bf33a4230de7dbc758e3b22785e8ee21e3e3d921214-init: no space left on device

node上磁盘满了，无法创建和删除 pod，解决方法参考Kubernetes最佳实践：处理容器数据磁盘被写满

Error syncing pod

• 可能是节点的内存碎片化严重，导致无法创建pod

signal: killed

memory limit 单位写错，误将memory的limit单位像request一样设置为小 m，这个单位在memory不适用，应该用Mi或M，会被k8s识别成byte，所以pause容器一起来就会被 cgroup-oom kill 掉，导致pod状态一直处于ContainerCreating

controller-manager 异常

查看 master 上 kube-controller-manager 状态，异常的话尝试重启