docker管理进程

https://komodor.com/learn/exit-codes-in-containers-and-kubernetes-the-complete-guide/

https://kubernetes.io/docs/tasks/debug/debug-application/get-shell-running-container/

https://kubernetes.io/docs/tasks/debug/debug-application/debug-running-pod/

https://www.ipyker.com/post/k8s-process-trap/