How can I using kubectl cmd to get specific pod's commit sha1 like:
kubectl get git_commit_sha1 [pod_name]
There is no way to achieve what you want at the moment using kubectl. They only possible way would be if your docker image have
git command built in. In that case you could use
kubectl exec to get the information you want.
$ kubectl exec -ti podname -- git show
Alternatively, if you really think your idea makes sense and may be useful to more people, you can open a feature request on kubernetes github issues page.