git tag
1018 git clone https://github.com/kubernetes/ingress-nginx.git
1023 git tag --list
1025 git checkout -b controller-v0.44.0
root@ubuntu:~/nginx_ingress/ingress-nginx/images/nginx# git checkout nginx-0.30.0 error: Your local changes to the following files would be overwritten by checkout: Makefile build/run-in-docker.sh images/httpbin/rootfs/Dockerfile images/nginx/rootfs/Dockerfile rootfs/Dockerfile Please commit your changes or stash them before you switch branches. Aborting root@ubuntu:~/nginx_ingress/ingress-nginx/images/nginx#