How to Copy a Docker Image tas a .tar and re deploy it as a Docker Image

The Story is behind a real situation. As usual I start to rebuild my docker image by using a Docker nginx:1.22.1-alpine. Then I realized that system cannot download the Docker image from the location due to a new policy implementation, but my Problem is I was already down the system for the new release.

What I did, I loged into a different server which is not effected by the policy and then ran the below command

1. Docker pull nginx:1.22.1-alpine
2. docker save -o /home/projects/nginx_image.tar nginx:1.22.1-alpine

Next Copy that file and place into your location

1. chmod 644 /home/projects/nginx_image.tar
2. Copy the file to the location
3. Then tun
   • docker load -i /home/project/nginx_image.tar