In order to rename the Docker image, you can give it a new tag, and then remove the old tag using the ‘rmi’ command, see the commands in details below:-
But remember the second step is scary, as ‘rmi’ means “remove image”. However, docker won’t actually remove the image if it has any other tags. That is, if you were to immediately follow this with docker rmi <new_name>, then it would actually remove the image assuming there are no other tags assigned to the image.
If you want to learn more about such things in Docker then you can read the following Docker tutorial which covers many such things and guess what this tutorial is free of cost. You can also watch the following Docker video tutorial to learn the basics of it.
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