Is it possible for image to have multiple tags?
You can build an image with several tags and then push the image with the --all-tags option.
Example:
docker build -t reg/user/image:foo -t reg/user/image:latest .docker push reg/user/image --all-tagsOlder Docker clients that do not support --all-tags will push all tags by default (simply omit the option), newer clients will only push latest by default. As an alternative, you may want to push each tag separately.
You need to do one push per each version like:
docker tag test:latest <repo>/<user>/test:latestdocker push <repo>/<user>/test:latestdocker tag test:0.2 <repo>/<user>/test:0.2docker push <repo>/<user>/test:0.2You can also combine and say the latest version is 0.2 like:
docker tag <repo>/<user>/test:latest <repo>/<user>/test:0.2docker push <repo>/<user>/test:0.2So those will point the same image layer.