docker-tag
Assign tags to existing Docker images.
TLDR
Assign a name and tag to a specific image ID
$ docker tag [id] [name]:[tag]
Assign a tag to a specific image
$ docker tag [image]:[current_tag] [image]:[new_tag]
Display help
$ docker tag
SYNOPSIS
docker tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]
DESCRIPTION
Alias for docker image tag.
OPTIONS
-h, --help[=false] help for tag
SEE ALSO
docker(1)