NAME¶

docker-image-tag - Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE

SYNOPSIS¶

docker image tag SOURCE_IMAGE[:TAG] TARGET_IMAGE[:TAG]

DESCRIPTION¶

Assigns a new alias to an image in a registry. An alias refers to the entire image name including the optional TAG after the ':'.

OPTIONS¶

NAME
The image name which is made up of slash-separated name components,
optionally prefixed by a registry hostname. The hostname must comply with
standard DNS rules, but may not contain underscores. If a hostname is
present, it may optionally be followed by a port number in the format
:8080. If not present, the command uses Docker's public registry located at
registry-1.docker.io by default. Name components may contain lowercase
letters, digits and separators. A separator is defined as a period, one or
two underscores, or one or more dashes. A name component may not start or end
with a separator.

TAG
The tag assigned to the image to version and distinguish images with the same
name. The tag name must be valid ASCII and may contain lowercase and
uppercase letters, digits, underscores, periods and hyphens. A tag name
may not start with a period or a hyphen and may contain a maximum of 128
characters.

EXAMPLES¶

Tagging an image referenced by ID¶

To tag a local image with ID "0e5574283393" into the "fedora" repository with "version1.0":

docker image tag 0e5574283393 fedora/httpd:version1.0

Tagging an image referenced by Name¶

To tag a local image with name "httpd" into the "fedora" repository with "version1.0":

docker image tag httpd fedora/httpd:version1.0

Note that since the tag name is not specified, the alias is created for an existing local version httpd:latest.

Tagging an image referenced by Name and Tag¶

To tag a local image with name "httpd" and tag "test" into the "fedora" repository with "version1.0.test":

docker image tag httpd:test fedora/httpd:version1.0.test

Tagging an image for a private repository¶

Before pushing an image to a private registry and not the central Docker registry you must tag it with the registry hostname and port (if needed).

docker image tag 0e5574283393 myregistryhost:5000/fedora/httpd:version1.0

OPTIONS¶

-h, --help[=false] help for tag

SEE ALSO¶

docker-image(1)