66 lines
2.0 KiB
Markdown
66 lines
2.0 KiB
Markdown
% DOCKER(1) Docker User Manuals
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% Docker Community
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% JUNE 2014
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# NAME
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docker-tag - Tag an image into a repository
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# SYNOPSIS
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**docker tag**
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[**-f**|**--force**[=*false*]]
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[**--help**]
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IMAGE[:TAG] [REGISTRY_HOST/][USERNAME/]NAME[:TAG]
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# DESCRIPTION
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Assigns a new alias to an image in a registry. An alias refers to the
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entire image name including the optional `TAG` after the ':'.
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If you do not specify a `REGISTRY_HOST`, the command uses Docker's public
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registry located at `registry-1.docker.io` by default.
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# "OPTIONS"
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**-f**, **--force**=*true*|*false*
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When set to true, force the alias. The default is *false*.
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**--help**
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Print usage statement.
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**REGISTRY_HOST**
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The hostname of the registry if required. This may also include the port
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separated by a ':'
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**USERNAME**
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The username or other qualifying identifier for the image.
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**NAME**
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The image name.
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**TAG**
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The tag you are assigning to the image. Though this is arbitrary it is
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recommended to be used for a version to distinguish images with the same name.
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Also, for consistency tags should only include a-z0-9-_. .
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Note that here TAG is a part of the overall name or "tag".
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# EXAMPLES
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## Giving an image a new alias
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Here is an example of aliasing an image (e.g., 0e5574283393) as "httpd" and
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tagging it into the "fedora" repository with "version1.0":
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docker tag 0e5574283393 fedora/httpd:version1.0
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## Tagging an image for a private repository
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To push an image to a private registry and not the central Docker
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registry you must tag it with the registry hostname and port (if needed).
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docker tag 0e5574283393 myregistryhost:5000/fedora/httpd:version1.0
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# HISTORY
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April 2014, Originally compiled by William Henry (whenry at redhat dot com)
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based on docker.com source material and internal work.
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June 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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July 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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April 2015, updated by Mary Anthony for v2 <mary@docker.com>
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June 2015, updated by Sally O'Malley <somalley@redhat.com>
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