% DOCKER(1) Docker User Manuals
% Docker Community
% JUNE 2014
# NAME
docker-pull - Pull an image or a repository from a registry

# SYNOPSIS
**docker pull**
[**-a**|**--all-tags**]
[**--help**] 
NAME[:TAG] | [REGISTRY_HOST[:REGISTRY_PORT]/]NAME[:TAG]

# DESCRIPTION

This command pulls down an image or a repository from a registry. If
there is more than one image for a repository (e.g., fedora) then all
images for that repository name can be pulled down including any tags
(see the option **-a** or **--all-tags**).
    
If you do not specify a `REGISTRY_HOST`, the command uses Docker's public
registry located at `registry-1.docker.io` by default. 

# OPTIONS
**-a**, **--all-tags**=*true*|*false*
   Download all tagged images in the repository. The default is *false*.

**--help**
  Print usage statement

# EXAMPLE

## Pull a repository with multiple images with the -a|--all-tags option set to true.   
Note that if the  image is previously downloaded then the status would be
`Status: Image is up to date for fedora`.

    $ docker pull --all-tags fedora
    Pulling repository fedora
    ad57ef8d78d7: Download complete
    105182bb5e8b: Download complete
    511136ea3c5a: Download complete
    73bd853d2ea5: Download complete

    Status: Downloaded newer image for fedora

    $ docker images
    REPOSITORY   TAG         IMAGE ID        CREATED      SIZE
    fedora       rawhide     ad57ef8d78d7    5 days ago   359.3 MB
    fedora       20          105182bb5e8b    5 days ago   372.7 MB
    fedora       heisenbug   105182bb5e8b    5 days ago   372.7 MB
    fedora       latest      105182bb5e8b    5 days ago   372.7 MB

## Pull a repository with the -a|--all-tags option set to false (this is the default).

    $ docker pull debian
    Using default tag: latest
    latest: Pulling from library/debian
    2c49f83e0b13: Pull complete 
    4a5e6db8c069: Pull complete 

    Status: Downloaded newer image for debian:latest
    
    $ docker images
    REPOSITORY   TAG         IMAGE ID        CREATED      SIZE
    debian       latest     4a5e6db8c069     5 days ago   125.1 MB
         

## Pull an image, manually specifying path to Docker's public registry and tag
Note that if the  image is previously downloaded then the status would be
`Status: Image is up to date for registry.hub.docker.com/fedora:20`

    $ docker pull registry.hub.docker.com/fedora:20
    Pulling repository fedora
    3f2fed40e4b0: Download complete 
    511136ea3c5a: Download complete 
    fd241224e9cf: Download complete 

    Status: Downloaded newer image for registry.hub.docker.com/fedora:20

    $ docker images
    REPOSITORY   TAG         IMAGE ID        CREATED      SIZE
    fedora       20          3f2fed40e4b0    4 days ago   372.7 MB


# HISTORY
April 2014, Originally compiled by William Henry (whenry at redhat dot com)
based on docker.com source material and internal work.
June 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
August 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
April 2015, updated by John Willis <john.willis@docker.com>
April 2015, updated by Mary Anthony for v2 <mary@docker.com>
September 2015, updated by Sally O'Malley <somalley@redhat.com>
