Docker pull: Difference between revisions
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=Overview= | =Overview= | ||
Pull an [[Docker Concepts#Image|image]] or a [[Docker Concepts#Image_Repository|repository]] from a [[Docker_Concepts#Image_Registry|registry]] and place it into the [[Docker_Concepts#Local_Image_Registry|local registry]]. By default the command pulls from [[Docker_Concepts#Docker_Hub|Docker Hub]]. | Pull an [[Docker Concepts#Image|image]] or a [[Docker Concepts#Image_Repository|repository]] from a [[Docker_Concepts#Image_Registry|registry]] and place it into the [[Docker_Concepts#Local_Image_Registry|local registry]]. By default, unless an explicit registry name is specified, the command pulls from [[Docker_Concepts#Docker_Hub|Docker Hub]]. assuming "docker.io" as registry name. For more details on the URL semantics see [[Docker Concepts#URL]]. | ||
docker pull <''name''>[:<''tag''>] | docker pull <''name''>[:<''tag''>] | ||
Revision as of 04:24, 17 January 2018
External
Internal
Overview
Pull an image or a repository from a registry and place it into the local registry. By default, unless an explicit registry name is specified, the command pulls from Docker Hub. assuming "docker.io" as registry name. For more details on the URL semantics see Docker Concepts#URL.
docker pull <name>[:<tag>]
The command pulls each layer separately, and it will only pull the layers that do not exist in the local repository.
The command accepts an image name or a repository name.
Example
docker pull registry.access.redhat.com/openshift3/jenkins-2-rhel7 Using default tag: latest Trying to pull repository registry.access.redhat.com/openshift3/jenkins-2-rhel7 ... sha256:c2e5ffc909fc598628caebe56571849cbcbeea6c99f885a9870cb8c5967d5111: Pulling from registry.access.redhat.com/openshift3/jenkins-2-rhel7 26e5ed6899db: Already exists 66dbe984a319: Already exists 634b7b97a070: Already exists Digest: sha256:c2e5ffc909fc598628caebe56571849cbcbeea6c99f885a9870cb8c5967d5111 Status: Image is up to date for registry.access.redhat.com/openshift3/jenkins-2-rhel7:latest
Pull from a Different Registry
By default, docker pull pulls images from Docker Hub, but an image can be pulled form a different registry by specifying the registry path as prefix of the image name.
docker pull registry.access.redhat.com/rhscl/postgresql-95-rhel7