In some cases you don't want images to be updated to newer versions, but prefer to use aįixed version of an image. For example,ĭocker image pull ubuntu:14.04 pulls the latest version of the Ubuntu 14.04 image. When using tags, you can docker image pull an imageĪgain to make sure you have the most up-to-date version of that image. Using names and tags is aĬonvenient way to work with images. So far, you've pulled images by their name (and "tag"). Pull an image by digest (immutable identifier)
#Docker run image by repo name not id drivers#
Understand images, containers, and storage drivers
Because they are the same image, their layers are stored only once and doįor more information about images, layers, and the content-addressable store, refer to In the example above, debian:jessie andĭebian:latest have the same image ID because they are actually the same image tagged withĭifferent names. To see which images are present locally, use the docker-images(1) command:ĭebian jessie f50f9524513f 5 days ago 125.1 MBĭebian latest f50f9524513f 5 days ago 125.1 MBĭocker uses a content-addressable image store, and the image ID is a SHA256 digestĬovering the image's configuration and layers. Status: Downloaded newer image for debian:jessie Pulling the debian:jessie image therefore only pulls its metadata, but For example, the debian:jessie image shares both layers Two layers fdd5d7827f33 and a3ed95caeb02. In the example above, the image consists of Status: Downloaded newer image for debian:latestĭocker images can consist of multiple layers. If no tag is provided, Docker Engine uses the :latest tag as a default.
#Docker run image by repo name not id download#
To download a particular image, or set of images (i.e., a repository), use docker image pull. If you do not specify a REGISTRY_HOST, the command uses Docker's public registry located Pulled down including any tags (see the option -a or -all-tags).
One image for a repository (e.g., fedora) then all images for that repository name can be This command pulls down an image or a repository from a registry. Provided by: docker.io_17.12.1-0ubuntu1_amd64ĭocker-image-pull - Pull an image or a repository from a registry
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