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79c9e527a3
Keep frontmatter for docker, dockerd and index markdown files. Also needs to move cli.md > docker.md before generation and then move it back because cli.md is needed for yaml generation on docs website: https://github.com/docker/cli/pull/3924#discussion_r1059986605 Signed-off-by: Kevin Alvarez <crazy-max@users.noreply.github.com> Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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save
Save one or more images to a tar archive (streamed to STDOUT by default)
Aliases
docker image save, docker save
Options
| Name | Type | Default | Description |
|---|---|---|---|
-o, --output |
string |
Write to a file, instead of STDOUT |
Description
Produces a tarred repository to the standard output stream.
Contains all parent layers, and all tags + versions, or specified repo:tag, for
each argument provided.
Examples
Create a backup that can then be used with docker load.
$ docker save busybox > busybox.tar
$ ls -sh busybox.tar
2.7M busybox.tar
$ docker save --output busybox.tar busybox
$ ls -sh busybox.tar
2.7M busybox.tar
$ docker save -o fedora-all.tar fedora
$ docker save -o fedora-latest.tar fedora:latest
Save an image to a tar.gz file using gzip
You can use gzip to save the image file and make the backup smaller.
$ docker save myimage:latest | gzip > myimage_latest.tar.gz
Cherry-pick particular tags
You can even cherry-pick particular tags of an image repository.
$ docker save -o ubuntu.tar ubuntu:lucid ubuntu:saucy