1.0 KiB
1.0 KiB
save
Usage: docker save [OPTIONS] IMAGE [IMAGE...]
Save an image(s) to a tar archive (streamed to STDOUT by default)
--help=false Print usage
-o, --output="" Write to a file, instead of STDOUT
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.
It is used to 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
It is even useful to cherry-pick particular tags of an image repository
$ docker save -o ubuntu.tar ubuntu:lucid ubuntu:saucy