DockerCLI/docs/reference/commandline/save.md

71 lines
1.6 KiB
Markdown

---
title: "save"
description: "The save command description and usage"
keywords: "tarred, repository, backup"
---
<!-- This file is maintained within the docker/cli GitHub
repository at https://github.com/docker/cli/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# save
```markdown
Usage: docker save [OPTIONS] IMAGE [IMAGE...]
Save one or more images to a tar archive (streamed to STDOUT by default)
Options:
--help Print usage
-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`.
```bash
$ 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.
```bash
docker save myimage:latest | gzip > myimage_latest.tar.gz
```
### Cherry-pick particular tags
You can even cherry-pick particular tags of an image repository.
```bash
$ docker save -o ubuntu.tar ubuntu:lucid ubuntu:saucy
```