File: save.md

package info (click to toggle)
docker.io 20.10.24%2Bdfsg1-1%2Bdeb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bookworm-proposed-updates
  • size: 60,824 kB
  • sloc: sh: 5,621; makefile: 593; ansic: 179; python: 162; asm: 7
file content (61 lines) | stat: -rw-r--r-- 1,253 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
---
title: "save"
description: "The save command description and usage"
keywords: "tarred, repository, backup"
---

# 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`.

```console
$ 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.

```console
$ docker save myimage:latest | gzip > myimage_latest.tar.gz
```

### Cherry-pick particular tags

You can even cherry-pick particular tags of an image repository.

```console
$ docker save -o ubuntu.tar ubuntu:lucid ubuntu:saucy
```