Docker save & load
docker save
Estimated reading time: 1 minute
Description
Save one or more images to a tar archive (streamed to STDOUT by default)
Usage
docker save [OPTIONS] IMAGE [IMAGE...]
Options
| Name, shorthand | Default | Description |
--output , -o |
Write to a file, instead of STDOUT |
Parent command
| Command | Description |
|---|---|
| docker | The base command for the Docker CLI. |
Extended 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
Cherry-pick particular tags
You can even cherry-pick particular tags of an image repository.
$ docker save -o ubuntu.tar ubuntu:lucid ubuntu:saucy
docker load
Estimated reading time: 1 minute
Description
Load an image from a tar archive or STDIN
Usage
docker load [OPTIONS]
Options
| Name, shorthand | Default | Description |
--input , -i |
Read from tar archive file, instead of STDIN | |
--quiet , -q |
Suppress the load output |
Parent command
| Command | Description |
|---|---|
| docker | The base command for the Docker CLI. |
Extended description
Load an image or repository from a tar archive (even if compressed with gzip, bzip2, or xz) from a file or STDIN. It restores both images and tags.
Examples
$ docker docker image ls REPOSITORY TAG IMAGE ID CREATED SIZE $ docker load < busybox.tar.gz Loaded image: busybox:latest $ docker images REPOSITORY TAG IMAGE ID CREATED SIZE busybox latest 769b9341d937 7 weeks ago 2.489 MB $ docker load --input fedora.tar Loaded image: fedora:rawhide Loaded image: fedora:20 $ docker images REPOSITORY TAG IMAGE ID CREATED SIZE busybox latest 769b9341d937 7 weeks ago 2.489 MB fedora rawhide 0d20aec6529d 7 weeks ago 387 MB fedora 20 58394af37342 7 weeks ago 385.5 MB fedora heisenbug 58394af37342 7 weeks ago 385.5 MB fedora latest 58394af37342 7 weeks ago 385.5 MB
You will need to save the docker image as a tar file:
docker save -o <save image to path> <image name>
Then copy your image to a new system with regular file transfer tools such as cp or scp. After that you will have to load the image into docker:
docker load -i <path to image tar file>
PS: You may need to sudo all commands.
docker save -o testxp.tar 347084c24033 #save imge:347084c24033 to file: testxp.tar docker load -i testxp.tar #load file:testxp.tar to get image docker run 347084c24033 #run image to get container docker rm -f b8b3e1503e6f #remove container:b8b3e1503e6f docker rmi 347084c24033 #remove image:347084c24033
docker run -d -e NLOGDIR=/var/log/ -e WWNamespace=dev -e ZKServerAddress=********* -p 5005:80 98006abba2695082cb9aa325ff2858285d8b6df09af517028405aed88c5410ff69d6f3e984fc
