https://github.com/liske/dpns

docker pull & save
https://github.com/liske/dpns

alpine-linux docker docker-images docker-registry

Last synced: about 1 month ago
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docker pull & save

• Host: GitHub
• URL: https://github.com/liske/dpns
• Owner: liske
• License: gpl-3.0
• Created: 2017-11-12T21:53:10.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2023-02-24T19:36:29.000Z (over 1 year ago)
• Last Synced: 2024-08-01T13:38:13.916Z (3 months ago)
• Topics: alpine-linux, docker, docker-images, docker-registry
• Language: Shell
• Size: 24.4 KB
• Stars: 3
• Watchers: 3
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# Docker Pull & Save

## About

DPNS is a small script to pull a list of docker images and save them into a directory. Later those dumps can be loaded from disk into a local docker engine again.

This might help to sync images for offline docker hosts (w/o access to registries) or running [Alpine Linux](https://alpinelinux.org/) in diskless mode w/o adding the docker data directory (`/var/lib/docker`) to the [local backup](http://wiki.alpinelinux.org/wiki/Alpine_local_backup).

The following commands are provided:

- **dpns-load** - loads docker image dumps into dockerd

- **dpns-run** - loads docker image dumps and starts configured container stacks

  using *docker-compose*

- **dpns-save** - pulls docker image versions and dumps them to disk and removes

  obsolete image dumps

## Install on Alpine Linux

It is [available](https://pkgs.alpinelinux.org/packages?name=dpns) in the *testing* repository of the *edge* branch:

```

~ # apk add dpns

```

Use `rc-update` to enable dpns to load docker images and run stacks on startup:

```

~ # rc-update add dpns

 * service dpns added to runlevel sysinit

```

## Configuration

The configuration files are located within of the `/etc/dpns` directory:

- **dpns.conf** - base configuration

- **images.conf** - list of docker images to save and load

- **composes.conf** - list of docker compose files/directories started by `dpns-run`