DKP - DocKer compose Packer

Packs existent docker-compose project in executable single encrypted (GPG AES256) archive (tar + gz). It means, that you don't need to install DKP or remember procedure details during restore which dramatically reduces stress and make your life simpler. In the end - it's hard to remember how to restore backup made by N generations of administrators years ago before you...

The pipeline is:

flowchart TD
    A[tar volumes] -->B(tar images)
    B --> C[add env files and manifests]
    C --> D[add restore scripts]
    D --> E[compress and encrypt]
    E --> F[wrap to self-extracting file]

For backup you need:

• gpg
• python 3.8+ (see tests in workflow)
• sh
• tar
• gzip
• docker with compose plugin

For restore you need:

• gpg
• sed
• tar
• gzip

Installation

Recomended

pip install dkp

Alternative - just download dkp/dkp.py and make it executable.

Backward compatibility

Once backup created, the version of DKP doesn't matter anymore since archive is self-complete independent file.

New DKP versions may introduce more features as well as different layout of final archive, but it will not affect previous backups.

Usage

Create backup

usage: dkp [-h] [--output OUTPUT] [--skip-images] [--passphrase PASSPHRASE] [project]

DocKer compose Packer - backup compose project with all batteries included

positional arguments:
  project               Compose project name. Default is docker-compose-pack

options:
  -h, --help            show this help message and exit
  --output OUTPUT, -o OUTPUT
                        Output file. Default docker-compose-pack.bin
  --skip-images, -S     Do not archive images
  --passphrase PASSPHRASE, -p PASSPHRASE
                        Passphrase to encrypt backup. Can be set via env PASSPHRASE

Restore

Usage:

./path/to/backup/file [--restore/-r] [-s/--start] [-h/--help] [passphrase]

   passphrase      Key to decrypt archive. Can be set by env PASSPHRASE

  -h, --help       Show this help
  -r, --restore    Automatically restore project after unpacking
  -s, --start      Automatically start project after unpacking. Implicitly enables --restore