coaxial/tarsnapper repository overview

⁠Tarsnapper Docker container

This container lets you run Tarsnapper on top of tarsnap. It uses configuration files for tarsnap and tarsnapper, mounted inside the container.

⁠Differences with Dangmai's tarsnapper⁠

• Based on Alpine 3.6 (smaller image, 102MB vs 306MB)
• Doesn't randomize the cron running time if not supplied
• Runs make only, since make expires old backups as well.
• Images are tagged by tarsnapper versions
• Only runs tarsnap --fsck when statring the container vs with every backup (it costs money to run since it transfers data from tarsnap)

⁠Tags

By tarsnapper version: 0.4, latest

⁠Usage

docker run \
-v ./tarsnap.key:/root/tarsnap.key:ro \
-v ./tarsnap.conf:/etc/tarsnap.conf:ro \
-v ./tarsnapper.conf:/etc/tarsnapper.conf:ro \
-v /path/to/backup:/backup:ro \
-v tarnsap_cache:/usr/local/tarsnap-cache \
-e "BACKUP_PERIODICITY=* 3 * * *" \
coaxial/tarsnapper:0.4

If not set, BACKUP_PERIODICITY defaults to * * * * 7 which translates to making a backup weekly on Sundays. Uses the crontab format.

Define your jobs (cf. tarsnapper docs⁠) in a configuration file mounted at /etc/tarsnapper.conf and you're off to the races.

⁠Alternatives

• dangmai/tarsnapper⁠
• atmoz/tarsnap⁠

⁠Contributing

PRs welcome, fork the repo and hack away.

⁠License

MIT (c) Coaxial 2018