michaelnet/backup

Generic Backup Host

Crontab

Runs on the second of every month.

0 0 2 * * cd /home/USER/backups && bash prune.sh

Filenames

Container volume backups are of the format:

gitea-data-2023-06-17_050002.tar.gz.enc
^          ^                ^
|          |                Backups are encrypted tarballs
|          |
|          ISO Datetime separated by _
|
Container volume name (*-data)

Matching

Regex to match backups that are not from the first of every month:

.*-data-\d{4}-\d{2}-([^0][0-9]|[0-9][^1])_.*