michaelnet/backup/README.md

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# Generic Backup Host
## Crontab
Runs on the second of every month.
```
0 0 2 * * cd /home/USER/backups && bash prune.sh
```
## Filename Pattern
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)
```
Regex to match backups that are *not* from the first of every month, using the above format:
```
[0-9A-Za-z]+-data-[0-9]{4}-[0-9]{2}-([^0][0-9]|[0-9][^1])_.*
```