pobsync is a pull-based backup tool for sysadmins.
It creates rsync-based snapshots with hardlinking (--link-dest) and stores them centrally on a backup server.

Backups are pulled over SSH, not pushed, and are designed to be run from cron or manually.

Design overview

Runtime, config, logs and state live under /opt/pobsync
Backup data itself is stored under a configurable backup_root (e.g. /srv/backups)
Two snapshot types:
- scheduled
  Participates in retention pruning (daily / weekly / monthly / yearly)
- manual
  Kept outside the scheduled prune chain, defaults to hardlinking from the latest scheduled snapshot
Minimal dependencies (currently only PyYAML)

Requirements

Python 3.11+
rsync
ssh
Root or sudo access on the backup server
SSH keys already configured between backup server and remotes

Installation (system-wide, no venv)

This assumes you are installing as root or via sudo.

From the repository root:

python3 -m pip install --upgrade pip
sudo python3 -m pip install .