CephFS Snapshotter

This is a script for creating and deleting CephFS snapshots. It is designed to be run as an hourly cron job e.g.:

15 * * * * /bin/bash -c "/opt/ceph_snapshotter/ceph_snapshot.py >> /var/log/ceph_snapshot.log 2>&1"

If you run the script on the same filesystem from multiple systems, it is advisable to vary the minute; it will only run once per hour even on multiple hosts.

Configuration

The default configuration file location is /etc/cephfs_snapshot.yaml - use the -c option to change this. This should contain something similar to what's in config.example.yaml - all times are in hours.

The following example makes snapshots of /scratch every 8 hours and deletes them after 168 hours (one week).

paths:
  /scratch:
    frequency: 8
    keep: 168