An alternative implementation of the zfs-auto-snapshot service for Linux that is compatible with zfs-linux and zfs-fuse.
Automatically create, rotate, and destroy periodic ZFS snapshots. This is the utility that creates the @zfs-auto-snap_frequent, @zfs-auto-snap_hourly, @zfs-auto-snap_daily, @zfs-auto-snap_weekly, and @zfs-auto-snap_monthly snapshots if it is installed.
This program is a posixly correct bourne shell script. It depends only on the zfs utilities and cron, and can run in the dash shell.
I have tuned the cron jobs to suit my personal needs. The cron jobs mimic my setup on timeshit. This is my default schedule:
- 5 frequent snapshots
- 24 hourly snapshots
- 5 daily snapshots
- 3 weekly snapshots
- 2 monthly snapshots
- 5 apt snapshots
- 5 boot snapshots
The makefile automatically create the folder /etc/zfs-auto-snapshot where a script is positioned for an apt automation.
Under /etc/apt/apt.conf.d a file is created to pre-invoke our script. The current set-up creates a snapshot with the label apt (@zfs-auto-snap_apt) every time apt is invoked to install or update packages and it keeps a rotation of five snapshots.