ZFS SnapZD

I guess I'm rewriting Sanoid/Syncoid because I don't want 100 perl AURs on my machine

Notes

There are two programs included in this package

snapzd

Main program responsible for taking snapshot and managing ZFS datasets

snapzr

snapz reciever responsible for recieving snapshots. This must be installed on the target machine

Info

snapzd should be run as root snapzr can be run as root, but this encourages root ssh, so maybe don't do that. Instead, create a role account on the target machine called snapz and a group snapzr. The snapzr binary should have the setuid flag set. as root:

$ chown root:snapzr snapzr
$ chmod 4650 snapzr

if this is done, only users in the snapzr group can run snapzr. The binary WILL RUN AS ROOT. To ensure it's secure, snapzr has limited functionality - it takes just the name of the dataset to overwrite with the snapshot. This is configured in /etc/snapzd/recv/targets.yaml. This file should be owned by root.