Untested early beta, use with caution
This version has some major changes that affect how zfs-autobackup operates.
Tag support
You can now use --tag to add a tag to the snapshot names. While zfs-autobackup ignores these, they are usefull for the system administrator.
For example if you make an extra manual snapshot, you might want to tag this:
zfs-autobackup offsite1 --tag "pre upgrade snapshot"
( yes you can use spaces)
Your snapshot will be something like @offsite1-20241014123300_pre upgrade snapshot"
This will add an _ and the text,
Also see the discussion in #151
Impact on existing users: You can no longer use the tag seperator (underscore by default) in snapshot names.
Bookmark support
By default zfs-autobackup will now use bookmarks if possible. This means you can delete the common snapshot on the source side, possibly saving space.
Because of this, the scheduler can now delete all snapshots on the source side, if conifgured like that. (e.g. --keep-source=0)
This also means we no longer use holds for snapshots on the source side, to make things easier.
The guid of the target-path will be used as tag for bookmarks. This way you can send data to multiple locations, without zfs-autobackup destroying bookmarks that are still needed.
Bookmarks only get used if both sides support it.
To get back the old behaviour use --no-bookmarks.
autobackup: properties are now filtered by default (see #150 and #221)
A long standing issue was the fact that it sometimes was hard to distinguish a source from an actual backup
We had some tricks for it like --exclude-received, but its much better if we just would filter all autobackup: properties by default.
So thats what zfs-autobackup does by default now: All properties that start with autobackup:... are filtered.
If you make a zfs-autobackup of an existing zfs-autobackup, you might want to pay attention if this still works like you expect.
Other stuff
These changes should have no impact on existing zfs-autobackup users:
- Improved common snapshot finding: now includes bookmarks as well, and can find any bookmark or snapshot combination that matches the GUID, regardless of names.
- Implement Issue #245 Snapshot exclude patterns
- Major internal refactoring. (cleaned up caching, removed virtual snapshots, removed CachedProperty)