Migrate zfs-share to upstart on Ubuntu about pkg-zfs

[dajhorn]

This is status quo because the same code is currently built for both of Debian and Ubuntu. I am intending to do these things when I branch for Wheezy. (dajhorn/pkg-zfs#46)

If you submit a patch, then I will quickly add it to the Quantal builds.

[pdf]

Yeah, I assumed as much. Was concerned it might be more overhead than it's worth, but if the split's going to be desirable/required anyway, all good. I'll shoot through a patch in the next couple of days. Should I base it on master or the quantal branch?

[pdf]

This is harder than expected, due to the current state of NFS packaging in Ubuntu. Nearly all NFS-related daemons are now handled by Upstart, but nfs-kernel-server is not, and there are no events emitted by SysV scripts (just another Upstart design flaw), so an Upstart job can't depend on nfs-kernel-server. There's also this bug that will impact the current script.

[dajhorn]

I'm adding the 'upstream' tag to this ticket because it will be difficult to properly implement with side-loaded packages.

[pdf]

Yeah, NFS init in Ubuntu is still a mess. There may be a way to make this work for NFS by watching for an nfsd mount event, but because share also handles SMB (and iSCSI eventually), that's probably not adequate.

[dajhorn]

I'm closing this ticket because upstart is now deprecated in Ubuntu per:

• http://www.markshuttleworth.com/archives/1316

Any effort here would be better put into integrating the systemd parts that came with commit openzfs/zfs@881f45c in the pending ZoL 0.6.3 release.