ZFS does not integrate with udev

[dwaite]

When using zfs, devices and volumes do not appear underneath /dev. It appears this is due to the udev support for zfs not being available. In addition, the udev rules require helper applications zvol_id and vdev_id, which aren't built by the zfs container. For this reason, the solution doesn't appear to be as simple as moving the rules into the udev container.

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RancherOS Version: (ros os version)
1.5.1

Where are you running RancherOS? (docker-machine, AWS, GCE, baremetal, etc.)
digitalocean

[rootwuj]

Tested with rancher/os:v1.5.2-rc1 from May 22
Verified fixed

Test:

$ sudo ros service enable zfs
$ sudo ros service up zfs
$ sudo zpool create zpool1 -m /mnt/zpool1 /dev/xxx
$ zfs create -V 128M -s zpool1/zvol

Result:

$ ls /dev/zvol
zpool1