How do I configure Docker to use ZFS?

I'm trying to get docker to use an existing zpool. According to the Docker documentation I should set my storage driver in /etc/default/docker:

DOCKER_OPTS="--storage-driver=zfs"

However when I restart the service Docker will not startup:

level=fatal msg="Error starting daemon: error initializing graphdriver: prerequisites for driver not satisfied (wrong filesystem?)"

When trying docker daemon --storage-driver=zfs I get a similar error.

I am using Docker 1.5-1 in Xenial.

Solution 1:

you should probably also set zfs.fsName using --storage-opt zfs.fsName="filesystem name"

alternatively you can mount a zfs filesystem to /var/lib/docker