better use of distro.init - thanks Mark Kirkwood!

Signed-off-by: Alfredo Deza <alfredo@deza.pe>
re-raise so we halt execution of remote actions

Signed-off-by: Alfredo Deza <alfredo@deza.pe>
Merge pull request #41 from alfredodeza/5895

re-raise so we halt execution of remote actions
Merge pull request #40 from ceph/wip-5911

better use of distro.init - thanks Mark Kirkwood!