Even the monitor event runs update_tickles(), which needs public IP
addresses and FAKE_CTDB_NUMNODES to be initialised. Currently this
works by default but soon we'll need FAKE_CTDB_NUMNODES in another
context.
Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com>