This hopefully makes the test less flakey (or removes any flake that
would be caused by the test itself).
1. Adds tail of cluster daemon logs when there is a test failure so we
can more easily see what may be happening
2. Scans the daemon logs to check if the key is rotated before
restarting the daemon. This is a little hacky but a little better
than assuming it is done after a hard-coded 3 seconds.
3. Cleans up the `node ls` check such that it uses a poll function
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
fbdc02534a