This improves on a few issues which are not frequent but do sometimes
come up:
1. Check that the daemon is up before attempting to do anything
docker-ey in provisioning Ubuntu
2. Set a max retries for SSH so that if a request fails it attempts
again before giving up
Also have annotated a few of the SSH options slightly better.
Signed-off-by: Nathan LeClaire <nathan.leclaire@gmail.com>
Adds a check to find ssh-keygen in the user's $PATH, in the event it
can't find it, return an error with a friendly message
Signed-off-by: Simon Thulbourn <simon+github@thulbourn.com>
Dave Henderson
Evan Hazlett
Nathan LeClaire
Simon Thulbourn
Ben Firshman