HashKnownHosts No
Host *.openstack.org
  StrictHostKeyChecking No
  UserKnownHostsFile ~/.ssh/known_hosts

# NOTE(notmorgan): It is assumed that slaves are logged into
# not via a hostname ending in ".openstack.org" such
# as by IP address. This prevents storing the host keys of
# these slave hosts
Host * !*.openstack.org
  StrictHostKeyChecking No
  UserKnownHostsFile /dev/null