SALT: changing a minions hostname

Recently I had the requirement to change a minions hostname. One might think that changing the hostname in /etc/hostname and/or the FQDN in /etc/hosts is sufficient, but you have to do some more steps.

1. update /etc/hostname and /etc/hosts
2. stop service
3. change minion id in /etc/salt/minion_id
4. start service

That's it...