Document process for changing a Mac minion's ID and regenerating the key

[edunham]

@aneeshusa, this seems like the best way of getting ahold of you at the moment. I've tried just removing the old key and restarting Salt, but that doesn't cause the minion to show up in the master's unaccepted keys list. Will we have to generate keys on the master and transfer them to the minion as suggested in https://docs.saltstack.com/en/2017.7/topics/tutorials/preseed_key.html?

If you don't have time to sort this out, I can continue through trial and error, but I suspect you may already know the best practices.

[aneeshusa]

Changing the ID should be sufficient; IIRC Salt will generate a new key once it sees a new minion id.
I don't remember how our install process sets the minion id, but there are two places to look:

• It can be explicitly set in /etc/salt/minion (or an included file); update or add the new minion id here
• Salt will cache it in the /etc/salt/minion_id file; you can delete this file.

That plus a minion restart should be sufficient, let me know if it's not working. Emailing me directly is another good way to get a hold of me. (I filter GH emails into a separate folder which I check occasionally as well.)