I have a charm that can only run 1 unit, that is working great. When I deploy this charm, a machine is created via MAAS, the unit for my charm is installed and it runs just fine.
What I want to do is if the machine dies, have JuJu create a new machine and then deploy the charm and unit again to recover from the hardware failure.
I've looked at JuJu HA for the controllers but it doesn't mention recovering of charms on machines. Also note, I can only run 1 instance of this charm and I just want to make sure 1 is always running.