Automatically spin up droplets depending on the current load
I want to setup a master droplet with some kind of orchestration/provisioning tool and then say "here is an initial Linux slave and an initial FreeBSD slave. When either type is overloaded, automatically spin up additional droplets of that type".
Basically, automatic horizontal scaling of two server pools. I don't want to manually have to create new droplet, it needs to be automatic depending on the load.
Can someone point me in the right direction? I've been reading around about various orchestration and provisioning tools but I just got lost in the plethora of different solutions and buzzwords which may or may not be what I am looking for.