Docker with CoreOS and fleet will get you pretty far on that front. You can just specify that you want 6 of container x running across the cluster, and 3 of con

Docker with CoreOS and fleet will get you pretty far on that front. You can just specify that you want 6 of container x running across the cluster, and 3 of container y. Supplementing this with Hashicorp tools like Terraform and Consul can get you to the last step.