Cozystack: Free PaaS platform and framework for building clouds

With Cozystack, you can transform your bunch of servers into an intelligent system with a simple REST API for spawning Kubernetes clusters, Database-as-a-Service, virtual machines, load balancers, HTTP caching services, and other services with ease. You can use Cozystack to build your own cloud or to provide a cost-effective development environments. https://cozystack.io/