Stackube (previously called Hypernetes) is a multitenant distribution that uses Hyper containers as well as some OpenStack components for authentication, persistent storage, and networking. Since containers don't share the host kernel, it is safe to run containers of different tenants on the same physical host. Stackube uses Frakti as its container runtime, of course.

In this section, we've covered the various runtime engines that Kubernetes supports, as well as the trend toward standardization and convergence. In the next section, we'll take a step back and look at the big picture, as well as how Kubernetes fits into the CI/CD pipeline.