Running Kubernetes on CoreOS is a great start, but you may find that you want a higher level of support. Enter Tectonic, the CoreOS enterprise offering for running Kubernetes with CoreOS. Tectonic uses many of the components we already discussed. Both Docker and rkt runtimes are supported. In addition, Kubernetes, etcd, and flannel are packaged together to give a full stack of cluster orchestration. We discussed flannel briefly in Chapter 3, Working with Networking, Load Balancers, and Ingress. It is an overlay network that uses a model similar to the native Kubernetes model, and uses etcd as a backend.

Offering a support package similar to Red Hat, CoreOS also provides 24/7 support for the open source software that Tectonic is built on. Tectonic also provides regular cluster updates and a nice dashboard with views for all of the components of Kubernetes. CoreUpdate allows users to have more control of the automatic update process. In addition, it ships with modules for monitoring, SSO, and other security features.

As CoreOS is integrated into Red Hat, this offering will be replaced over time with a Red Hat approach.