Based on their words “K8s is app centric as openstack is Infra centric”. eBay faced many challenges to run K8s. It was hard to make them work seamesslessly. Challenges like multi-tenancy, app security, container registry have been addressed in order to make this work (check on the slides to get more of those)
Tessmaster is their own deployment, running on k8s to manage k8s. They showed a live demo how tessmaster could thru openstack and k8s heal all k8s cluster running company wide.
They are releasing the code in a few. Tessmaster can run over any kind of cloud platform as openstack, google, azure
Also, I am attaching some interesting figures of what they have today.