[ideal0227]

Yea. They are similar in functionality.

But they work differently. The operator does not really “schedule” containers. It finishes the controlling logic by using Kubernetes APIs. For example, it uses native Kubernetes health checking, service discovery, deployment. It works completely on top of Kubernetes API, so no specialized scheduler, executor or proxy are needed comparing to https://github.com/mesosphere/etcd-mesos/blob/master/docs/ar....

The advantages of Mesos is exposing lower level APIs and resources to allow more control. The etcd operator we built does not really need that. Building this kind of application operator may be simpler on k8s than on native Mesos.

Disclaimer: I work at CoreOS on Kubernetes and etcd.