I've rebuilt the latest kubernetes and etcd sources (from fedora rawhide) for c7. Builds are available on CBS and in the virt7-testing repo.

kubernetes: https://cbs.centos.org/koji/taskinfo?taskID=7113 etcd: http://cbs.centos.org/koji/buildinfo?buildID=689

Please try them out and let me know if you see any issues.

Thanks!