In Fedora, there is the Fedora Tools container [1], in RHEL, there is the RHEL Tools container. I don't envision either of those going away because they allow you to do all kinds of fancy stuff including things that require kernel compatibility, like SystemTap, core dumps, etc.

I am a product manager for containers/rhel/CoreOS at Red Hat, and I very much foresee a similar container for Red Hat CoreOS which will provide similar functionality for troubleshooting kernel, and user space (aka other containers) problems.

[1]: https://www.projectatomic.io/blog/2015/09/introducing-the-fe... [2]: https://developers.redhat.com/blog/2015/03/11/introducing-th...