etcd is an open source, distributed, consistent key-value store for shared configuration, service discovery, and scheduler coordination. By using etcd, applications can ensure that even in the face of individual servers failing, the application will continue to work. etcd is a core component of CoreOS software that facilitates safe automatic updates, coordinating work being scheduled to hosts, and setting up overlay networking for containers.

linuxcontainers.org is the umbrella project behind LXC, LXD and CGManager.

The goal is to offer a distro and vendor neutral environment for the development of Linux container technologies. The project provides resources such as build machines, CI infrastructure, mailing-lists, website, e-mail, ... to the various projects under it.

• Incus
• IncusOS
• LXC
• LXCFS
• distrobuilder

Rocket is a new container runtime, designed for composability, security, and speed.