The etcd project is being proposed as an INCUBATION level CNCF project, sponsored by Brian Grant from the TOC: https://github.com/coreos/etcdetcd is a consistent distributed key-value store, designed to hold small amounts of data that can fit entirely in memory and mainly used as a separate coordination service for other distributed systems like Kubernetes. It is used by a variety organizations and projects: https://github.com/coreos/etcd/blob/master/Documentation/production-users.md