etcd
Distributed, consistent key-value store that Kubernetes itself uses to store all cluster state, and a reliable building block for other distributed systems.
- Actively maintained
- Foundation-backed
- Well documented
- Permissive license
Overview
etcd stores data reliably across a cluster of machines using the Raft consensus algorithm, guaranteeing that all nodes agree on the current state even if some fail - the exact property Kubernetes relies on to store every object, config, and secret describing a cluster's desired state. It's a CNCF graduated project and one of the most battle-tested pieces of distributed systems infrastructure in production use.
etcd is a fit for teams building distributed systems that need strongly consistent coordination or configuration storage, whether that's running it themselves for a custom system or understanding it as the foundation underneath the Kubernetes entry already in this catalog.
Why it's in this catalog
Catalog rating: ★★★★☆ (4/5)
The distributed key-value store underlying Kubernetes itself; foundational infrastructure component.
- Foundational
- Foundation-governed
- Categories
- DevOps
- Languages
- Go
- License
- Apache-2.0
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