Last updated Jul 5, 2022

Sovereign is a JSON control-plane for Lyft's Envoy proxy. A control-plane communicates with Envoy using the XDS protocol in order to supply it with configuration.

Sovereign is written to be simple and extensible so that you can start basic and increase customizations when needed.


  • Some knowledge of Envoy
  • Python 3.8+


  • Flexible data input: Using sources sovereign can retrieve data from anywhere, whether it be over HTTP, file, inline, or some other format.
  • Node Matching: Sovereign can decide which configuration is provided to an Envoy based on an element of the discovery request.
  • User Interface: A read-only web interface is supplied so that you can view the resources served by the control-plane.
Sovereign Web Interface Example

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