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Centauri
Centauri is a TLS-terminating reverse HTTP proxy written in Go.
Current status
Centauri is considered stable and feature complete. It is deployed in production in several places. Any breaking changes going forward will result in major version bumps.
Features
Automatic TLS certificates and OCSP stapling
Centauri will obtain TLS certificates from an ACME provider such as Let's Encrypt. It will keep these up to date, and ensure each one has a valid OCSP staple that can be sent to clients.
Centauri runs with sensible defaults for establishing TLS connections, in line with Mozilla's Intermediate recommendations. This balances security with accessibility for older clients.
Simple route configuration
Centauri's route configuration looks like this:
route www.example.com example.com
upstream server1.internal.example.com:8080
route www.example.net
upstream server1.internal.example.com:8080
You don't need to configure separate front-ends or back-ends, or
deal with proxy_pass instructions.
Native Tailscale support
Centauri can listen directly on a Tailscale network instead of a public TCP port, removing the need for complex configuration or sidecar containers. Change the "frontend" setting to "tailscale", supply an API key, and Centauri will connect directly to your Tailscale network!
Centauri will also pass details of the Tailscale user making the request to the upstream service, via the following headers:
Tailscale-User-LoginTailscale-User-NameTailscale-User-Profile-Pic
Usage
Documentation is available at https://centauri.readthedocs.io/en/latest/.
Feedback / Contributing
Feedback, feature requests, bug reports and pull requests are all welcome!