Derper

This image is forked from fredliang44's repo and has the source images changed to Chainguard images.

Setup

required: set env DERP_DOMAIN to your domain

docker run -e DERP_DOMAIN=derper.your-domain.com -p 80:80 -p 443:443 -p 3478:3478/udp fredliang/derper

env	required	description	default value
DERP_DOMAIN	true	derper server hostname	your-hostname.com
DERP_CERT_DIR	false	directory to store LetsEncrypt certs(if addr's port is :443)	/app/certs
DERP_CERT_MODE	false	mode for getting a cert. possible options: manual, letsencrypt	letsencrypt
DERP_ADDR	false	listening server address	:443
DERP_STUN	false	also run a STUN server	true
DERP_STUN_PORT	false	The UDP port on which to serve STUN.	3478
DERP_HTTP_PORT	false	The port on which to serve HTTP. Set to -1 to disable	80
DERP_VERIFY_CLIENTS	false	verify clients to this DERP server through a local tailscaled instance	false

Usage

Fully DERP setup offical documentation: https://tailscale.com/kb/1118/custom-derp-servers/

Client verification

In order to use DERP_VERIFY_CLIENTS, the container needs access to Tailscale's Local API, which can usually be accessed through /var/run/tailscale/tailscaled.sock. If you're running Tailscale bare-metal on Linux, adding this to the docker run command should be enough: -v /var/run/tailscale/tailscaled.sock:/var/run/tailscale/tailscaled.sock