You need to configure your Traefik to trust Forwarded headers by your front proxy In the example we use another instance of traefik with the container named cloudflare to simulate a front proxy
The "internal" Traefik instance is configured to trust the cloudflare forward headers This helps Traefik choose the right IP of the client: see https://doc.traefik.io/traefik/routing/entrypoints/#forwarded-headers
- "--entrypoints.web.forwardedheaders.trustedips=172.21.0.5"We configure the middleware to trust as well the IP:
- "traefik.http.middlewares.crowdsec1.plugin.bouncer.forwardedheaderstrustedips=172.21.0.5"To play the demo environment run:
make run_behindproxy