pages-server/examples/haproxy-sni
pat-s f407fd3ae4 Add prettier config and format files (#319)
Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/319
Reviewed-by: crapStone <codeberg@crapstone.dev>
Co-authored-by: pat-s <patrick.schratz@gmail.com>
Co-committed-by: pat-s <patrick.schratz@gmail.com>
2024-04-28 20:47:04 +00:00
..
gitea-www small cleanup (#259) 2023-11-15 17:59:04 +00:00
haproxy-certificates small cleanup (#259) 2023-11-15 17:59:04 +00:00
pages-www small cleanup (#259) 2023-11-15 17:59:04 +00:00
.gitignore small cleanup (#259) 2023-11-15 17:59:04 +00:00
dhparam.pem small cleanup (#259) 2023-11-15 17:59:04 +00:00
docker-compose.yml Add prettier config and format files (#319) 2024-04-28 20:47:04 +00:00
gitea.Caddyfile small cleanup (#259) 2023-11-15 17:59:04 +00:00
haproxy.cfg small cleanup (#259) 2023-11-15 17:59:04 +00:00
pages.Caddyfile small cleanup (#259) 2023-11-15 17:59:04 +00:00
README.md Add prettier config and format files (#319) 2024-04-28 20:47:04 +00:00
test.sh small cleanup (#259) 2023-11-15 17:59:04 +00:00

HAProxy with SNI & Host-based rules

This is a proof of concept, enabling HAProxy to use either SNI to redirect to backends with their own HTTPS certificates (which are then fully exposed to the client; HAProxy only proxies on a TCP level in that case), as well as to terminate HTTPS and use the Host header to redirect to backends that use HTTP (or a new HTTPS connection).

How it works

  1. The http_redirect_frontend is only there to listen on port 80 and redirect every request to HTTPS.
  2. The https_sni_frontend listens on port 443 and chooses a backend based on the SNI hostname of the TLS connection.
  3. The https_termination_backend passes all requests to a unix socket (using the plain TCP data).
  4. The https_termination_frontend listens on said unix socket, terminates the HTTPS connections and then chooses a backend based on the Host header.

In the example (see haproxy.cfg), the pages_backend is listening via HTTPS and is providing its own HTTPS certificates, while the gitea_backend only provides HTTP.

How to test

docker-compose up &
./test.sh
docker-compose down

# For manual testing: all HTTPS URLs connect to localhost:443 & certificates are not verified.
./test.sh [curl-options...] <url>

Screenshot of the test script's output