dotfiles/system-modules/nx2site/proxy.nix

{ config, pkgs, lib, domain, ... }:
{
  sops.secrets = {
    "nx2site/sslCertificate.pem" = { owner = config.services.nginx.user; };
    "nx2site/sslCertificateKey.pem" = { owner = config.services.nginx.user; };
    "nx2site/dhparams.pem" = { owner = config.services.nginx.user; };
  };
  security.acme = {
    acceptTerms = true;
    defaults = {
      email = "acme@${domain}";
      webroot = "/var/nginx/webroot";
      group = "nginx";
    };
    certs = {
      "${domain}" = {
        extraDomainNames = builtins.map (subd: "${subd}.${domain}") [ "git" "pw" "sync" ];
      };
    };
  };
  users.users."nginx" = {
    extraGroups = [ "nginx" "acme" ];
    useDefaultShell = false;
    linger = true;
    home = "/var/nginx/";
    homeMode = "770";
    createHome = true;
    isSystemUser = true;
    isNormalUser = false;
  };
  systemd.services.nginx.serviceConfig.ProtectHome = "read-only";
	services.nginx = let 
    dl = [ 
      { addr = "0.0.0.0"; port = 443; ssl = true; }
      { addr = "0.0.0.0"; port = 80; ssl = false; }
      { addr = "[::0]"; port = 443; ssl = true; }
      { addr = "[::0]"; port = 80; ssl = false; }
    ];
  in {
    enable = true;
    user = "nginx";
    group = "nginx";
    additionalModules = [];
    # appendConfig = '''';
    clientMaxBodySize = "20m";
    defaultHTTPListenPort = 80;
    defaultListenAddresses = [ "0.0.0.0" ] ++ lib.optional config.networking.enableIPv6 "[::0]";
    defaultListen = dl;
    defaultMimeTypes = "${pkgs.mailcap}/etc/nginx/mime.types";
    defaultSSLListenPort = 443;
    enableQuicBPF = true;
    enableReload = true;
    package = pkgs.nginxQuic;
    proxyResolveWhileRunning = false;
    proxyTimeout = "20s";
    recommendedBrotliSettings = true;
    recommendedGzipSettings = true;
    recommendedOptimisation = true;
    recommendedProxySettings = true;
    recommendedTlsSettings = true;
    recommendedZstdSettings = true;
    serverTokens = false;
    sslDhparam = config.sops.secrets."nx2site/dhparams.pem".path;
    sslProtocols = "TLSv1.2 TLSv1.3";
    statusPage = false;
    streamConfig = ""; # udp config
    validateConfigFile = true;
    virtualHosts = let
      vh = {
        kTLS = true;
        http2 = true;
        http3 = true;
        http3_hq = true;
        quic = true;
        forceSSL = true;
        enableACME = true;
      };
    in {
      "${domain}" = vh // {
        root = "/var/nginx/webroot";
        default = true;
        listen = dl;
        locations = {
          "/" = {
            extraConfig = ''
              index index.html;
              if ($request_uri ~ ^/(.*)\.html(\?|$)) {
                 return 301 /$1;
              }
              try_files $uri $uri.html $uri/ /404.html =404;
            '';
          };
          "~^(/ba)$"                   = { return = "301 /BA.pdf"; };
          "/.well-known/matrix/client" = { return = "502"; };
          "/.well-known/matrix/server" = { return = "502"; };
        }; 
      }; 
      "matrix.${domain}" = {
        listen = dl;
        locations = { "~.*" = { return = "502"; }; }; 
      };
      # "pw.${domain}" = vh // {
      #   listen = dl;
      #   locations = let d = "pw.docker:80"; in {
      #     "/" = { proxyPass = "http://${d}"; };
      #     "/admin" = { proxyPass = "http://${d}"; };
      #     "/notifications/hub" = { proxyPass = "http://${d}"; };
      #     "/notifications/hub/negotiate" = { proxyPass = "http://${d}"; };
      #   }; 
      # };
      "pw.${domain}" = vh // {
        listen = dl;
        locations = let 
          d = with config.services.vaultwarden.config; "${ROCKET_ADDRESS}:${builtins.toString ROCKET_PORT}"; 
        in {
          "/" = { proxyPass = "http://${d}"; };
          "/admin" = { proxyPass = "http://${d}"; };
          "/notifications/hub" = { proxyPass = "http://${d}"; };
          "/notifications/hub/negotiate" = { proxyPass = "http://${d}"; };
        }; 
      };
      "sync.${domain}" = vh // {
        listen = dl;
        locations = { "/" = { proxyPass = "http://127.0.0.1:11434"; }; }; 
      };
      # "git.${domain}" = vh // {
      #   listen = dl;
      #   locations = { "/" = { proxyPass = "http://git.docker:3000"; }; }; 
      # };
      "git.${domain}" = vh // {
        http2 = false;
        listen = dl;
        locations = { "/" = { proxyPass = "http://127.0.0.1:3000"; }; }; 
      };
      "doc.${domain}" = vh // {
        listen = dl;
        locations = { "/" = { proxyPass = "http://127.0.0.1:8441"; }; }; 
      };
      "nc.${domain}" = vh // {
        # directly to nc 
      };
      "~^(.*).${domain}$" = {
        listen = dl;
        root = "/var/nginx/webroot";
        locations = { "~.*" = { return = "301 https://${domain}/502.html"; }; };
      };
    };
  };
}