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path: root/hosts/common/server/traefik.nix
blob: 3bc5d26e440c8c8491d87e08d72e4aa2278cfb9a (plain) (blame)
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{ pkgs, inputs, config, lib, ... }:

with lib;

let
  domain = "fcuny.xyz";
  mkServiceConfig = name: url: {
    http.routers."${name}" = {
      rule = "Host(`${name}.${domain}`)";
      service = "${name}";
      tls.certResolver = "le";
    };
    http.services."${name}" = { loadBalancer.servers = [{ url = url; }]; };
  };
in {
  age.secrets.traefik_gcp_sa = {
    file = ../../../secrets/traefik/gcp_service_account.json.age;
    owner = "traefik";
  };

  services.traefik = {
    enable = true;

    staticConfigOptions = {
      metrics.prometheus = {
        addEntryPointsLabels = true;
        addRoutersLabels = true;
        addServicesLabels = true;
      };

      global = {
        checkNewVersion = false;
        sendAnonymousUsage = false;
      };

      accessLog.format = "json";
      log.level = "warn";

      entryPoints.http.http.redirections = {
        entryPoint.to = "https";
        entryPoint.scheme = "https";
        entryPoint.permanent = true;
      };

      entryPoints.http.address = ":80";
      entryPoints.https.address = ":443";
      # the default is 8080, which conflict with unifi
      entryPoints.traefik.address = ":8090";

      api = {
        dashboard = true;
        insecure = true;
      };

      # The unifi controller runs on HTTPS with a self-signed
      # certificate, as a result we need to accept insecure
      # certificates.
      serversTransport.insecureSkipVerify = true;

      certificatesResolvers = {
        le.acme = {
          email = "franck@fcuny.net";
          storage = "/var/lib/traefik/cert.json";
          dnsChallenge = {
            provider = "gcloud";
            delayBeforeCheck = 0;
          };
        };
      };
    };
  };

  services.traefik.dynamicConfigOptions = mkMerge [
    (mkServiceConfig "dash" "http://127.0.0.1:3000/")
    (mkServiceConfig "bt" "http://127.0.0.1:9091/")
    (mkServiceConfig "unifi" "https://127.0.0.1:8443/")
  ];

  systemd.services.traefik.environment.GCE_SERVICE_ACCOUNT_FILE =
    config.age.secrets.traefik_gcp_sa.path;
  systemd.services.traefik.environment.GCE_PROJECT = "fcuny-homelab";

  networking.firewall.allowedTCPPorts = [ 80 443 ];
  networking.firewall.allowedUDPPorts = [ 443 ]; # QUIC
}