CrOS/modules/services/matrix/default.nix

{
  lib,
  config,
  ...
}: let
  fqdn = "matrix.wanderingcrow.net";
  baseUrl = "https://${fqdn}";
  clientConfig."m.homeserver".base_url = baseUrl;
  serverConfig."m.server" = "${fqdn}:443";
  mkWellKnown = data: ''
    default_type application/json;
    add_header Access-Control-Allow-Origin *;
    return 200 '${builtins.toJSON data}';
  '';
in {
  ############
  # Database #
  ############
  services.postgresql = {
    enable = true;
    ensureUsers = [
      {
        name = "matrix-synapse";
        ensureDBOwnership = true;
      }
    ];
    ensureDatabases = ["matrix-synapse"];
  };

  services.nginx = {
    enable = true;
    recommendedTlsSettings = true;
    recommendedOptimisation = true;
    recommendedGzipSettings = true;
    recommendedProxySettings = true;
    virtualHosts = {
      "wanderingcrow.net" = {
        forceSSL = lib.mkDefault true;
        useACMEHost = lib.mkDefault "wanderingcrow.net";
        locations = {
          "= /.well-known/matrix/server".extraConfig = mkWellKnown serverConfig;
          "= /.well-known/matrix/client".extraConfig = mkWellKnown clientConfig;
        };
      };
      "${fqdn}" = {
        forceSSL = true;
        useACMEHost = "${fqdn}";
        locations = {
          "/".extraConfig = ''return 404;'';
          "/_matrix".proxyPass = "http://localhost:8008";
          "/_synapse/client".proxyPass = "http://localhost:8008";
        };
      };
    };
  };

  services.matrix-synapse = {
    enable = true;
    settings = {
      server_name = "wanderingcrow.net";
      public_baseurl = baseUrl;
      listeners = [
        {
          port = 8008;
          bind_addresses = ["::1"];
          type = "http";
          tls = false;
          x_forwarded = true;
          resources = [
            {
              names = ["client" "federation"];
              compress = true;
            }
          ];
        }
      ];
      database = {
        name = "psycopg2";
        args = {
          user = "matrix-synapse";
          database = "matrix-synapse";
        };
      };
    };
  };
}