os/hosts/0001/gitea.nix

{
  config,
  lib,
  pkgs,
  self,
  ...
}: let
  hostAddress = "10.10.42.1";
  serviceAddress = "10.10.42.3";

  hostname = "git.momo.koeln";

  dbUserName = "gitea";

  hostStateDir = "/mnt/internal/gitea";
  containerStateDir = "/var/lib/gitea";
in {
  age.secrets.gitea-database-password = {
    file = "${self}/secrets/gitea-database-password.age";
    mode = "600";
    owner = "gitea";
  };

  age.secrets.gitea-mailer-password = {
    file = "${self}/secrets/gitea-mailer-password.age";
    mode = "600";
    owner = "gitea";
  };

  services.caddy.virtualHosts.${hostname} = {
    logFormat = lib.mkForce ''
      output discard
    '';
    extraConfig = ''
      redir /user/login /user/oauth2/${config.containers.keycloak.config.services.keycloak.settings.hostname} temporary
      reverse_proxy ${serviceAddress}:8080
    '';
  };

  containers."gitea" = {
    privateNetwork = true;
    hostAddress = hostAddress;
    localAddress = serviceAddress;

    bindMounts."${containerStateDir}" = {
      hostPath = hostStateDir;
      isReadOnly = false;
    };

    bindMounts."${config.age.secrets.gitea-database-password.path}" = {
      hostPath = config.age.secrets.gitea-database-password.path;
      isReadOnly = true;
    };

    bindMounts."${config.age.secrets.gitea-mailer-password.path}" = {
      hostPath = config.age.secrets.gitea-mailer-password.path;
      isReadOnly = true;
    };

    config = {
      config,
      pkgs,
      ...
    }: {
      # gitea
      services.gitea = {
        enable = true;
        appName = "pub.solar git server";
        database = {
          type = "postgres";
          passwordFile = config.age.secrets.gitea-database-password.path;
        };
        domain = domain;
        httpAddress = "0.0.0.0";
        httpPort = 3000;
        lfs.enable = true;
        mailerPasswordFile = config.pub-solar.infra-node.mailing.passwordFile;
        rootUrl = "https://git.pub.solar";
        settings = {
          mailer = mkIf config.pub-solar.infra-node.mailing.enabled {
            ENABLED = true;
            MAILER_TYPE = config.pub-solar.infra-node.mailing.type;
            HOST = config.pub-solar.infra-node.mailing.host;
            FROM = config.pub-solar.infra-node.mailing.from;
            USER = config.pub-solar.infra-node.mailing.user;
          };
          # currently broken, gpg core dumps
          #"repository.signing" = {
          #  SIGNING_KEY = "default";
          #  MERGES = "always";
          #};
          openid = {
            ENABLE_OPENID_SIGNIN = true;
            ENABLE_OPENID_SIGNUP = true;
          };
          # uncomment after initial deployment, first user is admin user
          # required to setup SSO (oauth openid-connect, keycloak auth provider)
          service.ALLOW_ONLY_EXTERNAL_REGISTRATION = true;
          session.COOKIE_SECURE = lib.mkForce true;
        };
      };

      # Required for gitea server side gpg signatures
      # configured / setup manually in
      # /var/lib/gitea/data/home/.gitconfig and
      # /var/lib/gitea/data/home/.gnupg/
      programs.gnupg.agent = {
        enable = true;
        pinentryFlavor = "curses";
      };
      # Required to make gpg work without a graphical environment?
      # otherwise generating a new gpg key fails with this error:
      # gpg: agent_genkey failed: No pinentry
      # see: https://github.com/NixOS/nixpkgs/issues/97861#issuecomment-827951675
      environment.variables = {
        GPG_TTY = "$(tty)";
      };
    };
  };
}