cluster/containers/heisenbridge.nix

{ nglib, nixpkgs }:
nglib.makeSystem {
  system = "x86_64-linux";
  name = "heisenbridge";
  inherit nixpkgs;
  config = ({ pkgs, ... }:
    {
      dumb-init = {
        enable = true;
        type.services = { };
      };

      init.services.heisenbridge = {
        enabled = true;
        # heisenbridge needs to retry the connection and task restarting does not work currently
        shutdownOnExit = false;
        script =
          let
            config =
              ''
                -l 127.0.0.1 \
                -p 9898 \
                -o @magic_rb:matrix.redalder.org \
              '';
            homeserverURI = "https://matrix.redalder.org/";
          in
          pkgs.writeShellScript "heisenbridge"
            ''
              REGISTRATION_FILE="/var/lib/registrations/heisenbridge.yaml"

              [ -e "$REGISTRATION_FILE" ] || \
                ${pkgs.heisenbridge}/bin/heisenbridge '${homeserverURI}' \
                  -c "$REGISTRATION_FILE" \
                  ${config} \
                  --generate
              ${pkgs.heisenbridge}/bin/heisenbridge '${homeserverURI}' \
                  -c "$REGISTRATION_FILE" \
                  ${config}
            '';
      };
    });
}