self-hosting/profiles/backend.nix

{ config, lib, pkgs, ... }:
{
  imports = [
    ../environment.nix
    ../hardware/hcloud.nix
    ../modules/openssh.nix
    ../modules/nginx.nix
    ../modules/murmur.nix
    ../modules/synapse.nix
    ../modules/nextcloud.nix
    ../modules/custom-backup-job.nix
    ../modules/custom-monit.nix
    ../modules/dokuwiki.nix
    ../modules/website-marie.nix
    ../modules/roundcube.nix
    ../modules/monitoring-exporters.nix
  ];

  sops.secrets = {
    borgSshKey = {
      owner = config.services.borgbackup.jobs.data.user;
      key = "borg/client_keys/backend1/private";
    };
  };

  services.custom-backup-job = {
    additionalPaths = [ "/var/lib/nextcloud/config" ];
    readWritePaths = [ "/nix/var/data/murmur" "/nix/var/data/backup/" ];
    preHook = ''
      cp /var/lib/murmur/murmur.sqlite /nix/var/data/murmur/murmur.sqlite
    '';
    postHook = ''
      touch /nix/var/data/backup/backup-ok
    '';
    startAt = "03:30";
    sshKey = config.sops.secrets.borgSshKey.path;
  };

  services.custom-monit.additionalConfig = ''
    check file nextcloud-data-mounted with path /var/lib/nextcloud/data/index.html
      start = "${pkgs.systemd}/bin/systemctl start nextcloud-data-sshfs.service"

    check host jellyfin with address jellyfin.banditlair.com
      if failed port 443 protocol https with timeout 20 seconds then alert
    check host stb with address www.societe-de-tir-bertrix.com
      if failed port 443 protocol https with timeout 20 seconds then alert

    check host transmission with address transmission.banditlair.com
      if failed
          port 443
          protocol https
          status = 401
          with timeout 20 seconds
      then alert
  '';

  networking.interfaces.enp1s0 = {
    useDHCP = true;
    ipv4 = {
      addresses = [
        {
          address = "95.216.177.3";
          prefixLength = 32;
        }
      ];
    };
  };

  networking.firewall.allowedTCPPorts = [ 80 443 64738 ];
  networking.firewall.allowedUDPPorts = [ 64738 ];
  networking.firewall.interfaces."enp7s0".allowedTCPPorts = [ config.services.prometheus.exporters.node.port ];

}