config/profiles/http/services/plex.nix

{ config, pkgs, lib, inputs, mkDomain, ... }:
{
  # Plex

  # TODO: https://www.tinymediamanager.org/

  /** /
  disabledModules = [ "services/misc/plex.nix" ];
  #imports = [<nixos-unstable/nixos/modules/services/misc/plex.nix> ];
  imports = [ "${inputs.unstable}/nixos/modules/services/misc/plex.nix" ];
  services.plex.package = pkgs.unstable.plex;
  /**/

  services.plex = {
    enable = true;
    #dataDir = "/var/lib/plex";

    #=> allowedTCPPorts = [
    #  32400 # http webui
    #  3005  #
    #  8324  # controlling Plex for Roku via Plex Companion
    #  32469 # DLNA server
    #];
    #=> allowedUDPPorts = [
    #  1900 # access to the Plex DLNA Server
    #  5353 # older Bonjour/Avahi network discovery
    #  32410 32412 32413 32414 # GDM network discovery
    #];
    openFirewall = false; # we reverse-proxy instead, but it is needed for first-time setup. Navigate to "http://ip:32400/web"
  };

  /** /
  networking.firewall = lib.mkIf config.services.plex.enable {
  };
  /**/

  services.nginx.virtualHosts.${mkDomain "plex"} = lib.mkIf config.services.plex.enable {
    forceSSL = true; # addSSL = true;
    enableACME = true; #useACMEHost = acmeDomain;
    http2 = true;
    locations."/" = {
      proxyPass = "http://127.0.0.1:32400"; # TODO: make configurable
      proxyWebsockets = true;
    };
    # from https://nixos.wiki/wiki/Plex
    extraConfig = ''
      #Some players don't reopen a socket and playback stops totally instead of resuming after an extended pause
      send_timeout 100m;

      # Why this is important: https://blog.cloudflare.com/ocsp-stapling-how-cloudflare-just-made-ssl-30/
      ssl_stapling on;
      ssl_stapling_verify on;

      ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
      ssl_prefer_server_ciphers on;
      #Intentionally not hardened for security for player support and encryption video streams has a lot of overhead with something like AES-256-GCM-SHA384.
      ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';

      # Forward real ip and host to Plex
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_set_header Host $server_addr;
      proxy_set_header Referer $server_addr;
      proxy_set_header Origin $server_addr;

      # Plex has A LOT of javascript, xml and html. This helps a lot, but if it causes playback issues with devices turn it off.
      #gzip on;
      #gzip_vary on;
      #gzip_min_length 1000;
      #gzip_proxied any;
      #gzip_types text/plain text/css text/xml application/xml text/javascript application/x-javascript image/svg+xml;
      #gzip_disable "MSIE [1-6]\.";

      # Nginx default client_max_body_size is 1MB, which breaks Camera Upload feature from the phones.
      # Increasing the limit fixes the issue. Anyhow, if 4K videos are expected to be uploaded, the size might need to be increased even more
      client_max_body_size 100M;

      # Plex headers
      proxy_set_header X-Plex-Client-Identifier $http_x_plex_client_identifier;
      proxy_set_header X-Plex-Device $http_x_plex_device;
      proxy_set_header X-Plex-Device-Name $http_x_plex_device_name;
      proxy_set_header X-Plex-Platform $http_x_plex_platform;
      proxy_set_header X-Plex-Platform-Version $http_x_plex_platform_version;
      proxy_set_header X-Plex-Product $http_x_plex_product;
      proxy_set_header X-Plex-Token $http_x_plex_token;
      proxy_set_header X-Plex-Version $http_x_plex_version;
      proxy_set_header X-Plex-Nocache $http_x_plex_nocache;
      proxy_set_header X-Plex-Provides $http_x_plex_provides;
      proxy_set_header X-Plex-Device-Vendor $http_x_plex_device_vendor;
      proxy_set_header X-Plex-Model $http_x_plex_model;

      # Websockets
      #proxy_http_version 1.1;
      #proxy_set_header Upgrade $http_upgrade;
      #proxy_set_header Connection "upgrade";

      # Buffering off send to the client as soon as the data is received from Plex.
      proxy_redirect off;
      proxy_buffering off;
    '';
  };

  # Allow plex access to VAAPI (based on jellyfin)
  users.users.${config.services.plex.user}.extraGroups = [ "video" "render" ];
  systemd.services.plex.serviceConfig.PrivateDevices = lib.mkForce false;
  systemd.services.plex.serviceConfig.DeviceAllow = lib.mkForce [ "/dev/dri/renderD128" ];

  systemd.services.plex.serviceConfig.TimeoutStartSec = "5m";

  # restart plex weekly (needed to remain remotely available?!?!)
  systemd.timers.restart-plex = {
    wantedBy = [ "timers.target" ];
    timerConfig.OnCalendar = "weekly";
    timerConfig.Unit = "restart-plex.service";
  };
  systemd.services.restart-plex = {
    serviceConfig.Type = "oneshot";
    serviceConfig.ExecStart = "systemctl restart plex.socket";
  };

}