nixos/hosts/architect/plex.nix

{ pkgs, config, ... }:

let
  domain = "media.giugl.io";
  port = 32400;
in
{
  architect.firewall = {
    openTCP = [ 32400 3005 8324 32469 ];
    openUDP = [ 1900 5353 32410 32412 32413 32414 ];
  };

  services.plex = {
    enable = true;
    package = pkgs.unstablePkgs.plex;
    dataDir = "/plex";
  };

  architect.vhost.${domain} = with config.architect.networks; {
    dnsInterfaces = [ "lan" "tailscale" ];
    locations = {
      "/" = {
        inherit port;

        proxyWebsockets = true;
        allowLan = true;        
        allow = [
          tailscale.net
        ];
        extraConfig = ''
          #Some players don't reopen a socket and playback stops totally instead of resuming after an extended pause
            send_timeout 100m;

          # 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;

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

            add_header 'Content-Security-Policy' 'upgrade-insecure-requests';
        '';
      };
    };
  };

  users.groups.media.members = [ "plex" ];
}