Two nixpkgs derivations try binding same system port(s)

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1

Hi Nix-ers, I’ve encounter an issue I do not know if it’s just technical debt on my side or effectively a bug:

  • I’m using TT-RSS

  • I’ve added, to try it, Grocy

Both are locally served web-apps (PHP + webserver, plus postgres for TT-RSS, and SQLite for Grocy). If both are enabled both do not works. Maybe relevant configs excerpts:

tt-rss = {
  enable = true;

  database = {
    type = "pgsql";
    #...
  }; # database

  email = {
    #...
  }; # email

  virtualHost = "news.local";
  selfUrlPath = "http://192.168.100.1"; # local wireguard, if relevant
}; # tt-rss

postgresql = {
  #...
}; # postgresql

nginx = {
  enable = true;
  recommendedGzipSettings = true;
  recommendedOptimisation = true;
  recommendedProxySettings = true;
  recommendedTlsSettings = true;
}; # nginx

and

grocy = {
  enable = true;
  hostName = "grocy.local";
  nginx.enableSSL = false;
  dataDir = "/var/lib/grocy";

  settings = {
  #...
  }; # settings
}; # grocy

I suppose both try to spawn an nginx instance to listen on port 80 but both do not have an option to specify a custom port/a virtual host.

How can I proceed in general, I mean when some derivation of some web-apps run a webserver and have no way to specify it’s basic (or less basic) config on the same host/no virtualhost configs etc?

I fail to find useful docs on that subject unfortunately…

Thanks :slight_smile: