move to gunicorn

I didn't manage to get the uwsgi python plugin to work. It complained
about unrecognized argument `--module`.

app/e11sync/settings.py

@@ -16,7 +16,7 @@ SECRET_KEY = 'django-insecure-$e2!=equ(efm0e%f9&t+xjtz0)$*$@pw%rnjdqcl8f@5o5hw!l
 
 DEBUG = _DEBUG
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = ["127.0.0.1"]
 
 INTERNAL_IPS = ["127.0.0.1"]
 

flake.nix

@@ -31,12 +31,7 @@
   }:
     flake-utils.lib.eachDefaultSystem (system: let
       pkgs = import nixpkgs {inherit system;};
-      uwsgiPort = 8001;
-
-      uwsgi = pkgs.uwsgi.override {
-        plugins = ["python3"];
-        python3 = pkgs.python3;
-      };
+      gunicornPort = 8001;
 
       appDeps = with pkgs; [
         python3Packages.django_5
@@ -80,8 +75,8 @@
                   "${pkgs.zopfli}/bin/zopfli {} && ${pkgs.brotli}/bin/brotli {}"
         '';
       };
-      packages.e11sync-uwsgi = pkgs.stdenv.mkDerivation {
-        name = "e11sync-uwsgi";
+      packages.e11sync-gunicorn = pkgs.stdenv.mkDerivation {
+        name = "e11sync-gunicorn";
         propagatedBuildInputs = [runtimeDeps];
         nativeBuildInputs = [pkgs.makeWrapper];
         src = self;
@@ -89,16 +84,13 @@
         buildPhase = ''
             mkdir -p $out;
             cp -r ${self}/app $out
-            makeWrapper ${uwsgi}/bin/uwsgi $out/bin/entrypoint-uwsgi \
-              --add-flags '\
-                --chdir='"$out"'/app \
-                --module=e11sync.wsgi:application \
-                --master \
-                --http-socket=127.0.0.1:${toString uwsgiPort} \
-                --processes=5 \
-                --harakiri=20 \
-                --max-requests=10000 \
-                --vacuum'
+            makeWrapper ${pkgs.python3Packages.gunicorn}/bin/gunicorn $out/bin/entrypoint \
+              --chdir $out/app \
+              --set E11SYNC_DEBUG "" \
+              --set E11SYNC_COMPRESS_OFFLINE 1 \
+              --set GEOIP_PATH "${geoip}" \
+              --add-flags e11sync.wsgi \
+              --add-flags --bind=127.0.0.1:${toString gunicornPort}
           '';
       };