replace gunicorn with uwsgi

has an easier-to-work-with prometheus.

pkgs/e11sync-frontend.nix

@@ -1,10 +1,10 @@
 {
   writeTextFile,
   e11sync-static,
-  gunicornPort ? 8002,
+  backendPort ? 8002,
 }:
 writeTextFile {
-  name = "e11sync-caddy";
+  name = "e11sync-frontend";
   text = ''
     header Strict-Transport-Security "max-age=31536000"
     header /static/CACHE/* Cache-Control "public, max-age=31536000, immutable"
@@ -17,6 +17,6 @@ writeTextFile {
       }
     }
 
-    reverse_proxy http://127.0.0.1:${toString gunicornPort}
+    reverse_proxy http://127.0.0.1:${toString backendPort}
   '';
 }

pkgs/e11sync.nix

@@ -6,7 +6,8 @@
   python3Packages,
   libmaxminddb,
   dart-sass,
-  gunicornPort ? 8002,
+  uwsgi,
+  backendPort ? 8002,
   database-path ? null,
   geoip-mmdb,
 }:
@@ -24,20 +25,22 @@ stdenv.mkDerivation {
   buildPhase = ''mkdir -p $out'';
   installPhase = ''
     cp -r . $out/app
-    makeWrapper ${python3Packages.gunicorn}/bin/gunicorn $out/bin/e11sync-gunicorn \
+    makeWrapper $out/app/manage.py $out/bin/e11sync \
+      --set GEOIP_PATH "${geoip-mmdb}"
+
+    makeWrapper ${uwsgi}/bin/uwsgi $out/bin/e11sync-backend \
       --chdir $out/app \
-      --set-default E11SYNC_HTTP_PORT ${toString gunicornPort} \
+      --set-default E11SYNC_HTTP_PORT ${toString backendPort} \
+      --add-flags "--plugin ${uwsgi}/lib/uwsgi/python3_plugin.so" \
+      --add-flags "--http-socket 127.0.0.1:${toString backendPort}" \
+      --add-flags "--wsgi-file e11sync/wsgi.py" \
+      --add-flags --master \
       ${lib.optionalString (database-path != null) ''
       --set E11SYNC_DATABASE_PATH "${database-path}" \
     ''} \
       --set E11SYNC_DEBUG "" \
       --set E11SYNC_COMPRESS_OFFLINE 1 \
       --set GEOIP_PATH "${geoip-mmdb}" \
-      --add-flags --bind=127.0.0.1:\$E11SYNC_HTTP_PORT \
-      --add-flags e11sync.wsgi
-
-    makeWrapper $out/app/manage.py $out/bin/e11sync \
-      --set GEOIP_PATH "${geoip-mmdb}"
   '';
   passthru.tests.unit =
     runCommand "e11sync-test" {