switch to gunicorn

Dockerfile

@@ -3,10 +3,10 @@ FROM debian:buster-slim
 RUN apt-get update && apt-get install -y \
     python3-requests \
     python3-flask \
-    python3-twisted \
+    gunicorn3 \
     && rm -rf /var/lib/apt/lists/*
 
 COPY . /app
 WORKDIR /app
-ENTRYPOINT ["python3", "main.py", "-p", "80"]
+ENTRYPOINT ["gunicorn3", "-w1", "-b0.0.0.0:80", "main:app"]
 EXPOSE 80

main.py

@@ -1222,9 +1222,10 @@ def update_thread() -> None:
         time.sleep(UPDATE_INTERVAL)
 
 
-thread = threading.Thread(target=update_thread)
-thread.daemon = True
-thread.start()
+def start_update_thread():
+    thread = threading.Thread(target=update_thread)
+    thread.daemon = True
+    thread.start()
 
 
 class SrcInfoPackage(object):
@@ -1302,15 +1303,11 @@ app = Flask(__name__)
 app.register_blueprint(packages)
 app.jinja_env.undefined = StrictUndefined
 
+start_update_thread()
 
 def main(argv: List[str]) -> Any:
     global CACHE_LOCAL
 
-    from twisted.internet import reactor
-    from twisted.web.server import Site
-    from twisted.web.wsgi import WSGIResource
-    from twisted.python import log
-
     parser = argparse.ArgumentParser()
     parser.add_argument("-c", "--cache", action="store_true",
                         help="use local repo cache")
@@ -1321,15 +1318,8 @@ def main(argv: List[str]) -> Any:
 
     CACHE_LOCAL = args.cache
     print("http://localhost:%d" % args.port)
+    app.run(port=args.port, debug=args.debug)
 
-    if args.debug:
-        app.debug = True
-        log.startLogging(sys.stdout)
-
-    wsgiResource = WSGIResource(reactor, reactor.getThreadPool(), app)
-    site = Site(wsgiResource)
-    reactor.listenTCP(args.port, site)
-    reactor.run()
 
 
 if __name__ == "__main__":