Return exit status 1 if server fails to start. Fixes #1744

gns3server/run.py

@@ -259,8 +259,9 @@ def run():
     port = int(server_config["port"])
 
     server = WebServer.instance(host, port)
+    status = 0
     try:
-        server.run()
+        status = server.run()
     except OSError as e:
         # This is to ignore OSError: [WinError 0] The operation completed successfully exception on Windows.
         if not sys.platform.startswith("win") and not e.winerror == 0:
@@ -269,7 +270,7 @@ def run():
         log.critical("Critical error while running the server: {}".format(e), exc_info=1)
         CrashReport.instance().capture_exception()
         return
-
+    finally:
         if args.pid:
             log.info("Remove PID file %s", args.pid)
             try:

gns3server/web/web_server.py

@@ -296,7 +296,7 @@ class WebServer:
         self._handler = self._app.make_handler()
         if self._run_application(self._handler, ssl_context) is False:
             self._loop.stop()
-            return
+            sys.exit(1)
 
         self._signal_handling()
         self._exit_handling()
@@ -317,3 +317,4 @@ class WebServer:
                     self._loop.run_until_complete(self.shutdown_server())
                 except asyncio.CancelledError:
                     pass
+