Wait longer for x11 socket file to be created. Ref #1761

gns3server/compute/docker/docker_vm.py

@@ -615,7 +615,10 @@ class DockerVM(BaseNode):
             raise DockerError("Please install TigerVNC server (recommended) or Xvfb + x11vnc before using VNC support")
         await self._start_vnc_process()
         x11_socket = os.path.join("/tmp/.X11-unix/", "X{}".format(self._display))
-        await wait_for_file_creation(x11_socket)
+        try:
+            await wait_for_file_creation(x11_socket)
+        except asyncio.TimeoutError:
+            raise DockerError('x11 socket file "{}" does not exist'.format(x11_socket))
 
         if not hasattr(sys, "_called_from_test") or not sys._called_from_test:
             # Start vncconfig for tigervnc clipboard support, connection available only after socket creation.

gns3server/utils/asyncio/__init__.py

@@ -126,7 +126,7 @@ def monitor_process(process, termination_callback):
     asyncio.ensure_future(_check_process(process, termination_callback))
 
 
-async def wait_for_file_creation(path, timeout=10):
+async def wait_for_file_creation(path, timeout=60):
 
     while timeout > 0:
         if os.path.exists(path):