Crashing netunnel when there is a really bad exception, so it would r…

…estart

.gitignore

@@ -132,4 +132,6 @@ venv.bak/
 dmypy.json
 
 # Pyre type checker
-.pyre/
+.pyre/
+
+.DS_Store

netunnel/server/static_tunnel.py

@@ -5,6 +5,7 @@
 
 import time
 import aiohttp
+import sys
 import logging
 import asyncio
 import contextlib
@@ -155,9 +156,7 @@ async def _tunnel_keep_alive(self):
                     self._logger.warning('Failed to authenticate with `%s`', self._client.server_url)
                 else:
                     self._logger.exception('Failed to establish a tunnel with the peer `%s`:', self._client.server_url)
-                self._logger.info('Waiting %s seconds before retrying...', self._connection_retry_interval)
-                await asyncio.sleep(self._connection_retry_interval)
-
+                sys.exit(1)
 
     async def stop(self, force=True):
         """