add a flag to skip SIGINT and SIGTERM signals registration

sanic/sanic.py

@@ -239,7 +239,7 @@ class Sanic:
 
     def run(self, host="127.0.0.1", port=8000, debug=False, before_start=None,
             after_start=None, before_stop=None, after_stop=None, sock=None,
-            workers=1, loop=None):
+            workers=1, loop=None, register_sys_signals=True):
         """
         Runs the HTTP Server and listens until keyboard interrupt or term
         signal. On termination, drains connections before closing.
@@ -273,7 +273,8 @@ class Sanic:
             'error_handler': self.error_handler,
             'request_timeout': self.config.REQUEST_TIMEOUT,
             'request_max_size': self.config.REQUEST_MAX_SIZE,
-            'loop': loop
+            'loop': loop,
+            'register_sys_signals': register_sys_signals
         }
 
         # -------------------------------------------- #

sanic/server.py

@@ -226,7 +226,8 @@ def trigger_events(events, loop):
 def serve(host, port, request_handler, error_handler, before_start=None,
           after_start=None, before_stop=None, after_stop=None,
           debug=False, request_timeout=60, sock=None,
-          request_max_size=None, reuse_port=False, loop=None):
+          request_max_size=None, reuse_port=False, loop=None,
+          register_sys_signals=True):
     """
     Starts asynchronous HTTP Server on an individual process.
     :param host: Address to host on
@@ -286,8 +287,9 @@ def serve(host, port, request_handler, error_handler, before_start=None,
     trigger_events(after_start, loop)
 
     # Register signals for graceful termination
-    for _signal in (SIGINT, SIGTERM):
-        loop.add_signal_handler(_signal, loop.stop)
+    if register_sys_signals:
+        for _signal in (SIGINT, SIGTERM):
+            loop.add_signal_handler(_signal, loop.stop)
 
     try:
         loop.run_forever()