add sdnotify dependency

debian/control

@@ -9,7 +9,11 @@ Homepage: https://forge.cadoles.com/Infra/risotto
 Package: python3-risotto
 Architecture: any
 Pre-Depends: dpkg, python3, ${misc:Pre-Depends}
-Depends: ${python:Depends}, ${misc:Depends}, python3-asyncpg, python3-rougail, python3-aiohttp
+Depends: ${python:Depends}, ${misc:Depends},
+	python3-asyncpg,
+	python3-rougail,
+	python3-aiohttp,
+	python3-sdnotify
 Description: configuration manager libraries
 
 Package: risotto

script/risotto-server

@@ -1,13 +1,16 @@
 #!/usr/bin/env python3
+from sdnotify import SystemdNotifier
 from asyncio import get_event_loop
 from risotto import get_app
 
 
 if __name__ == '__main__':
+    notifier = SystemdNotifier()
     loop = get_event_loop()
     loop.run_until_complete(get_app(loop))
+    print('HTTP server ready')
+    notifier.notify("READY=1")
     try:
-        print('HTTP server ready')
         loop.run_forever()
     except KeyboardInterrupt:
         pass

src/risotto/http.py

@@ -174,7 +174,10 @@ async def get_app(loop):
     await dispatcher.register_remote()
     print()
     await dispatcher.on_join()
-    return await loop.create_server(app.make_handler(), '*', get_config()['http_server']['port'])
+    return await loop.create_server(app.make_handler(),
+                                    '*',
+                                    get_config()['http_server']['port'],
+                                    )
 
 
 TIRAMISU = None