Configure socket settings through command line

bot.py

@@ -14,8 +14,6 @@ import yaml
 
 @dataclasses.dataclass
 class Config:
-    listen_addr: str
-    listen_port: int
     matrix_homeserver: str
     matrix_user: str
     matrix_password: str
@@ -118,7 +116,7 @@ async def send_notices(config, src):
         )
 
 
-async def run_app(config, dest):
+async def run_app(config, dest, host, port):
     async def webhook(request):
         tokens = request.query.getall("token", [])
         if config.webhook_token not in tokens:
@@ -132,9 +130,7 @@ async def run_app(config, dest):
 
     runner = aiohttp.web.AppRunner(app)
     await runner.setup()
-    await aiohttp.web.TCPSite(
-        runner, config.listen_addr, config.listen_port
-    ).start()
+    await aiohttp.web.TCPSite(runner, host, port).start()
 
 
 async def main():
@@ -142,11 +138,13 @@ async def main():
     logging.basicConfig(level=logging.INFO)
 
     parser = argparse.ArgumentParser()
-    parser.add_argument("-c", "--config-file", default="config.yaml")
+    parser.add_argument("-c", "--config", default="config.yaml")
+    parser.add_argument("--host", default="0.0.0.0")
+    parser.add_argument("--port", type=int, default=8000)
 
     args = parser.parse_args()
 
-    with open(args.config_file) as f:
+    with open(args.config) as f:
         config = yaml.safe_load(f)
 
     config = Config(**config)
@@ -154,10 +152,10 @@ async def main():
     events = asyncio.Queue()
     formatted = asyncio.Queue()
 
-    logging.info("Started Kanbot")
+    logging.info("Started Kanbot on %s:%d", args.host, args.port)
 
     tasks = (
-        asyncio.create_task(run_app(config, events)),
+        asyncio.create_task(run_app(config, events, args.host, args.port)),
         asyncio.create_task(format_events(config, events, formatted)),
         asyncio.create_task(send_notices(config, formatted)),
     )

config.yaml.example

@@ -1,6 +1,4 @@
 ---
-listen_addr: 0.0.0.0
-listen_port: 8000
 matrix_homeserver: https://matrix.org
 matrix_user: "@mykanbot:matrix.org"
 matrix_password: "CHANGE_ME"