allow skynet to listen on specified IP addresses

[jmcclelland]

It would be convenient if we could pass an environment variable like HOST=1.2.3.4 to control what IP address skynet binds to.

It would require a small change to skynet/utils.py:

--- a/skynet/utils.py
+++ b/skynet/utils.py
@@ -1,3 +1,4 @@
+import os
 import uvicorn
 from fastapi import APIRouter, Depends, FastAPI
 from fastapi.middleware.cors import CORSMiddleware
@@ -34,9 +35,10 @@ def get_router() -> APIRouter:
 
 
 async def create_webserver(app, port):
+    host = os.environ.get('HOST', '0.0.0.0')
     server_config = uvicorn.Config(
         app,
-        host='0.0.0.0',
+        host=host,

[saghul]

No objection as long as the current default remains!

[rpurdel]

maybe define another variable as $HOST is kind of taken ;)

[saghul]

LISTEN_IP?

[jmcclelland]

Good point. LISTEN_IP works for me.

[quitrk]

It will be exposed as SKYNET_LISTEN_IP