Added the ability to change addresses.

test/test_single_boot.py

@@ -4,6 +4,7 @@ import aiohttp
 
 from asyncio import create_subprocess_exec
 from pathlib import Path
+from socket import gethostbyname, gethostname
 from unittest import IsolatedAsyncioTestCase
 
 
@@ -55,3 +56,11 @@ class SingleBootTC(IsolatedAsyncioTestCase):
         async with aiohttp.ClientSession() as session:
             async with session.get(f"http://localhost:{port}") as response:
                 self.assertEqual(response.status, 200)
+
+    async def test_alt_address_boot(self):
+        """Can it boot off an alternate address?"""
+        addr = gethostbyname(gethostname())
+        await self.servers.create_server("-a", addr)
+        async with aiohttp.ClientSession() as session:
+            async with session.get(f"http://{addr}:3000") as response:
+                self.assertEqual(response.status, 200)