So doing some more digging it looks like the mailman-core is not listing on 8024 docker logs mailman-core shows
srv: AsyncServer = self.loop.run_until_complete(srv_coro)File "/usr/lib/python3.8/asyncio/base_events.py", line 616, in run_until_complete return future.result() File "/usr/lib/python3.8/asyncio/base_events.py", line 1463, in create_server raise OSError(err.errno, 'error while attempting ' OSError: [Errno 99] error while attempting to bind on address ('::1', 8024, 0, 0): address not available [root@bmimailmandr1 docker-mailman]# netstat | grep 1024
I also see nothing on port 8024 on the docker host (just incase that causes a conflict)
if I get into the mailman-core image I so not see anything listing on port 8024
bash-5.0# netstat -l
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 mailman-core:8001 0.0.0.0:* LISTEN
tcp 0 0 127.0.0.11:34093 0.0.0.0:* LISTEN
udp 0 0 127.0.0.11:59940 0.0.0.0:*
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node Path
bash-5.0#