wsdd icon indicating copy to clipboard operation
wsdd copied to clipboard
verified publisher icon christgau

Make --chroot and --discovery work at the same time

Open tomangert opened this issue 2 months ago • 4 comments

The discovery thread had errors when running under chroot. Tested on Ubuntu/jammy/22.04 and Ubuntu/noble/24.04

tomangert avatar Oct 26 '25 19:10 tomangert

thread

Thread?!

had errors

Can you provide the error message(s) you encountered? I wonder why name resolution would be required, since the WSD protocol usually employs IP addresses for data exchange and not host names. I could imagine that urllib needs a resolver, but I'd like to figure that out.

christgau avatar Oct 27 '25 07:10 christgau 

sadie-24:~$ uname -a
Linux sadie-24 6.14.0-1014-azure #14~24.04.1-Ubuntu SMP Fri Oct  3 20:52:11 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
sadie-24:~$ wsdd -V
wsdd - Web Service Discovery Daemon, v0.7.1

sadie-24:~$ sudo systemctl start wsdd-server.service
sadie-24:~$ psg wsdd
 EUID EUSER        PID    PPID  C STIME   RSS    VSZ TT           TIME CMD
64757 wsdd        3822       1  1 13:54 30600  36828 ?        00:00:00 python3 /usr/bin/wsdd --shortlog --chroot=/run/wsdd --discovery --listen 2424 --ipv4only --interface eth0 --workgroup HOME
EUSER
sadie-24:~$ sudo netstat -antp|grep pyth
tcp        0      0 172.28.0.81:5357        0.0.0.0:*               LISTEN      3822/python3

Not listening on 2424 No errors in log until service is stopped. Then:

2025-10-27T13:56:36.705513-04:00 sadie-24 systemd[1]: Stopping wsdd-server.service - Web Services Dynamic Discovery host daemon...
2025-10-27T13:56:36.713646-04:00 sadie-24 wsdd[3822]: Traceback (most recent call last):
2025-10-27T13:56:36.713713-04:00 sadie-24 wsdd[3822]:   File "/usr/bin/wsdd", line 1965, in main
2025-10-27T13:56:36.713741-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 641, in run_forever
2025-10-27T13:56:36.713758-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1987, in _run_once
2025-10-27T13:56:36.713771-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/events.py", line 88, in _run
2025-10-27T13:56:36.713785-04:00 sadie-24 wsdd[3822]:   File "/usr/bin/wsdd", line 1736, in sigterm_handler
2025-10-27T13:56:36.713800-04:00 sadie-24 wsdd[3822]: SystemExit: 0
2025-10-27T13:56:36.713812-04:00 sadie-24 wsdd[3822]: During handling of the above exception, another exception occurred:
2025-10-27T13:56:36.713825-04:00 sadie-24 wsdd[3822]: Traceback (most recent call last):
2025-10-27T13:56:36.713867-04:00 sadie-24 wsdd[3822]:   File "/usr/bin/wsdd", line 1981, in <module>
2025-10-27T13:56:36.713891-04:00 sadie-24 wsdd[3822]:   File "/usr/bin/wsdd", line 1969, in main
2025-10-27T13:56:36.713938-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
2025-10-27T13:56:36.713954-04:00 sadie-24 wsdd[3822]:   File "/usr/bin/wsdd", line 1190, in cleanup
2025-10-27T13:56:36.713970-04:00 sadie-24 wsdd[3822]:   File "/usr/bin/wsdd", line 1117, in create_server
2025-10-27T13:56:36.713982-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/streams.py", line 84, in start_server
2025-10-27T13:56:36.713994-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1528, in create_server
2025-10-27T13:56:36.714007-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1460, in _create_server_getaddrinfo
2025-10-27T13:56:36.714019-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1456, in _ensure_resolved
2025-10-27T13:56:36.714062-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 901, in getaddrinfo
2025-10-27T13:56:36.714076-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 858, in run_in_executor
2025-10-27T13:56:36.714089-04:00 sadie-24 wsdd[3822]:   File "/usr/lib/python3.12/concurrent/futures/__init__.py", line 49, in __getattr__
2025-10-27T13:56:36.714101-04:00 sadie-24 wsdd[3822]: ModuleNotFoundError: **No module named 'concurrent.futures.thread'**
2025-10-27T13:56:36.728117-04:00 sadie-24 systemd[1]: wsdd-server.service: Main process exited, code=exited, status=1/FAILURE
2025-10-27T13:56:36.728213-04:00 sadie-24 systemd[1]: wsdd-server.service: Failed with result 'exit-code'.
2025-10-27T13:56:36.728395-04:00 sadie-24 systemd[1]: Stopped wsdd-server.service - Web Services Dynamic Discovery host daemon.

Add the import concurrent.futures.thread

2025-10-27T14:00:24.649491-04:00 sadie-24 systemd[1]: Stopping wsdd-server.service - Web Services Dynamic Discovery host daemon...
2025-10-27T14:00:24.650333-04:00 sadie-24 wsdd[3865]: Traceback (most recent call last):
2025-10-27T14:00:24.650409-04:00 sadie-24 wsdd[3865]:   File "/usr/bin/wsdd", line 1965, in main
2025-10-27T14:00:24.650454-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 641, in run_forever
2025-10-27T14:00:24.650484-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1987, in _run_once
2025-10-27T14:00:24.650538-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/events.py", line 88, in _run
2025-10-27T14:00:24.650567-04:00 sadie-24 wsdd[3865]:   File "/usr/bin/wsdd", line 1736, in sigterm_handler
2025-10-27T14:00:24.650588-04:00 sadie-24 wsdd[3865]: SystemExit: 0
2025-10-27T14:00:24.650612-04:00 sadie-24 wsdd[3865]: During handling of the above exception, another exception occurred:
2025-10-27T14:00:24.650651-04:00 sadie-24 wsdd[3865]: Traceback (most recent call last):
2025-10-27T14:00:24.650678-04:00 sadie-24 wsdd[3865]:   File "/usr/bin/wsdd", line 1981, in <module>
2025-10-27T14:00:24.650711-04:00 sadie-24 wsdd[3865]:   File "/usr/bin/wsdd", line 1969, in main
2025-10-27T14:00:24.650760-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 687, in run_until_complete
2025-10-27T14:00:24.650779-04:00 sadie-24 wsdd[3865]:   File "/usr/bin/wsdd", line 1190, in cleanup
2025-10-27T14:00:24.650826-04:00 sadie-24 wsdd[3865]:   File "/usr/bin/wsdd", line 1117, in create_server
2025-10-27T14:00:24.650847-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/streams.py", line 84, in start_server
2025-10-27T14:00:24.650863-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1528, in create_server
2025-10-27T14:00:24.650884-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1460, in _create_server_getaddrinfo
2025-10-27T14:00:24.650908-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 1456, in _ensure_resolved
2025-10-27T14:00:24.650920-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/asyncio/base_events.py", line 901, in getaddrinfo
2025-10-27T14:00:24.650931-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/concurrent/futures/thread.py", line 58, in run
2025-10-27T14:00:24.650947-04:00 sadie-24 wsdd[3865]:   File "/usr/lib/python3.12/socket.py", line 963, in getaddrinfo
2025-10-27T14:00:24.650960-04:00 sadie-24 wsdd[3865]: socket.gaierror: [Errno -3] **Temporary failure in name resolution**
2025-10-27T14:00:24.673671-04:00 sadie-24 systemd[1]: wsdd-server.service: Main process exited, code=exited, status=1/FAILURE
2025-10-27T14:00:24.673763-04:00 sadie-24 systemd[1]: wsdd-server.service: Failed with result 'exit-code'.
2025-10-27T14:00:24.673964-04:00 sadie-24 systemd[1]: Stopped wsdd-server.service - Web Services Dynamic Discovery host daemon.

Add the rest of the patch and it works.

tomangert avatar Oct 27 '25 18:10 tomangert

That example is with the ubuntu 24.04 apt version of wsdd. Same results with 0.8/0.9/latest.

tomangert avatar Oct 27 '25 18:10 tomangert

Thanks. I'll take a closer look as soon as time allows

christgau avatar Oct 27 '25 20:10 christgau