action #62567
Updated by okurz almost 5 years ago
## Observation On a system where the network setup is not instantanious, e.g. NetworkManager+DHCP, when openQA systemd services are enabled to automatically startup, they can fail like ``` Jan 22 21:42:29 falafel openqa-scheduler[1282]: Can't create listen socket: Address family for hostname not supported at /usr/lib/perl5/vendor_perl/5.26.1/Mojo/IOLoop.pm line 124. Jan 22 21:42:29 falafel openqa-websockets[1283]: Can't create listen socket: Address family for hostname not supported at /usr/lib/perl5/vendor_perl/5.26.1/Mojo/IOLoop.pm line 124. Jan 22 21:42:31 falafel openqa-livehandler[1248]: Can't create listen socket: Address family for hostname not supported at /usr/lib/perl5/vendor_perl/5.26.1/Mojo/IOLoop.pm line 124. Jan 22 21:42:32 falafel.suse.cz openqa[1284]: Can't create listen socket: Address family for hostname not supported at /usr/lib/perl5/vendor_perl/5.26.1/Mojo/IOLoop.pm line 124. ``` ## Reproducible I think the issue is reproducible on any system, just with slow DHCP it is more likely to observe unless reproduced differently, e.g. on a system without any network ## Problem Currently the systemd services do not depend on the network being up, just the network controller stack initialized. *Expected result:* Programs should be designed to work regardless of a ready external network. ## Suggestions * Check startup of services in an environment where network is not up (yet), e.g. container with removed network * Ensure all our network related services start up fine regardless of network state ## Workaround As a workaround the systemd services can wait for the network being online as described on https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/ : ``` # systemctl cat openqa-scheduler # /usr/lib/systemd/system/openqa-scheduler.service [Unit] Description=The openQA Scheduler After=postgresql.service openqa-setup-db.service Wants=openqa-setup-db.service [Service] User=geekotest ExecStart=/usr/share/openqa/script/openqa-scheduler daemon -m production TimeoutStopSec=120 [Install] WantedBy=multi-user.target # /etc/systemd/system/openqa-scheduler.service.d/override.conf [Unit] After=network-online.target Wants=network-online.target ``` same is necessary in `/etc/systemd/system/openqa-livehandler.service.d/override.conf`