XNAT application logs swallowed?

[andrewbrock-sahmri]

The current packer file has:

"sed -i 's/ch.qos.logback.core.rolling.RollingFileAppender/ch.qos.logback.core.ConsoleAppender/' $${CATALINA_HOME}/webapps/ROOT/WEB-INF/classes/logback.xml",

...which seems to swallow the underlying logs that would otherwise get written as when I run docker logs <CONTAINER> all I can see are the Tomcat logs, not the XNAT ones. Removing this line puts the logs in the logs directory in the XNAT home directory, which I think is a bit nicer (but i'm only running this as a docker image, not in k8s, so there might be something I'm missing here).

Happy to send a PR if you agree.

[vs49688]

IIRC, that was meant to run over XNAT's logback.xml, forcing it to dump logs to stdout

[andrewbrock-sahmri]

Ok, so to follow the pattern of not logging to file and logging everything to console, we might need to stop tomcat from logging to file and console?

root@xnat:/var/lib/docker/containers/8caa427efac301c45fd76c5b55ead4200ee814de4829558c221022b94f05d086# docker exec musing_torvalds ls -ahl logs/
total 28K
drwxrwxrwx 1 root root 4.0K Jul  5 04:24 .
drwxr-xr-x 1 root root 4.0K May 13 18:42 ..
-rw-r----- 1 root root 5.6K Jul  5 04:25 catalina.2021-07-05.log
-rw-r----- 1 root root    0 Jul  5 04:24 host-manager.2021-07-05.log
-rw-r----- 1 root root  410 Jul  5 04:25 localhost.2021-07-05.log
-rw-r----- 1 root root  380 Jul  5 04:26 localhost_access_log.2021-07-05.txt
-rw-r----- 1 root root    0 Jul  5 04:24 manager.2021-07-05.log

(not a super high priority though I guess)

[vs49688]

Yeah. I might just nuke logback.xml entirely and write a custom one. This'd fix also fix handling of plugin log files, killing two stones with one bird.