If you interrupt dlrn during mock build you might get an error

OSError: [Errno 16] Device or resource busy: '/var/lib/mock/dlrn-centos-x86_64/root/var/cache/yum'

Solution is to clear left-over bind mount as root:

# umount /var/lib/mock/dlrn-centos-x86_64/root/var/cache/yum

Other requirements

If the git clone operation fails for a package, DLRN will try to remove the source directory using sudo. Please make sure the user running DLRN can run rm -rf /path/to/dlrn/data/* without being asked for a password, otherwise DLRN will fail to process new commits.

API issues

If you want to quickly check the API status, you can use the /api/health endpoint. It will allow you to test API connectivity, database access and authentication:

# curl http://localhost:5000/api/health
# curl -d test=test --user user:password http://localhost:5000/api/health