log to systemd journal

[vcalv]

Instead of logging to a hard-coded path /var/log/nvx.log use the system's logging facilities via journald

python-systemd already has a handler.

import logging
from systemd import journal
logger = logging.getLogger('custom_logger_name')
logger.addHandler(journal.JournalHandler(SYSLOG_IDENTIFIER='custom_unit_name'))
logger.warning("Some message: %s", 'detail')