[Unit]
Description=Monthly refresh of the Thermograph IP-geolocation database

[Timer]
# Both candidate databases publish monthly. Weekly rather than monthly on
# purpose: the script exits 0 without touching anything when the file is already
# current, so the extra runs cost one HEAD request, and they mean a missed or
# failed monthly run self-heals within a week instead of leaving the data a
# month stale. (MaxMind additionally *requires* deleting a superseded copy
# within 30 days, which a strictly-monthly timer would sit right on the edge of.)
OnCalendar=Mon 04:17 UTC
# Don't have every host in the fleet hit the mirror at the same second.
RandomizedDelaySec=2h
# Catch up after a reboot that spanned the scheduled time.
Persistent=true

[Install]
WantedBy=timers.target