[Unit]
Description=Nightly WordPress maintenance (Bash WP-CLI Update)
Documentation=file:/opt/wp-cli-update/README.md

[Timer]
# 03:20 local time, with a randomised delay so that several hosts do not start at
# the same second and saturate one database server.
OnCalendar=*-*-* 03:20:00
RandomizedDelaySec=15m
# If the host was off at 03:20, run once soon after boot instead of skipping a week.
Persistent=true
Unit=wp-cli-update.service

[Install]
WantedBy=timers.target