# do daily/weekly/monthly maintenance
# min   hour    day     month   weekday command
*/15    *       *       *       *       run-parts /etc/periodic/15min
0       *       *       *       *       run-parts /etc/periodic/hourly
0       2       *       *       *       run-parts /etc/periodic/daily
0       3       *       *       6       run-parts /etc/periodic/weekly
0       5       1       *       *       run-parts /etc/periodic/monthly

# disable swap
@reboot swapoff -a

{% if ansible_virtualization_type == 'kvm' %}
# flush caches every 2 hours
0       */2     *       *       *       echo 3 > /proc/sys/vm/drop_caches
{% endif %}

# update packages on sunday between 3:15-3:30 am
15      3       *       *       0       sleep $(($RANDOM % 900)) && apk -U upgrade >/dev/null 2>&1 && apk clean cache && reboot -d 60