Managing System Updates With CFEngine
From Kyle's Wiki
One of the cornerstones of good sysadmin'ness is running regular updates. Specifically security updates.
Here is some CFEngine glue to make that happen.
packages: redhat:: yum-plugin-security action=install ubuntu:: unattended-upgrades action=install shellcommands: # Security updates every day at 10AM redhat.Hr10:: "/usr/bin/yum -d0 -e0 -y --security update" ubuntu.Hr10:: "/usr/bin/unattended-upgrades"