Rudder

The metadata in Techniques enables the definition of the following elements:

• A list of compatible agent technology and version (like cfengine-community >= 3.1.2 | cfengine-nova >= 2.0.1)
• A list of compatible OSes (like debian-5 | centos-4 | windows-server-2003 | windows-server-2008 | windows-xp)

The Rudder application will be able to correlate the compatibility and what is actually on the node so incompatible Techniques will not be applied on them.

This verification will be done when a Directive is added to a Rule: if member nodes of the selected groups are not compatible with the base Technique, a warning popup will be displayed and will say "Warning: some of the target servers for this configuration rule are not compatible with the Policy Template in use", and a list of the incompatible nodes with details (what is incompatible)