Rule Conditions

The <Condition> element of a rule contains a Boolean operator that specifies how the individual conditions relate to each other, and, for example, is similar to the <condition> task in Ant.

Each operator can implement an operation against operands. For example, attribute hosted_on has a value ending with .europe.example.com (attribute hosted_on and .europe.example.com are operands) or an operation against one or a set of other nested operators like <And>, <Or> or <Not>.