1. A method for managing policies for a set of computing resources, the method comprising: importing a plurality of sets of resource management policy rules from a plurality of heterogeneous sources; and storing each set of imported policy rules as a primitive policy, wherein the primitive policies are (i) applicable to resources in the set of computing resources and (ii) combinable into composite policies that are applicable to resources in the set of computing resources, wherein composite policies are combinable into additional composite policies with primitive policies and other composite policies.