1. A content delivery (CD) system comprising a plurality of devices, each device comprising hardware including memory and at least one processor, each device configured to run at least one CD service of a plurality of CD services; and wherein at least some of said CD services: produce event output relating to their respective operation, wherein at least some of said event output from at least some of said CD services is provided to at least some of said CD services as event input, obtain event input from one or more CD services, produce, as their respective state output, state information, said state information being based on said event input from said one or more CD services, maintain customer configuration information specifying a mapping of subscriber properties to CD services, obtain state information from said CD services, and modify said customer configuration information to produce modified customer configuration information based at least on said state information.