Policy Examples

Sample APEX Policy in TOSCA format

An example APEX policy in TOSCA format for the vCPE use case can be found here:

My First Policy

A good starting point is the My First Policy example. It describes a sales problem, to which policy can be applied. The example details the policy background, shows how to use the REST Editor to create a policy, and provides details for running the policies. The documentation can be found:


The domain Policy-controlled Video Streaming (PCVS) contains a policy for controlling video streams with different strategies. It also provides details for installing an actual testbed with off-the-shelve software (Mininet, Floodlight, Kafka, Zookeeper). The policy model here demonstrates virtually all APEX features: local context and policies controlling it, task selection logic and multiple tasks in a single state, AVRO schemas for context, AVOR schemas for events (trigger and local), and a CLI editor specification of the policy. The documentation can be found:

Decision Maker

The domain Decision Maker shows a very simple policy for decisions. Interesting here is that the it creates a Docker image to run the policy and that it uses the APEX REST applications to update the policy on the-fly. It also has local context to remember past decisions, and shows how to use that to no make the same decision twice in a row. The documentation can be found: