CDS and Policy aka APEX Integration

Follow up from the ONS F2F Session the team agreed to work together to support the integration of Policy and CDS

Purpose:

Enable Closed Loop using CDS component.

Participants:

@Yuriy Malakov @Liam Fallon @Alexis de Talhouët @Oskar Malm @Brinda Santh Muthuramalingam @Magnus Buhrgard (Unlicensed) @Rashmi Pujar @Michela Bevilacqua @Marc-Alexandre Choquette

What needs to be done:

1. DCAE - Finalize data stream collector, pm mapper

2. PNF simulator - Define data stream, Define YANG model for consequence action

3. TCA -Define threshold

4. Policy - Define policy

5. Blueprint Processor - Define action to trigger on the PNF

Here are the actions to be take:

JIRA	Description	Owner	Comments

JIRA	Description	Owner	Comments
	PNF simulator: PNF data file to be collected PNF Content for reconfiguration	Ericsson	Provide a sample of the pnf json/xml content that will be reconfigured using Yang Path.
	Define Artifacts for DCAE (DFC, Mapper, TCA)	Ericsson
	Define Policy rules	Ericsson
	Define PNF Action to be taken by CDS. Define CDS blueprint to be executed	Ericsson
POLICY-1656: Verify APEX policies work towards CC_SDK CDS using support in policy-modelsClosed	Get recipe to integrate plugin in APEX	Ericsson	Add another plugin for carrying events into and out of APEX, another one of these https://github.com/onap/policy-apex-pdp/tree/master/plugins/plugins-event/plugins-event-carrier Event Carrier plugin review submitted just now: https://gerrit.onap.org/r/#/c/85683/ We also need an event protocol plugin to translate an APEX event into a CDS ExecutionServiceInput object. That's where the APEX and CDS metadata should meet. --- 04/29: Update 1) Check CDS simulator for testing purpose 2) Code Review ongoing 3) Clarify PoC in Policy framework
	Integrate CDS client	Bell Canada	gRPC [preferred] or HTTP SO client: https://github.com/onap/so/tree/master/common/src/main/java/org/onap/so/client/cds SDNC client: https://github.com/onap/ccsdk-sli-adaptors/tree/master/grpc-resource/provider/src/main/java/org/onap/ccsdk/sli/adaptors/grpc CDS wiki link: CCSDK Dublin Controller Design Studio Initiative
	Help define the CDS blueprint once action identify	Bell Canada	NOTE: This is a single action is required to reconfigure the PNF. The single action will execute the steps of param resolution, content generation and content distribution using Yang Patch. Leveraging the work done in Dublin release.

First draft sequence diagram: