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Dublin is the start for the Policy Framework team to re-build the infrastructure in order to better support multiple PDP engines and fix many issues with policy deployment. For more specifics, please refer to these pages:
- The ONAP Policy Framework: Architectural Improvements for Dublin
- Control Loop Operation and Improvements. - NOTE this improvement will also be integrated with the existing architecture and available to Control Loop applications using the old API in Dublin.
- Current API Limitations with Respect to DCAE mS Policies - WIP to help future teams to map new API's to the old API's
A description of the new architecture is described here:
New or modified interfaces
- New Interface Policy Lifecycle API - new API that is RESTful and supports TOSCA Policy Types
- A brief flow has been worked by the team here: TO BE DELETED - refer to Dublin Documentation
- Swagger documentation is being built and the team will conform with API Versioning specifications -
- Legacy API - no real modifications that require any ONAP component to upgrade
- https://onap.readthedocs.io/en/casablanca/submodules/policy/engine.git/docs/platform/offeredapis.html
- New List API added - documentation updated for this.
If they are modified, are the backwards compatible?
No With regard for the new Policy Lifecycle API - the design prohibits that of the Old API prohibits any backward compatibility and isn't feasible. The current legacy API is still available for applications that still use it for the next few releases until it can be safely deprecated.
However, the Policy Lifecycle API will support in Dublin the Casablanca non-TOSCA policy models for Control Loop operational policies and guard policies for the CLAMP project.
Interface naming (point to an example)
The Policy R4 Dublin Independent Versioning And Release Process Plan - has a list of our incoming and outgoing dependencies.
Consumed API from other projects
Project | API Dependency | Notes |
|---|---|---|
| Portal | 2.4.0 | |
| AAF | v2.1.2 | |
| Dmaap | v1.1.8 | |
| SDC | 1.3.0 | |
| AAI | 1.0.1 - being investigated | v16 schema NOTE: work whether to direct link to A&AI libraries or retain the current codebase and enhance for custom query work. |
| APP-C | Dmaap LCM API | No direct link to any libraries |
| SO | REST - No direct link to any libraries | |
| VFC | REST - No direct link to any libraries | |
| SDNR | Dmaap - No direct link to any libraries | |
| SDNC | REST - No direct link to any libraries |
Published API - These projects use the policy libraries to build their code
Project | API | Notes |
|---|---|---|
| CLAMP | Policy Lifecycle API | implemented in own java code |
| OOF | Legacy Policy API | implemented in own python code |
| SDNC | Legacy Policy API | implemented in own code |
| DCAE | Policy Lifecycle API | Implemented own python code |
Reference to the interfaces.
Policy Lifecycle API - TO BE DELETED - refer to Dublin Documentation
Legacy API: Policy API
What are the system limits?
4Gb Memory - for most of the components.
Team will be trying to minimize the footprint in Dublin by using Alpine and the re-build of the components should address unreasonable memory requirements.
Involved use cases, architectural capabilities or functional requirements.
vFW, Scale Out, vCPE, CCVPN and BBS are targeted for support.
Model driven Control Loop Design via the Control Loop Sub Committee
Listing of new or impacted models used by the project (for information only).
New Policy Type models for Control Loops is being built for Dublin. These are simply ports from existing non-TOSCA compliant models towards TOSCA compliance and a step towards integration with SDC design time. The first models are for DCAE uS Policy Models.
Will be working with the Modeling Sub Committee to hand over the models for integration with other ONAP Data and Information Models.