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Page Status: Copied from R6 - Mar, 22, 2020
Component Status: ArchCom Review done on the 28th of July 2020
Last updated on: 30th of July 2020
Certified by: Gervais-Martial Ngueko

CLAMP (Closed loop Automation Platform):

1. High Level Component Definition and Architectural Relationships 


The CLAMP functional entity provides the capability to manage runtime control loops.  It provides the capability to

  • Create control loop from DCAE blueprint, those blueprint are either:
    •  sent by SDC to DCAE(inventory) via SDC distribution. 
    • or sent by DCAE-MOD to DCAE(inventory)
  • Create configuration policy from the policy-model Tosca, the tosca policy-model are either:
    •  sent by SDC via SDC distribution to everyone
    • or query by CLAMP to Policy. in this case the policy-model is either pre-provison in Policy
      or separately provision to Policy via the REST API exposed by Policy.
  •  Configure DCAE applications of the control loop
  • Associate µService configuration policies to the DCAE application
  • Configure the operations to be taken by the control loop (by creating/updating/deleting operational policies)
  • Deploy/un-deploy control loop flow (blueprints) to DCAE
  • Control loop visualization. 

CLAMP relies on Policy to communicate to App-C/VF-C/SDN-C/SO in runtime, hence these are not part of CLAMP 

2. API definitions

CLAMP provides the following interfaces: (add the link to the interfaces)

Interface NameInterface Definition Interface CapabilitiesAPI Spec (Swagger)
CLAMPE-1Control Loop Lifecycle Management Interface.   A user interface for:
  • Selecting the control loop flow
  • Entering configuration policy parameters
  • Entering operational policy parameters
  • Managing life cycle of DCAE control flow blueprint 
  • Select a Service to associate to a Control Loop to be instanciated

N/A

(GUI)

CLAMPE-2Control loop dashboard.  User interface to show the overall status of the control loop through DMAAP events

 Display and update:

  • Events received and actions taken on the control loop.
N/A
(GUI: kibana)

Note:   xxxI interface is a Component internal interface.  xxxxE interface is a component external interface

The current API documents can be found at:

CLAMP consumes the following Interfaces:

Interface NamePurpose Reason For UseAPI Spec (Swagger)
SDCE-6To receive the Control Loop Blueprint from SDCTo receivehttps://docs.onap.org/projects/onap-sdc/en/latest/offeredapis.html
PolicyE-2To create and configure the closed Loop Operational Policies and Configuration policies(DCAE Aps. Config.)https://docs.onap.org/projects/onap-policy-parent/en/latest/offeredapis.html
PolicyE-1 To query policy-model based on a policy-model id. used for Configuration policy-model and Operational Policy-modelhttps://docs.onap.org/projects/onap-policy-parent/en/latest/offeredapis.html
DCAEE-x 
  • Retrieve DCAE appplication status
  • Retrieve DCAE µS lists
  • Retrieve DCAE µS description and blueprints
https://docs.onap.org/projects/onap-dcaegen2/en/latest/sections/apis/inventory.html
DCAEE-y Deploy/remove DCAE application. https://docs.onap.org/projects/onap-dcaegen2/en/latest/sections/apis/deployment-handler.html
CDS-1Get list of operations/actions and corresponding payload for Operational Policy where selected actor is "CDS".

AAF-1done via cady plugin(so not directly CLAMP code), authenticate/authorize user when accessing Management interface of CLAMP ('CLAMP-1' above)

https://docs.onap.org/projects/onap-aaf-authz/en/latest/index.html#master-index

https://docs.onap.org/projects/onap-aaf-certservice/en/latest/sections/offeredapis.html#aaf-cert-service-api

https://docs.onap.org/projects/onap-aaf-sms/en/latest/api.html


3. Component Description:

A more detailed figure and description of the component.

https://docs.onap.org/projects/onap-clamp/en/latest/index.html#master-index

4. known system limitations

Runtime: None

Clamp data redundancy is dependent on Kubernetes and the persistent volume.

Clamp application redundancy HA relies on Kubernetes

5. Used Models

Clamp uses the following models:

  • Service model (received from SDC)
  • VNF model (received from SDC)
  • Policy Model.


6. System Deployment Architecture


FFS

7. New Capabilities in this Release

-

8. References

  1. CLAMP Overview : https://docs.onap.org/projects/onap-clamp/en/latest/index.html#master-index
  2. CLAMP internal interfaces:  https://docs.onap.org/projects/onap-clamp/en/latest/_downloads/d25f20712a4cf2524a1cf13242349743/swagger.pdf 
  3. CLAMP User Guide: https://docs.onap.org/projects/onap-clamp/en/latest/user-guide.html#



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