SOL002 Adapter - Guilin

1 Introduction
2 Use Cases
- 2.1 VNF LCM (Ve-Vnfm-em)
- 2.2 VNF Indicator Interface (Ve-Vnfm-em)
3 Feature Descriptions
4 Epic and User Story
5 SOL002 Adapter Architecture
6 SOL002 Operations
7 SOL002 Operation Sequence Flows
- 7.1 VNF LCM (Ve-Vnfm-em)
8 Location
9 DMaaP Message Format

Note: Due to the resource issue, this SOL002 Adapter is moved to the Honolulu release under REQ-400.

Introduction

SOL002 Adapter is similar ETSI adapter as SOL003 and SOL005 that does conversion of ONAP functionality to ETSI MANO functionality and back. Architecture and placement in ONAP should be inline with other ETSI adapters and all common functionality should be shared and implemented just ones e.g.

Security
HPA
Any other ONAP functionality e.g. AAI access, Policy access, Logging.

All ETSI adapters should also shared common code base for ETSI models, DTOs and interface implementation as those will be technically very same towards external MANO.

Use Cases

VNF LCM (Ve-Vnfm-em)

SOL002 VNF LCM interface use can be divided to 2 separate sub-use cases:

LCM Notification Subscribing/Consuming
- At startup SOL002 Adapter can subscribe LCM notifications from VNFM
- When receiving notifications SOL002 Adapter can perform actions e.g.:
  - Clean up VNF related Close Loop when receiving VNF terminated notification
  - Configure VNF when receiving VNF Instantiated/Healed/Scaled notification.
LCM Action execution (NOT FOR GUILIN)
- ONAP Close Loop gets triggered from VES event or by other means and can trigger SOL002 Adapter to perform action using VNF LCM interface

Benefits:

VNFC level LCM actions (compared to SOL003 which only allows action at the VNF level)

Gliffy Diagram

VNF Indicator Interface (Ve-Vnfm-em)

External VNFM can subscribe to SOL002 VNF Indicator notifications.

SOL002 Adapter reads VNF specific VES events from DMaaP according to subscriptions and converts events to SOL002 interface format and sends as Notify events to external VNFM.

Note: (NOT FOR GUILIN)

Benefits:

Enables ETSI style Close Loops in VNFM (for VNFs supporting ONAP VES events)

Gliffy Diagram

Feature Descriptions

Feature	Description

Feature

Description

SOL002 Adapter subscribes and consumes VNF LCM notifications from VNFM

SOL002 Adapter utilizes VNFM exposed SOL002 VNF LCM interface to subscribe LCM Notifications:

SOL002 Adapter subscribes LCM notifications at startup (e.g. listen all notifications)
SOL002 Adapter receives LCM notification and emits event to DCAE e.g. for Policy to consume
User should model action Policy to react to these events on ONAP side
Based on modeled action some operation can be done. E.g. with ONAP Controller to configure VNF. Clean Close loop etc.

SOL002 Adapter executes VNF LCM operations towards VNFM

SOL002 Adapter utilizes VNFM exposed SOL002 VNF LCM interface:

ONAP DCAE/Policy executes Close Loop based on VNF or VNFC level events
ONAP Controller or SOL002 Adapter directly can react to Policy trigger as Policy actor to perform LCM operation for VNF
SOL002 Adapter is used to translate LCM action to SOL002 interface format towards external VNFM
External VNFM performs VNF resource changes (VNFC or VNF level)

SOL002 Adapter receives subscription and sends VNF Indicator notifications to VNFM

SOL002 Adapter exposes VNF Indicator subscription endpoint and sends Indicator notifications to external VNFM:

VNFM calls SOL002 Adapter to subscribe VNF Indicator notifications
SOL002 Adapter stores subscriptions according to standard
SOL002 Adapter starts to listen DMaaP events based on subscription
SOL002 Adapter consumes any matching events and translates events to SOL002 Indicator notification and sends to subscriber

Epic and User Story

Epic	User Story	Description	Is Guilin?	JIRA

Epic	User Story	Description	Is Guilin?	JIRA
SOL002 Adapter		Epic: SOL002 Adapter will support EM-triggered VNF/VNFC Management	No	https://lf-onap.atlassian.net/browse/SO-2427
	SOL002 Adapter subscribes and consumes VNF LCM notifications from VNFM	SOL002 Adapter utilizes VNFM exposed SOL002 VNF LCM interface to subscribe LCM Notifications: SOL002 Adapter subscribes LCM notifications at startup (e.g. listen all notifications) SOL002 Adapter receives LCM notification and emits VES event to DCAE e.g. for Policy to consume User should model action Policy to react to these events on ONAP side Based on modeled action some operation can be done. E.g. with ONAP Controller to configure VNF, clean Close loop etc.	No	https://lf-onap.atlassian.net/browse/SO-2745
	SOL002 Adapter executes VNF LCM operations towards VNFM	SOL002 Adapter utilizes VNFM exposed SOL002 VNF LCM interface: ONAP DCAE/Policy executes Close Loop based on VNF or VNFC level events ONAP Controller or SOL002 Adapter directly can react to Policy trigger as Policy actor to perform LCM operation for VNF SOL002 Adapter is used to translate LCM action to SOL002 interface format towards external VNFM External VNFM performs VNF resource changes (VNFC or VNF level)	No
	SOL002 Adapter receives subscription and sends VNF Indicator notifications to VNFM	SOL002 Adapter exposes VNF Indicator subscription endpoint and sends Indicator notifications to external VNFM: VNFM calls SOL002 Adapter to subscribe VNF Indicator notifications SOL002 Adapter stores subscriptions according to standard SOL002 Adapter starts to listen DMaaP events based on subscription SOL002 Adapter consumes any matching events and translates events to SOL002 Indicator notification and sends to subscriber	No
	Documentation for SOL002 Adapter features	Documentation for SOL002 Adapter features	NO	https://lf-onap.atlassian.net/browse/SO-2431