24 May 2023, ISG NFV Leadership team
Two new management services interfaces, CIS MCCO (Managed CIS Cluster Object) and CIS instance, as specified in ETSI GS NFV-IFA 036 “Specification of requirements for the management and orchestration of container cluster nodes”, are added to the scope.
Consequently, the latest published version of the reference Kubernetes® API are profiled as NFV protocol and data model solution for the new management services. Three kinds of Kubernetes® resource objects (daemonSets, CRDs and PersistentVolumes) are mapped to the NFV objects of the CIS MCCO management service interface. One kind of Kubernetes® resource object (Node) is mapped to the NFV objects of the CIS instance management service. All mentioned resource objects are deployed as part of the cluster management.
For the above resource objects, their resource methods are profiled to match the corresponding NFV service interface requirements and flow sequence diagrams for the CIS MCCO and CIS instance operations are provided.
For the Support for the expression of virtual NIC interface requirements, the ‘cni’ capability specified and registered in the ETSI NFV NFVI Platform Capability Registry allows the expression in a VNFD of requirements related to secondary container cluster network and, based on them, allows MANO functions to select an appropriate CNI.
ETSI GS NFV-SOL 009 – RESTful protocols specification for the management of NFV-MANO:
The CIR function, container image registry, is added as a managed entity
Other enhancements:
In relation to the connectivity to primary cluster networks, support of address pools for load balancers and modelling of ingress is part of this edition.
OAuth2.0 scope values have been specified for the VNF LCM, the NS LCM and the VNF Package interfaces. They allow to restrict the authorization of the consumer to read or manipulate certain resources within an interface. In the next editions further scope values will be defined for other interfaces.
The VNF package specification was enhanced to align with the stage 2 provisions for licensing.
As an enhancement of “Flexibility with scalable VNF/NS instantiation”, new provisions were created that allow e.g. the consumer of the NS LCM interface to indicate the target scale level of a constituent VNF, or to specify in an NSD the target scale level of a nested NS.
RESTful protocols specification for the Policy Management Interface has added new provisions to align with the policy information model specified in the recently published ETSI GS NFV-IFA048.
After this big package it is planned to complete the Release 4 feature development in the next edition 4.5.1, which is planned for this summer.
