Enhancement of NBI API to collect VNF metrics

Proposers

Vijay R S (Tata Elxsi)

Type

Feature

Target MDG/TF

NBI

Description

Present API implementation for NS metric collection in NBI(Feature 7270) only fetch NFVI metrics, not the VNF metrics.

NFVI metrics listed as, cpu_utilization average_memory_utilization disk_read_ops disk_write_ops disk_read_bytes disk_write_bytes packets_dropped_ packets_received packets_sent

Improvising the NBI to fetch both VNF and NFVI metrics from Prometheus as part of the same API.

This can be done by making NBI fetch VNFRs collection from mongodb and get the VNF metric names with that NBI can query Prometheus to get the VNF metrics.

Demo or definition of done

Working NBI API which will fetch metrics of both NFVI and VNFs.