1. Introduction of Parser Project

In NFV, various templates (such as descriptors, records and so on) are utilized to describe the deployment requirements (such as basic VM requirements – vCPU, memory, storage, as well as the NFV acceleration management requirement such as Huge Pages support, SR-IOV, NUMA affinity, DPDK support etc.), the post-instaniation records (such as storage usage report, CPU performance report etc.) or other purposes. However in order to make these templates adaptable and feasible for purpose like deployment orchestration/automation, certain tooling mechanism that provides template translation is necessary.

Project Parser will help to provide such tooling mechanism, by parsing Telecom operators’ descriptors/records into TOSCA/CAMP templates and then further translate TOSCA/CAMP templates into certain common templates, which could be used in IaaS orchestration projects like OpenStack Heat.

For Release B, Parser offers the following capabilities:

  • Integration of Heat-Translator Liberty release code. (both heat in-tree code and standalone package are provided)
  • Yang2Tosca module which offers the capability to translate yang based scriptors to tosca formate templates. Users could further use Heat-translator module to translate this tosca template to Heat Orchestration template. Yang2Tosca module could be installed seperately after user installed OPNFV B release platform.
  • The “parser_new_keywords” document demonstrate a set of keywords concluded by Parser team that need to be supported in tosca to heat translation. However it should be noted that these keywords only serve as a roadmap. We will start from Release C to indicate which specific set of keywords are supported in Parser.
  • The “vRNC_tosca_intro” document describes Parser’s use case analysis on vRNC scenario. The “example” folder contains examples of tosca-nfv standard and vRNC scenario. See also https://wiki.opnfv.org/parser .