3.1. Overview

Parser is an open source project and licensed under Apache 2. Parser will help to provide a tooling mechanism, by parsing Telecom operators’ VNF descriptors (YANG templates) into TOSCA templates and then further translate TOSCA templates into certain common templates, which could be used in IaaS orchestration projects like OpenStack Heat.

3.2. Prerequisites

Parser - POLICY2TOSCA requires the following to be installed.

3.2.1. 1. cliff

Install cliff with the following links. :: - install <http://docs.openstack.org/developer/cliff/install.html> or - demoapp <http://docs.openstack.org/developer/cliff/demoapp.html>

3.3. Installation

Please follow the below installation steps to install parser - POLICY2TOSCA.

Step 1: Clone the parser project.

git clone https://gerrit.opnfv.org/gerrit/parser

Step 2: Install the policy2tosca module.

cd parser/policy2tosca
python setup.py install

3.4. Execution

Step 1: To see a list of commands available.

policy2tosca --help

Step 2: To see help for an individual command, include the command name on the command line

policy2tosca help <service>

Step 3: To inject/remove policy types/policy definitions provide the TOSCA file as input to policy2tosca command line.

policy2tosca <service> [arguments]


policy2tosca add-definition --policy_name rule2 --policy_type  tosca.policies.Placement.Geolocation --description "test description" --properties region:us-north-1,region:us-north-2,min_inst:2 --targets VNF2,VNF4 --metadata "map of strings" --triggers "1,2,3,4" --source example.yaml

Step 4: Verify the TOSCA YAMl updated with the injection/removal executed.

cat "<source tosca file>"


cat example_tosca.yaml