Developing a Package

Objectives

Develop VNF or Network Service project artifacts that, when complete, will constitute a releasable package.

Pre-requisites

• CI/CD Hub and a development environment with a dedicated Telco Network Cloud Orchestration (TNC-O) and VIM
• A VNF or Network Service project already exists.

Developing a VNF or Network Service Descriptor

Push your project into dev environment (assume this is called ‘dev’ in the LMCONFIG file for LMCTL):

$ cd <myvnf dir>
$ lmctl project push dev

Design the VNF or Network Service Descriptor

• Log into the TNC-O UI
• Go to the ‘Assembly Designer’ and open the descriptor with your project name.
• Select Add Element and add resource elements that should be contained in your design. For a Network Service this can be VNFs or other Network Services. For VNFs this will be VNFCs/resource descriptors.
• Edit the descriptors:
  • Properties
  • Property mappings
  • Relationships
  • Promoted operations
  • Policies
• Save your changes

Developing VNFC/Resource Lifecycles

These should be detailed in the VNF or NS design

For a VNF add VNFC artifacts

• You need to add playbooks for each lifecycle operation of each VNFC that is in your design. Edit the playbooks in the package structure. Remove any that are not used.
• Add playbooks for any relationship operations on your VNFC in your design
• Edit each VNFC descriptor with:
  • Properties
  • Lifecycle Operations
  • Relationship Operations
  • Metrics
  • Policies These should be detailed in the VNFC design

Commit changes to the develop branch as you go.

Creating behaviour Tests

In the TNC-O designer, you can add Behaviour Tests to your project by performing the following tasks:

• Design a behaviour test for the VNF or Network Services that installs it to it’s active state.
• Now run the test above.
• If the behaviour test is passing run the following commands on your local machine to export the behaviour test to your local machine, and add it to your git project:

$ lmctl project pull dev
$ git add .
$ git commit -m 'Lifecycle Behaviour Test passed'
 ```

• If the test is failing, investigate the failure and fix.
• Retest until all behaviour tests are passing

Push your project changes to the CI/CD Hub. You have now completed a basic VNF or Network Service set of steps. You know that it can be deployed and have tested it’s lifecycle.

  $ git push origin master develop

Now you have a VNF that can be installed and managed through it’s lifecycle. You can add further tests to validate that it is all functioning correctly.