# VNF Onboarding Guidelines

This is the main document that collect procedures and best practices to onboard VNFs in OSM.

## Contents

The complete onboarding process implies producing a VNF Package that will be part of the OSM catalogue for its inclusion in a Network Service. 

The onboarded VNF should aim to fulfill the lifecycle stages that the NFV MANO layer should be able to automate. Hence, the resulting package, should include all the requirements, instructions and elements to achieve basic instantiation (a.k.a. "Day-0"), service initialization (a.k.a. "Day-1") and runtime operations (a.k.a. "Day-2").

More information on the delimitation of these stages can be found in the [*OSM Scope and Functionality*](https://osm.etsi.org/wikipub/index.php/OSM_Scope_and_Functionality) document.

As such, the document is structured in the following three parts, providing guidelines for building the VNF Package to achieve each lifecycle stage sucessfully.

1. Day 0: VNF Instantiation & management setup
1. Day 1: VNF Services initialization
1. Day 2: VNF Runtime operations

## Guidelines for contributors

* General OSM documentation guidelines must be followed, as detailed in [this document](https://osm.etsi.org/gitlab/osm-doc/documentation-how-to/blob/master/Workflow%20for%20documentation%20production%20in%20OSM.md#guide-for-contributors)
* Every section of this document, under a "H1" tag (single #), is contained in a single file, and formatted according to the following [sample document](#)