.. This work is licensed under a Creative Commons Attribution 4.0
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.. _docs_5g_pnf_pnp:

5G - PNF Plug and Play
----------------------

Source files
~~~~~~~~~~~~

- Base PnP PNF Simulator heat template file: https://git.onap.org/integration/tree/test/mocks/pnfsimulator/deployment/PnP_PNF_sim_heat_template_Ubuntu_16_04.yml

Description
~~~~~~~~~~~

The PNF Plug and Play is a procedure that is executed between a PNF and ONAP. In the process of PNF registration, ONAP establishes a PNF resource instance for the PNF with a corresponding A&AI entry. The PNF registration uses a VES exchange with the PNF Registration handler within ONAP to complete the registration. Allowing the PNF resource instance to be associated with an existing service instance. This use case is intended to be applicable to a variety of PNFs such as routers and 5G base stations. The steps and descriptions have been drafted to be as general as possible and to be applicable to a relatively wide variety of PNFs. However, the use case was originally developed with a consideration for 5G PNF Distributed Units (DU).

**Useful Links**

- `5G - PNF Plug and Play use case documentation <https://wiki.onap.org/display/DW/5G+-+PNF+Plug+and+Play>`_
- `5G - PNF Plug and Play - Integration Test Cases <https://wiki.onap.org/display/DW/5G+-+PNF+PnP+-+Integration+Test+Cases>`_
- `5G - PNF Plug and Play test cases status for Casablanca release <https://wiki.onap.org/display/DW/5G+-+PNF+PnP+-+Test+Status>`_
- `Instruction how to setup PnP PNF Simulator <https://wiki.onap.org/display/DW/PnP+PNF+Simulator>`_

How to Use
~~~~~~~~~~

1) `Create and distribute service model which contains PNF <https://wiki.onap.org/display/DW/5G+-+PNF+PnP+-+Integration+Test+Cases#id-5G-PNFPnP-IntegrationTestCases-CreateanddistributeservicewhichcontainsPNF>`_
2) `Create service for PNF and wait for PNF Ready message in DmaaP topic <https://wiki.onap.org/display/DW/5G+-+PNF+PnP+-+Integration+Test+Cases#id-5G-PNFPnP-IntegrationTestCases-PNFReady>`_
3) `Send PNF Registartion request from PnP PNF Simualtor and finish registration <https://wiki.onap.org/display/DW/5G+-+PNF+PnP+-+Integration+Test+Cases#id-5G-PNFPnP-IntegrationTestCases-PNFregistrationacceptingwhenAAIentrycreatedinadvance>`_


Known Issues and Resolutions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In SO BPMN in mechanism making re-subscription to /events/unauthenticated.PNF_READY topic there is an issue `SO-1253 <https://jira.onap.org/projects/SO/issues/SO-1253>`_.
By default after ONAP and PRH deploy DMaaP topic /events/unauthenticated.PNF_READY is not present.
It is created by PRH after first expected PNF registration event arrival to ONAP system.
If service for PNF will be created before topic /events/unauthenticated.PNF_READY will be present then service will not be able to read from the topic.


**Workaround**

- Before starting any PNF service verify if unauthenticated.PNF_READY topic exists using command:

::

   curl --header "Content-type: application/json" --request GET http://<kubernetes slave IP>:30227/topics/listAll

- If it doesn't exists send following curl in order to create topic:

::

   curl --header "Content-type: application/json" --request POST --data '[{"correlationId": "test"}]' http://<kubernetes slave IP>:30227/events/unauthenticated.PNF_READY

- Once again verify if topic exists
- If the PNF service will be started before unauthenticated.PNF_READY topic creation, then there will be a need to restart SO-BPMN docker container