.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. SPDX-License-Identifier: CC-BY-4.0
.. Copyright (C) 2021 Nordix

Developer Guide
===============

This document provides a quickstart for developers of the Non-RT RIC Information Coordinator Service.

Additional developer guides are available on the `O-RAN SC NONRTRIC Developer wiki <https://wiki.o-ran-sc.org/display/RICNR/Release+F>`_.

The Information Coordinator Service is a Java 11 web application built using the Spring Framework. Using Spring Boot
dependencies, it runs as a standalone application.

Its main functionality is to act as a data subscription broker and to decouple data producer from data consumers.

See the ./config/README file in the *information-coordinator-service* directory Gerrit repo on how to create and setup
the certificates and private keys needed for HTTPS.

Start standalone
++++++++++++++++

The project uses Maven. To start the Information Coordinator Service as a freestanding application, run the following
command in the *information-coordinator-service* directory:

    +-----------------------------+
    | mvn spring-boot:run         |
    +-----------------------------+

There are a few files that needs to be available to run. These are referred to from the application.yaml file.
The following properties have to be modified:

* server.ssl.key-store=./config/keystore.jks
* app.webclient.trust-store=./config/truststore.jks
* app.vardata-directory=./target

Start in Docker
+++++++++++++++

To build and deploy the Information Coordinator Service, go to the "information-coordinator-service" folder and run the
following command:

    +-----------------------------+
    | mvn clean install           |
    +-----------------------------+

Then start the container by running the following command:

    +--------------------------------------------------------------------+
    | docker run nonrtric-information-coordinator-service                |
    +--------------------------------------------------------------------+

Kubernetes deployment
+++++++++++++++++++++

Non-RT RIC can be also deployed in a Kubernetes cluster, `it/dep repository <https://gerrit.o-ran-sc.org/r/admin/repos/it/dep>`_.
hosts deployment and integration artifacts. Instructions and helm charts to deploy the Non-RT-RIC functions in the
OSC NONRTRIC integrated test environment can be found in the *./nonrtric* directory.

For more information on installation of NonRT-RIC in Kubernetes, see `Deploy NONRTRIC in Kubernetes <https://wiki.o-ran-sc.org/display/RICNR/Deploy+NONRTRIC+in+Kubernetes>`_.

For more information see `Integration and Testing documentation in the O-RAN-SC <https://docs.o-ran-sc.org/projects/o-ran-sc-it-dep/en/latest/index.html>`_.