This page details how to execute the demo that was recorded on the 14th of April 2021 at the DCAE meeting. The demo illustrates the flow of the control loop participant architecture and how it will create and manage services. Specifically, this demo shows the use of the control loop runtime's commissioning and instantiation API to trigger the deployment of the PMSH policy through the policy participant and the instantiation of the PMSH service through the DCAE participant. The DCAE participant uses the existing CLAMP backend to send requests and relay responses to the other participants and the runtime. This demonstration is not to be considered a reflection of the final implemented flow but merely as an indication of the currently implemented progress. The flow of the demo is shown in the image below.

Prerequisites

• Access to a Kubernetes Cluster running an ONAP deployment (version 7 or 8).
• Docker and Docker Compose installed locally.
• Java 11.
• A running CLAMP backend (connected to the Kubernetes cluster) with a local MariaDB database. This is running from commit ebc6907968050189688a0b8ccc0e0c42419a9202 on the master branch.

Setup CLAMP and MariaDB

Alterations to CLAMP

Some files need to be added to CLAMP in order for the demo to run successfully. These files include configuration files for Springboot and scripts to pre-populate the database.

1. Add the PMSH template file to "extra/sql/dump/k8s-pmsh-bp.yaml". The file is available here k8s-pmsh-bp.yaml.
2. There should be an SQL script in "extra/sql/dump/poc-test-data.sql". The file is available here poc-test-data.sql.
3. The file at "extra/sql/dump/load-fake-data.sh" needs to be altered to refer to "poc-test-data.sql". The altered version is here load-fake-data.sh.
4. For conveneince, one can alter the docker-compose file at "extra/docker/clamp/docker-compose.yml" to match the one provided here docker-compose.yml. This is not strictly needed but makes it easier to delete volumes during the docker container deployment.
5. The Springboot properties file at "src/main/resources/application-noaaf.properties" should be altered to reflect to addresses and ports of your own Kubernetes cluster. By default, this properties file does not point to any cluster. For our case, we altered our local "/etc/hosts" file to associate hostnames with ip addresses - we then manually entered the relevant NodePorts into the properties file. An example is here application-noaaf.properties.

Build CLAMP

Run the following from the command line in the CLAMP root directory.

mvn clean install