Semantic Hub Setup

This guide provides instructions to configure and enable the Semantic Hub component.

Precondition: Build the Fuseki Docker Image

The Semantic Hub requires a compatible Fuseki Docker image. Follow these steps to build the image:

Download the Fuseki Docker Files: Download the jena-fuseki-docker-4.7.0.zip file from the Maven repository: Download Fuseki Docker.

Extract the Zip File:

unzip jena-fuseki-docker-4.7.0.zip
cd jena-fuseki-docker-4.7.0

Build the Docker Image:

docker build --build-arg JENA_VERSION=4.7.0 -t jena-fuseki-docker:4.7.0 --platform linux/amd64 .

Once the Fuseki Docker image is built and available, enable the Semantic Hub in the Helm values file.

Update the values.yaml file to enable the semantic-hub component:
```
semantic-hub:
  enabled: true
```

Deploy the Umbrella Chart with the updated configuration:

helm upgrade --install umbrella . --namespace umbrella --create-namespace

Once deployed, the Semantic Hub will be accessible at the following endpoint:

http://semantics.tx.test/discoveryfinder/swagger-ui/index.html

Ensure that the semantic-hub component is running by checking the Kubernetes pods:
```
kubectl get pods --namespace umbrella
```
Use the Swagger UI to interact with the Semantic Hub's API for testing and integration.

For further details, refer to the official documentation.

This work is licensed under the CC-BY-4.0.