The detailed instructions to run Red Hat Helloworld MSA demo, can be found at the following repository: https://github.com/redhat-helloworld-msa/helloworld-msa
This Repository creates a container that starts KeyCloak.
During the startup, the file helloworldmsa.json that containes the helloworld-msa Realm is imported.
The script register-clients.sh is also executed to create a client for the frontend.
You can customize the frontend URL using the environent variables $OS_SUBDOMAIN='rhel-cdk.10.1.2.2.xip.io' and $OS_PROJECT='helloworld-msa'
After the startup it used $KEYCLOAK_USER and $KEYCLOAK_PASSWORD environemtn variables to create the admin credentials.