We use Keycloak as our Auth server
$ docker-compose up -d
$ curl -X POST -d "client_id=spring-boot-poc-client" -d "username=spring-boot-poc-user" -d "password=abc123" -d "grant_type=password" -v "http://localhost:8100/auth/realms/spring-boot-poc-realm/protocol/openid-connect/token"
$ curl -X POST -d "client_id=spring-boot-poc-client-reader" -d "username=spring-boot-poc-user" -d "password=abc123" -d "grant_type=password" -v "http://localhost:8100/auth/realms/spring-boot-poc-realm/protocol/openid-connect/token"