Get forex rates from openexchangerates.org
docker build --build-arg JAR_FILE=target/forex-convert-service-0.0.1-SNAPSHOT.jar --file=Dockerfile --tag=spring-demo/forex-convert-service:latest .
docker run --network=spring-demo -i -t -d spring-demo/forex-convert-service
curl http://localhost:9000/forex-convert-service/convert/100/USD/ZAR | json_pp