Simple 'Hello World' style app to give something to deploy.
docker build -t dummy .
docker run -p "8080:80" -e "FOREIGN_SERVICE_URL=SOMEURL" dummy
Go to http://localhost:8080 in your browser.
To access the URL which consumes some other service, be sure to specify a valid FOREIGN_SERVICE_URL
as per the docker run
instruction above, then go in your browser to http://localhost:8080/retrieve_other_service_content.