https://laratutorials.com/node-js-express-get-client-ip-address-tutorial/
https://www.katacoda.com/courses/docker/2
https://github.com/primus/forwarded-for
https://nodejs.org/en/docs/guides/nodejs-docker-webapp/
git clone [email protected]:jackchun/nodejs-app.git
# git clone https://github.com/jackchun/nodejs-app.git
curl -i --header "X-Forwarded-For: 192.168.0.2" http://docker:49160
curl -i --header "X-Forwarded-For: 192.168.0.2" http://localhost:8080