Docker: Installation instructions can be found here: https://docs.docker.com/install/
In addition, we need to request a x509 standard certificate from OpenSSL using RSA 2048 bit encryption (example expires after 1 year).
place these certificates in nginx/ssl folder as private key (nginx.key) and public certificate (nginx.crt).
Run this command prior to building the containers
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout nginx/ssl/nginx.key -out nginx/ssl/nginx.crt
Implementation fon an NGINX API Gateway, centralising and distributing API calls to several independent services, acting as a proxy and adding authentication and encryption for all traffic through the API gateway, ensuring a single point of contact, rather than traffic going directly to each microservice.
# Import collection "NGINX API Gateway.postman_collection.json" on Postman or preferred client
$ npm install
$ docker-compose build --no-cache
$ docker-compose up -d# coffe service as an example
# can be any of the services in docker-compose file
$ docker-compose scale coffee=4