Simulate a simple 2-tier application with a NGINX + PHP frontend and a MySQL backend. Both frontend and backend are Docker Compose container applications. The frontend's web page is stored outside of the NGINX container which makes it easy to change on the fly.
Depending on whether you want the backend component to run on its own machine, prepare one or two Ubuntu 22.04 machines:
sudo apt update && sudo apt install git docker-composegit clone https://github.com/rutgerblom/2-tier-app.git ~/git/2-tier-appchmod +x ~/git/2-tier-app/frontend/up.shchmod +x ~/git/2-tier-app/frontend/down.shchmod +x ~/git/2-tier-app/backend/up.shchmod +x ~/git/2-tier-app/backend/down.sh
Modify the values for $host and $port within the frontend/src/index.php file so that these match the IP address and port number of your backend. When using the backend that is included in this repository the port number should be 3306 (MySQL).
To start the frontend:
sudo ~/git/2-tier-app/frontend/up.sh
To stop the frontend:
sudo ~/git/2-tier-app/frontend/down.sh
Depending on your use case, the backend component can run on the same or on a different machine.
To start the backend:
sudo ~/git/2-tier-app/backend/up.sh
To stop the backend:
sudo ~/git/2-tier-app/backend/down.sh