## Compose sample application ### PHP server with an Nginx proxy and a MySQL database Project structure: ``` . ├── backend │   ├── index.php ├── db │   └── password.txt ├── docker-compose.yaml ├── proxy │   ├── conf │   └── Dockerfile └── README.md ``` [_docker-compose.yaml_](docker-compose.yaml) ``` services: backend: image: php:8.0.3-fpm-buster ... db: image: mysql:8.0.19 ... proxy: build: proxy ports: - 80:80 ... ``` The compose file defines an application with three services `proxy`, `backend` and `db`. When deploying the application, docker-compose maps port 80 of the proxy service container to port 80 of the host as specified in the file. Make sure port 80 on the host is not already in use. ## Deploy with docker-compose ``` $ docker-compose up -d Creating nginx-php-mysql_db_1 ... done Creating nginx-php-mysql_backend_1 ... done Creating nginx-php-mysql_proxy_1 ... done ``` ## Expected result Listing containers must show three containers running and the port mapping as below: ``` $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 2244050972fc nginx-php-mysql_proxy "/docker-entrypoint.…" 51 seconds ago Up 49 seconds 0.0.0.0:80->80/tcp nginx-php-mysql_proxy_1 75353040cb38 nginx-php-mysql_backend "docker-php-entrypoi…" 51 seconds ago Up 50 seconds 9000/tcp nginx-php-mysql_backend_1 e54bd7e0c790 mysql:8.0.19 "docker-entrypoint.s…" 52 seconds ago Up 50 seconds 3306/tcp, 33060/tcp nginx-php-mysql_db_1 ``` After the application starts, navigate to `http://localhost:80` in your web browser or run: ``` $ curl localhost:80

hello world in php!

``` Stop and remove the containers ``` $ docker-compose down ```