Sample for nginx-php-mysql

Signed-off-by: Joseph Barreca <jbarrec.tech@gmail.com>

nginx-php-mysql/README.md

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+## Compose sample application
+### PHP server with an Nginx proxy and a MySQL database
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+├── db
+│   └── password.txt
+├── docker-compose.yaml
+├── proxy
+│   ├── conf
+│   └── Dockerfile
+├── src
+│   ├── index.php
+└── README.md
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+services:
+  backend:
+    build: backend
+    ...
+  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
+<h1>hello world in php!</h1>
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+```

nginx-php-mysql/backend/Dockerfile

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+FROM php:8.0.3-fpm-buster

nginx-php-mysql/db/password.txt

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+db-q5n2g

nginx-php-mysql/docker-compose.yaml

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+version: "3.8"
+services:
+  backend:
+    build: backend
+    secrets:
+      - db-password
+    depends_on: 
+      - db
+    volumes:
+      - ./src:/var/www/html # this part seems repetitive (jb)
+  db:
+    image: mysql:8.0.19
+    command: '--default-authentication-plugin=mysql_native_password'
+    restart: always
+    secrets:
+      - db-password
+    volumes:
+      - db-data:/var/lib/mysql
+    environment:
+      - MYSQL_DATABASE=example
+      - MYSQL_ROOT_PASSWORD_FILE=/run/secrets/db-password
+  proxy:
+    build: proxy
+    ports:
+      - 80:80
+    depends_on: 
+      - backend
+    volumes:
+      - ./src:/var/www/html # this part seems repetitive (jb)
+volumes:
+  db-data:
+secrets:
+  db-password:
+    file: db/password.txt

nginx-php-mysql/proxy/Dockerfile

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+FROM nginx:1.19.8-alpine
+COPY conf /etc/nginx/conf.d/default.conf

nginx-php-mysql/proxy/conf

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+server {
+  location ~ /.well-known {
+    allow all;
+  }
+
+  location ~ /\.ht {
+    deny all;
+  }
+
+  root /var/www/html;
+
+  index index.php index.html;
+
+  location / {
+    try_files $uri $uri/ /index.php?$args;
+  }
+
+  location ~ [^/]\.php(/|$) {
+    fastcgi_split_path_info ^(.+?\.php)(/.*)$;
+    if (!-f $document_root$fastcgi_script_name) {
+      return 404;
+    }
+
+    include fastcgi_params;
+    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+    fastcgi_param PATH_INFO       $fastcgi_path_info;
+    fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
+
+    fastcgi_pass   backend:9000;
+    fastcgi_index  index.php;
+  }
+}

nginx-php-mysql/src/index.php

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+<?php
+    echo '<h1>hello world in php!</h1>';
+?>