Simple PHP-FPM and Nginx docker application setup

$ tree
.
├── docker
│   ├── .env
│   ├── docker-compose.yml
│   ├── nginx
│   │   ├── app.conf
│   │   └── Dockerfile
│   └── php
│       ├── Dockerfile
│       └── www.conf
├── index.html
└── index.php

Success: HTML page (Frontend)

echo 'Success: PHP page (Frontend)'.PHP_EOL;

COMPOSE_PROJECT_NAME=frontend
IMAGE_TAG=latest

version: "3"

services:
  php:
    build:
      context: ./php
    image: "${COMPOSE_PROJECT_NAME}/php:${IMAGE_TAG}"
    hostname: "${COMPOSE_PROJECT_NAME}-php"
    volumes:
      - ..:/app:cached
      - ./php/www.conf:/usr/local/etc/php-fpm.d/www.conf:cached
    working_dir: /app
  nginx:
    build:
      context: ./nginx
    image: "${COMPOSE_PROJECT_NAME}/nginx:${IMAGE_TAG}"
    hostname: "${COMPOSE_PROJECT_NAME}-nginx"
    ports:
      - "8081:80"
    volumes:
      - ..:/app:cached
      - ./nginx/app.conf:/etc/nginx/conf.d/default.conf:cached
    depends_on:
      - php

[www]

user = www-data
group = www-data

listen = nginx:9000

pm = dynamic
pm.max_children = 40
pm.start_servers = 2
pm.min_spare_servers = 2
pm.max_spare_servers = 4
pm.max_requests = 500

FROM php:7.2-fpm-alpine

ENV PS1="\u@\h:\w\\$ "

RUN apk add --no-cache bash

CMD ["php-fpm"]

server {
    listen 80 default_server;

    server_name frontend.com www.frontend.com;

    root /app;

    location ~ \.php$ {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass php:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }

    error_log /var/log/nginx/app_error.log;
    access_log /var/log/nginx/app_access.log;
}

FROM nginx:1.15-alpine

ENV PS1="\u@\h:\w\\$ "

RUN apk add --no-cache bash

docker$ docker-compose up -d
Creating network "frontend_default" with the default driver
Building php
Successfully tagged frontend/php:latest
Building nginx
Successfully tagged frontend/nginx:latest
Creating frontend_php_1 ... done
Creating frontend_nginx_1 ... done

$ docker images
REPOSITORY            TAG                 IMAGE ID            CREATED             SIZE
frontend/nginx        latest              1a6733564021        32 minutes ago      21.6MB
frontend/php          latest              8fb15087688c        About an hour ago   79.5MB
nginx                 1.15-alpine         63356c558c79        10 days ago         17.8MB
php                   7.2-fpm-alpine      9966b8ea0bdc        3 weeks ago         78.1MB

$ docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
8cbe907420d5        frontend_default    bridge              local

$ docker ps
CONTAINER ID        IMAGE                   COMMAND                  PORTS                  NAMES
d24d5ef9e31a        frontend/nginx:latest   "nginx -g 'daemon of…"   0.0.0.0:8081->80/tcp   frontend_nginx_1
b9bf557b7ac7        frontend/php:latest     "docker-php-entrypoi…"   9000/tcp               frontend_php_1

docker$ docker-compose ps
      Name                    Command              State          Ports
-------------------------------------------------------------------------------
frontend_nginx_1   nginx -g daemon off;            Up      0.0.0.0:8081->80/tcp
frontend_php_1     docker-php-entrypoint php-fpm   Up      9000/tcp

$ curl http://localhost:8081
Success: HTML page (Frontend)

$ curl http://localhost:8081/index.php
Success: PHP page (Frontend)