version: '3.1'

services:
  db:
    image: mysql
    restart: always
    environment:
      - MYSQL_DATABASE=mgsv
      - MYSQL_USER=mgsv_user
      - MYSQL_PASSWORD=mgsvpass
      - MYSQL_ROOT_PASSWORD=mysql123
    volumes:
      - ./mysql:/docker-entrypoint-initdb.d

  www:
    build: ./mGSV
    restart: always
    ports:
      - 8080:80

<?php
echo "Hello World!";
//mysqli_connect("localhost","my_user","my_password","my_db");
$con = mysqli_connect("localhost","mgsv_user","mgsvpass","mgsv");

// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }
  else {
     echo "done";
  }
?>

FROM php:5-apache

RUN apt-get update  && apt-get install -y --no-install-recommends
                openjdk-7-jdk
                maven
        git
        && rm -rf /var/lib/apt/lists/*

RUN docker-php-source extract
    && docker-php-ext-install mysql mysqli pdo pdo_mysql
    && docker-php-source delete

RUN cd /var/www/html/ && git clone https://github.com/qunfengdong/mGSV.git

# Move the folder 'mgsv' to DocumentRoot of Apache web server. By default, the DocumentRoot of Apache is /var/www/ (speak to the system administrator to know the exact DocumentRoot).
RUN cd /var/www/html/mGSV
    && mkdir tmp
    && chmod -R 777 tmp

RUN cd /var/www/html/mGSV && sed -i.bak "s|'gsv'|'mgsv_user'|" lib/settings.php
    && sed -i.bak "s|$database_pass = ''|$database_pass = 'mgsvpass'|" lib/settings.php
    && sed -i.bak "s|cas-qshare.cas.unt.edu|localhost|" lib/settings.php

RUN cp /var/www/html/mGSV/Arial.ttf /usr/share/fonts/truetype/

RUN cd /var/www/html/mGSV/ws
    && tar -xzf mgsv-ws-server.tar.gz

RUN cd /var/www/html/mGSV/ws/mgsv-ws-server
    && mvn package

RUN cp -f /var/www/html/mGSV/ws/mgsv-ws-server/target/ws-server-1.0RC1-jar-with-dependencies.jar /var/www/html/mGSV/ws/

RUN cd /var/www/html/mGSV/ws
    && echo "mgsv_upload_url=http://localhost/mgsv" > config.properties
    && echo "ws_publish_url=http://localhost:8081/MGSVService" >> config.properties
    && java -jar ws-server-1.0RC1-jar-with-dependencies.jar &

COPY ./index.php /var/www/html/
RUN a2enmod rewrite

Hello World!
Warning: mysqli_connect(): (HY000/2002): No such file or directory in /var/www/html/index.php on line 4
Failed to connect to MySQL: No such file or directory