Elgg.org Docker and docker compose

custom.cnf

[mysqld]
default_authentication_plugin=mysql_native_password

docker-compose.yml

version: '3.3'
services:
  elgg:
    container_name: elgg
    #build: .
    image: tyranwyn/elgg
    restart: always
    ports:
      - "127.0.0.1:6000:80"
    networks:
      - internal_network
      - external_network
  db:
    container_name: elgg-db
    image: mysql:8
    restart: always
    networks:
      - internal_network
      - external_network
    ports:
      - "127.0.0.1:3306:3306"
    environment:
      - MYSQL_DATABASE=elgg
      - MYSQL_ROOT_PASSWORD=test
    volumes:
      - ./custom.cnf:/etc/mysql/conf.d/custom.cnf

networks:
  external_network:
  internal_network:
    internal: true

Dockerfile

FROM php:7.2-apache

RUN apt-get update && apt-get install -y \
			git \
            libpng-dev \
            zlib1g-dev \
    && rm -rf /var/lib/apt/lists/* \
	&& a2enmod rewrite \
    && docker-php-source extract \
    && docker-php-ext-install -j$(nproc) mysqli gd zip exif pdo_mysql \
    && docker-php-source delete

RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" \
    && php -r "if (hash_file('SHA384', 'composer-setup.php') === '93b54496392c062774670ac18b134c3b3a95e5a5e5c8f1a9f115f203b75bf9a129d5daa8ba6a13e2cc8a1da0806388a8') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" \
    && php composer-setup.php --install-dir=/usr/bin --filename=composer \
    && php -r "unlink('composer-setup.php');"

RUN composer self-update \
    && composer global require "fxp/composer-asset-plugin:~1.3" \
    && composer create-project elgg/starter-project:dev-master . \
    && composer install \
    && composer install # 2nd call is currently required

RUN chgrp -R www-data /var/www/html/ \
    && chmod -R g+w /var/www/html/

RUN mkdir -p /home/elgg/data/ \
    && chgrp -R www-data /home/elgg/data/ \
    && chmod -R g+w /home/elgg/data/