Dockerfile

FROM php:7.2.4-fpm-stretch

RUN \
apt-get update && \
apt-get install -y nano git curl msmtp libpq-dev && \
docker-php-ext-configure pgsql -with-pgsql=/usr/local/pgsql && \
docker-php-ext-install pdo pdo_pgsql pgsql

RUN \
apt-get install -y zlib1g-dev && \
docker-php-ext-install zip && \
pecl install xdebug && \
docker-php-ext-enable xdebug && \
#
rm -rf \
  /tmp/* \
  /var/lib/apt/lists/* \
  /var/tmp/*

RUN \
  usermod -u 1000 www-data && \
  groupmod -g 1000 www-data && \
  usermod -d /home/www-data -s /bin/bash www-data

# Install composer system-wide
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer && \
    chmod +x /usr/local/bin/composer && \
    chown www-data:www-data /usr/local/bin/composer

RUN mkdir -p /www

WORKDIR /www