FROM php:5.6-cli
RUN apt update && \
apt -qy install git unzip zlib1g-dev && \
docker-php-ext-install bcmath sockets pcntl zip
WORKDIR /src
RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" && \
php composer-setup.php && \
php -r "unlink('composer-setup.php');" && \
mv composer.phar /usr/local/bin/composer