Dockerfile

FROM php:7.0-cli

COPY . /usr/src/concourse-php
WORKDIR /usr/src/concourse-php

# Packages
RUN apt-get update
RUN apt-get install -y --allow-unauthenticated zip

# Install Composer
RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
RUN php -r "if (hash_file('SHA384', 'composer-setup.php') === '669656bab3166a7aff8a7506b8cb2d1c292f042046c5a994c43155c0be6190fa0355160742ab2e1c88d40d5be660b410') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
RUN php composer-setup.php --quiet
RUN php -r "unlink('composer-setup.php');"
RUN mv composer.phar /usr/local/bin/composer
RUN composer install

CMD [ "php", "./index.php" ]