Dockerfile

FROM php:7.0-alpine

# Install git, unzip, bash, and zip extension
RUN apk add --no-cache git unzip bash libzip-dev autoconf g++ make \
    && docker-php-ext-install zip

# Install Xdebug
RUN pecl install xdebug-2.6.1 \
    && docker-php-ext-enable xdebug \
    && echo "xdebug.remote_enable=1" >> /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini \
    && echo "xdebug.remote_autostart=1" >> /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini \
    && echo "xdebug.remote_connect_back=1" >> /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini

# Install Composer
RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" \
    && php composer-setup.php --install-dir=/usr/local/bin --filename=composer \
    && php -r "unlink('composer-setup.php');"

WORKDIR /src