Dockerfile

FROM php:7.0.19-alpine

MAINTAINER herloct <herloct@gmail.com>

ENV COMPOSER_VERSION=1.4.2 \
    COMPOSER_HOME=/composer \
    PATH=$COMPOSER_HOME/vendor/bin:$PATH

COPY install-composer.sh /usr/local/bin/install-composer.sh

RUN apk update --no-cache \
    && apk add --no-cache \
        curl \
        git \
        mercurial \
        openssh \
        openssl \
        subversion \

    && mkdir -p $COMPOSER_HOME \
    && ( \
        cd /tmp \
        && install-composer.sh \
        && rm /usr/local/bin/install-composer.sh \
    ) \

    && export COMPOSER_ALLOW_SUPERUSER=1 \
    && composer global require -a --prefer-dist "hirak/prestissimo:^0.3" \
    && export COMPOSER_ALLOW_SUPERUSER=0 \

    && chmod -R 0777 $COMPOSER_HOME/cache \

    && rm -rf /var/cache/apk/* /var/tmp/* /tmp/* $COMPOSER_HOME/cache/*

VOLUME ["/project", "$COMPOSER_HOME/cache"]
WORKDIR /project

ENTRYPOINT ["composer"]
CMD ["--version"]