Run `grunt phpunit` against your project on PHP versions 5.3 through 5.6

Dockerfile

# Run `grunt phpunit` against your project on PHP versions 5.3 through 5.6
# Assumes a Gruntfile.js with working phpunit task
# Based on http://blog.eriksen.com.br/en/docker-image-multi-version-php-development
#
# Copy this Dockerfile into your project. Build the image with:
#
#   docker build -t alexg/php-x-test:1.0 -t alexg/php-x-test:latest .
#
# Run your tests with:
# 
#   docker run -t alexg/php-x-test

FROM eriksencosta/php-dev:latest

MAINTAINER Alexandros Georgiou <alex.georgiou@gmail.com>
LABEL Description="Run `grunt phpunit` against your project on PHP versions 5.3 through 5.6" Version="1.0"

# Adds your project from the current directory.
# Consider excluding `.git` and `node_modules` in your `.dockerignore` file for an even more lightweight container
ADD . /root
WORKDIR /root

# Installs latest node, npm and your grunt dependencies
RUN \
	curl -sL https://deb.nodesource.com/setup | bash - && \
	apt-get install -y nodejs npm && \
	npm install && \
	npm install -g grunt-cli

# This path is needed to run phpenv and phpunit and stuff
ENV PATH /opt/phpenv/shims:/opt/phpenv/bin:/opt/php-build/bin/:/opt/composer/vendor/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

# The command that runs the tests
CMD for ver in 5.6 5.5 5.4 5.3; do phpenv global $ver; grunt phpunit; done