Dockerfile to set up PhantomJS and Node

Dockerfile

FROM ubuntu:12.04

# install phantomjs
ENV PHANTOMJS_VERSION 1.9.7
RUN \
  apt-get update && \
  apt-get upgrade -y && \
  apt-get install -y build-essential curl vim git wget libfreetype6 libfontconfig bzip2 && \
  mkdir -p /srv/var && \
  wget -q --no-check-certificate -O /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 && \
  tar -xjf /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 -C /tmp && \
  rm -f /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 && \
  mv /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64/ /srv/var/phantomjs && \
  ln -s /srv/var/phantomjs/bin/phantomjs /usr/bin/phantomjs && \
  apt-get autoremove -y && \
  apt-get clean all

# install nodejs
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys 7937DFD2AB06298B2293C3187D33FF9D0246406D 114F43EE0176B71C7BC219DD50A3051F888C628D

ENV NODE_VERSION 0.12.4
ENV NPM_VERSION 2.10.1

RUN curl -SLO "http://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.gz" \
	&& curl -SLO "http://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
	&& gpg --verify SHASUMS256.txt.asc \
	&& grep " node-v$NODE_VERSION-linux-x64.tar.gz\$" SHASUMS256.txt.asc | sha256sum -c - \
	&& tar -xzf "node-v$NODE_VERSION-linux-x64.tar.gz" -C /usr/local --strip-components=1 \
	&& rm "node-v$NODE_VERSION-linux-x64.tar.gz" SHASUMS256.txt.asc \
	&& npm install -g npm@"$NPM_VERSION" \
	&& npm cache clear