Dockerfile for creating ghost containers

Dockerfile

#Which base image to build FROM?
FROM ubuntu
#What to RUN for the new build?

#Adding apt tools
RUN apt-get install -y python-software-properties

#Adding the nodejs ppa's
RUN add-apt-repository -y ppa:chris-lea/node.js
#001: Fixing broken dependencies.
#nodejs : Depends: rlwrap but it is not installable
#E: Unable to correct problems, you have held broken packages.
#Error build: The command [/bin/sh -c apt-get install -y nodejs unzip] returned a non-zero code: 100
#The command [/bin/sh -c apt-get install -y nodejs unzip] returned a non-zero code: 100
RUN echo "deb http://archive.ubuntu.com/ubuntu precise universe" >> /etc/apt/sources.list

#Update apt source repositories
RUN apt-get update -y

#Install nodejs and unzip
RUN apt-get install -y nodejs unzip

#Download ghost platform, extract and install
ADD https://en.ghost.org/zip/ghost-0.3.2.zip /opt/ghost-0.3.2.zip
RUN unzip /opt/ghost-0.3.2.zip -d /opt/ghost
RUN cd /opt/ghost && npm install --production

#Configure ghost to listen on all ports.
ADD https://gist.github.com/samof76/6987383/raw/3944ffae51de720e3ad5ef8f3a3e74d05bb9cdf5/config.js /opt/ghost/config.js

#Chage the working directory to ghost
WORKDIR /opt/ghost

#EXPOSE ghost to the outside world
EXPOSE 2368

#Set ENTRYPONT to the container
ENTRYPOINT ["/usr/bin/npm","start"]