Dockerfile

FROM ubuntu:14.04
MAINTAINER Aristóteles Coutinho <[email protected]>

RUN apt-get update

# Defining the workplace
VOLUME ["/home/ruby/Workspace/Rails"]

# Install ruby dependencies
RUN apt-get install -y wget curl \
    build-essential git git-core \
    zlib1g-dev libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev

RUN apt-get update 

# Install ruby-install
RUN cd /tmp &&\
    wget -O ruby-install-0.5.0.tar.gz https://github.com/postmodern/ruby-install/archive/v0.5.0.tar.gz &&\
    tar -xzvf ruby-install-0.5.0.tar.gz &&\
    cd ruby-install-0.5.0/ &&\
    make install  

# Install MRI Ruby 2.2.2
RUN ruby-install ruby 2.2.2

# Add Ruby binaries to $PATH
ENV PATH /opt/rubies/ruby-2.2.2/bin:$PATH

# Add options to gemrc
RUN echo "gem: --no-document" > ~/.gemrc

# Install bundler
RUN gem install bundler

# Install Rails
RUN gem install --no-rdoc --no-ri rails

# Port
EXPOSE 8080