Dockerfile

FROM ubuntu:18.04

MAINTAINER Christopher Guess <cguess@gmail.com> <@cguess>

RUN apt-get update && apt-get install -y \
  build-essential \
  libxml2-dev \
  libxslt1-dev \
  zlib1g-dev \
  libsqlite3-dev \
  nodejs \
  openssl \
  curl \
  gnupg2

RUN set -ex \
  && for key in \
    409B6B1796C275462A1703113804BB82D39DC0E3 \
    7D2BAF1CF37B13E2069D6956105BD0E739499BDB \
  ; do \
    gpg --keyserver hkp://keys.gnupg.net --recv-keys "$key" || \
    gpg --keyserver pgp.mit.edu --recv-keys "$key" || \
    gpg --keyserver keyserver.pgp.com --recv-keys "$key" || \
    gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key" ; \
  done

RUN \curl -sSL https://get.rvm.io | bash -s stable

RUN /bin/bash -l -c "rvm requirements"
RUN /bin/bash -l -c "rvm install 2.5.1"
RUN /bin/bash -l -c "gem install bundler --no-ri --no-rdoc"

RUN apt-get install -y python python-dev python-pip python-virtualenv
RUN rm -rf /var/lib/apt/lists/*

ENTRYPOINT ["/bin/bash", "-l", "-c"]