Dockerfile
# How to use it
# =============
#
# Visit https://blog.zedroot.org/2015/04/30/using-docker-to-maintain-a-ruby-gem/
# ~~~~ Image base ~~~~
# Base image with the latest Ruby only
FROM ruby:2.5.1-slim
LABEL maintainer="Guillaume Hain zedtux@zedroot.org"
# ~~~~ Set up the environment ~~~~
ENV DEBIAN_FRONTEND noninteractive
RUN mkdir -p /gem/
WORKDIR /gem/
ADD . /gem/
# ~~~~ OS Maintenance & Rails Preparation ~~~~
# Rubygems and Bundler
RUN apt-get update && \
apt-get install -y git build-essential unzip && \
touch ~/.gemrc && \
echo "gem: --no-ri --no-rdoc" >> ~/.gemrc && \
gem install rubygems-update && \
update_rubygems && \
gem install bundler && \
bundle install && \
apt-get remove --purge -y build-essential && \
apt-get autoclean -y && \
apt-get clean
# Import the gem source code
VOLUME .:/gem/
ENTRYPOINT ["bundle", "exec"]
CMD ["rake", "-T"]