#================== # Ruby dependencies # Install rvm RUN apt-get update && apt-get install -y gnupg2 RUN gpg2 --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB RUN \curl -sSL https://get.rvm.io | bash -s stable # Install Ruby 2.5 RUN /bin/bash -l -c "rvm install ruby-2.5" RUN /bin/bash -l -c "rvm use --default ruby-2.5" RUN /bin/bash -l -c "echo 'gem: --no-document' > ~/.gemrc" RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc" RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.5' >> ~/.bashrc" RUN /bin/bash -l -c "gem install bundler --no-document -v 1.9"