FROM ruby:3.0 RUN apt-get update -qq && apt-get install -y build-essential tmux RUN mkdir /runbook WORKDIR /runbook RUN mkdir /runbook/bin ADD bin/setup /runbook/bin/setup ADD runbook.gemspec /runbook/runbook.gemspec ADD Gemfile /runbook/Gemfile RUN mkdir -p /runbook/lib/runbook ADD lib/runbook/version.rb /runbook/lib/runbook/version.rb RUN bin/setup ADD . /runbook