ARG RUBY_VERSION=2.7.4 FROM ruby:$RUBY_VERSION-slim RUN apt-get update \ && apt-get install -y \ build-essential \ git \ locales \ nodejs COPY Gemfile Gemfile RUN NOKOGIRI_USE_SYSTEM_LIBRARIES=true bundle install RUN \ echo "en_US UTF-8" > /etc/locale.gen && \ locale-gen en-US.UTF-8 ENV LANG en_US.UTF-8 ENV LANGUAGE en_US.UTF-8 ENV LC_ALL en_US.UTF-8 COPY entrypoint.sh /entrypoint.sh ENTRYPOINT ["/entrypoint.sh"]