# syntax = docker/dockerfile:1 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile ARG RUBY_VERSION=3.3.3 #FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base FROM registry.docker.com/library/ruby:$RUBY_VERSION-alpine3.20 as base # Rails app lives here WORKDIR /rails # Set production environment ENV RAILS_ENV="production" \ BUNDLE_DEPLOYMENT="1" \ BUNDLE_PATH="/usr/local/bundle" \ BUNDLE_WITHOUT="development" # Throw-away build stage to reduce size of final image FROM base as build # Install packages needed to build gems #RUN apt-get update -qq && \ # apt-get install --no-install-recommends -y build-essential git libpq-dev libvips pkg-config RUN apk add --update --no-cache build-base git vips postgresql-libs postgresql-dev tzdata # Install application gems COPY Gemfile Gemfile.lock ./ RUN bundle install && \ rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \ bundle exec bootsnap precompile --gemfile && echo BLAAAAHHHH # Copy application code COPY . . # Precompile bootsnap code for faster boot times RUN bundle exec bootsnap precompile app/ lib/ # Final stage for app image FROM base # Install packages needed for deployment #RUN apt-get update -qq && \ # apt-get install --no-install-recommends -y curl libvips postgresql-client && \ # rm -rf /var/lib/apt/lists /var/cache/apt/archives RUN apk add --update --no-cache curl vips postgresql-client # Copy built artifacts: gems, application COPY --from=build /usr/local/bundle /usr/local/bundle COPY --from=build /rails /rails # Run and own only the runtime files as a non-root user for security #RUN useradd rails --create-home --shell /bin/bash && \ RUN adduser rails --disabled-password --shell /bin/ash && \ chown -R rails:rails db log storage tmp USER rails:rails # Entrypoint prepares the database. ENTRYPOINT ["/rails/bin/docker-entrypoint"] # Start the server by default, this can be overwritten at runtime EXPOSE 3000 CMD ["./bin/rails", "server"]