Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- # syntax=docker/dockerfile:1
- # check=error=true
- # Make sure RUBY_VERSION matches the Ruby version in .ruby-version
- ARG RUBY_VERSION=3.0.5
- FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
- # Rails app lives here
- WORKDIR /rails
- # Install base packages
- RUN apt-get update -qq && \
- apt-get install --no-install-recommends -y curl libjemalloc2 libvips libpq-dev && \
- rm -rf /var/lib/apt/lists /var/cache/apt/archives
- # Set production environment
- ENV RAILS_ENV="production" \
- BUNDLE_DEPLOYMENT="1" \
- BUNDLE_PATH="/usr/local/bundle" \
- BUNDLE_WITHOUT="development"
- # Throw-away build stage to reduce size of final image
- FROM base AS build
- # Install packages needed to build gems
- RUN apt-get update -qq && \
- apt-get install --no-install-recommends -y build-essential git libyaml-dev pkg-config && \
- rm -rf /var/lib/apt/lists /var/cache/apt/archives
- # Install application gems
- COPY Gemfile Gemfile.lock ./
- RUN gem install bundler:2.4.19 && \
- bundle install && \
- rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
- bundle exec bootsnap precompile --gemfile
- # Copy application code
- COPY . .
- # Final stage for app image
- FROM base
- # Copy built artifacts: gems, application
- COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
- COPY --from=build /rails /rails
- # Run and own only the runtime files as a non-root user for security
- RUN groupadd --system --gid 1000 rails && \
- useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash && \
- chown -R rails:rails db log storage tmp
- USER 1000:1000
- # Entrypoint prepares the database.
- ENTRYPOINT ["/rails/bin/docker-entrypoint"]
Advertisement
Add Comment
Please, Sign In to add comment