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https://github.com/maybe-finance/maybe.git
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66 lines
2 KiB
Docker
66 lines
2 KiB
Docker
# syntax = docker/dockerfile:1
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# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
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ARG RUBY_VERSION=3.4.4
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FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim AS base
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# Rails app lives here
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WORKDIR /rails
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# Install base packages
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RUN apt-get update -qq && \
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apt-get install --no-install-recommends -y curl libvips postgresql-client libyaml-0-2
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# Set production environment
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ARG BUILD_COMMIT_SHA
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ENV RAILS_ENV="production" \
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BUNDLE_DEPLOYMENT="1" \
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BUNDLE_PATH="/usr/local/bundle" \
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BUNDLE_WITHOUT="development" \
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BUILD_COMMIT_SHA=${BUILD_COMMIT_SHA}
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# Throw-away build stage to reduce size of final image
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FROM base AS build
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# Install packages needed to build gems
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RUN apt-get install --no-install-recommends -y build-essential libpq-dev git pkg-config libyaml-dev
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# Install application gems
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COPY .ruby-version Gemfile Gemfile.lock ./
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RUN bundle install
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RUN rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git
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RUN bundle exec bootsnap precompile --gemfile -j 0
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# Copy application code
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COPY . .
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# Precompile bootsnap code for faster boot times
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RUN bundle exec bootsnap precompile -j 0 app/ lib/
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# Precompiling assets for production without requiring secret RAILS_MASTER_KEY
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RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
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# Final stage for app image
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FROM base
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# Clean up installation packages to reduce image size
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RUN rm -rf /var/lib/apt/lists /var/cache/apt/archives
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# Copy built artifacts: gems, application
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COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
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COPY --from=build /rails /rails
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# Run and own only the runtime files as a non-root user for security
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RUN groupadd --system --gid 1000 rails && \
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useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash && \
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chown -R rails:rails db log storage tmp
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USER 1000:1000
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# Entrypoint prepares the database.
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ENTRYPOINT ["/rails/bin/docker-entrypoint"]
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# Start the server by default, this can be overwritten at runtime
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EXPOSE 3000
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CMD ["./bin/rails", "server"]
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