68 lines
1.9 KiB
Docker
68 lines
1.9 KiB
Docker
|
# syntax = docker/dockerfile:1
|
||
|
|
|
||
|
|
# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
|
||
|
|
ARG RUBY_VERSION=3.3.4
|
||
|
|
FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base
|
||
|
|
|
||
|
|
# Rails app lives here
|
||
|
|
WORKDIR /rails
|
||
|
|
|
||
|
|
# Set production environment
|
||
|
|
ENV RAILS_ENV="production" \
|
||
|
|
BUNDLE_DEPLOYMENT="1" \
|
||
|
|
BUNDLE_PATH="/usr/local/bundle" \
|
||
|
|
BUNDLE_WITHOUT="development"
|
||
|
|
|
||
|
|
|
||
|
|
# Throw-away build stage to reduce size of final image
|
||
|
|
FROM base as build
|
||
|
|
|
||
|
|
# Install packages needed to build gems
|
||
|
|
RUN apt-get update -qq && \
|
||
|
|
apt-get install --no-install-recommends -y build-essential git pkg-config
|
||
|
|
|
||
|
|
# Install application gems
|
||
|
|
COPY Gemfile Gemfile.lock ./
|
||
|
|
RUN bundle install && \
|
||
|
|
rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
|
||
|
|
bundle exec bootsnap precompile --gemfile
|
||
|
|
|
||
|
|
# Copy application code
|
||
|
|
COPY . .
|
||
|
|
|
||
|
|
# Precompile bootsnap code for faster boot times
|
||
|
|
RUN bundle exec bootsnap precompile app/ lib/
|
||
|
|
|
||
|
|
# Adjust binfiles to be executable on Linux
|
||
|
|
RUN chmod +x bin/* && \
|
||
|
|
sed -i "s/\r$//g" bin/* && \
|
||
|
|
sed -i 's/ruby\.exe$/ruby/' bin/*
|
||
|
|
|
||
|
|
# Precompiling assets for production without requiring secret RAILS_MASTER_KEY
|
||
|
|
RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
|
||
|
|
|
||
|
|
|
||
|
|
# 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 libsqlite3-0 && \
|
||
|
|
rm -rf /var/lib/apt/lists /var/cache/apt/archives
|
||
|
|
|
||
|
|
# 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 && \
|
||
|
|
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"]
|