# syntax = docker/dockerfile:1

# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
ARG RUBY_VERSION=3.3.0
FROM ruby:$RUBY_VERSION-slim as base

# The plug-app code lives here
WORKDIR /plug-app

# Set production environment
ARG RAILS_ENV="production"
ENV RAILS_ENV=${RAILS_ENV} \
  BUNDLE_WITHOUT="staging:development:test" \
  BUNDLE_DEPLOYMENT="1"

# Update gems and bundler
RUN gem update --system --no-document && \
  gem install -N bundler


# Throw-away build stages to reduce size of final image
FROM base as prebuild

# Install packages needed to build gems
RUN --mount=type=cache,id=dev-apt-cache,sharing=locked,target=/var/cache/apt \
  --mount=type=cache,id=dev-apt-lib,sharing=locked,target=/var/lib/apt \
  apt-get update -qq && \
  apt-get install --no-install-recommends -y build-essential curl git libpq-dev libvips pkg-config python-is-python3 ca-certificates iptables iproute2


FROM prebuild as build

# Install application gems
COPY --link Gemfile Gemfile.lock .ruby-version ./
RUN --mount=type=cache,id=bld-gem-cache,sharing=locked,target=/srv/vendor \
  bundle config set app_config .bundle && \
  bundle config set path /srv/vendor && \
  bundle install && \
  bundle exec bootsnap precompile --gemfile && \
  bundle clean && \
  mkdir -p vendor && \
  bundle config set path vendor && \
  cp -ar /srv/vendor .

# Copy application code
COPY --link . .

# Precompile bootsnap code for faster boot times
RUN bundle exec bootsnap precompile app/ lib/

# Adjust binfiles to set current working directory
RUN grep -l '#!/usr/bin/env ruby' /plug-app/bin/* | xargs sed -i '/^#!/aDir.chdir File.expand_path("..", __dir__)'

# Final stage for app image
FROM base

# Install packages needed for deployment
RUN --mount=type=cache,id=dev-apt-cache,sharing=locked,target=/var/cache/apt \
  --mount=type=cache,id=dev-apt-lib,sharing=locked,target=/var/lib/apt \
  apt-get update -qq && \
  apt-get install --no-install-recommends -y imagemagick libvips postgresql-client sudo git

# Copy built artifacts: gems, application
COPY --from=build /usr/local/bundle /usr/local/bundle
COPY --from=build /plug-app /plug-app

# Deployment options
ENV RAILS_LOG_TO_STDOUT="1" \
  RAILS_SERVE_STATIC_FILES="true" \
  RUBY_YJIT_ENABLE="1" \
  LD_PRELOAD=${LD_PRELOAD_PATH} \
  MALLOC_CONF="dirty_decay_ms:1000,narenas:2,background_thread:true"

# Entrypoint sets up the container.
ENTRYPOINT ["/plug-app/bin/docker-entrypoint"]

# Start the server by default, this can be overwritten at runtime
EXPOSE 3000
CMD ["./bin/rails", "server"]