# syntax = docker/dockerfile:1

# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
ARG RUBY_VERSION=3.4.3
FROM ghcr.io/surnet/alpine-wkhtmltopdf:3.22.0-024b2b2-full as wkhtmltopdf
FROM ruby:${RUBY_VERSION}-alpine3.21 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"

# Install runtime dependencies
RUN apk update && \
    apk add --no-cache nodejs

COPY --from=wkhtmltopdf /bin/wkhtmltopdf /bin/

# Throw-away build stage to reduce size of final image
FROM base AS build

# Install packages needed to build gems
RUN apk update && \
    apk add --no-cache \
        build-base \
        git \
        postgresql-dev \
        vips-dev \
        pkgconfig \
        yaml-dev

# 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/

# 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 apk update && \
    apk add --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 adduser -D -h /home/rails rails && \
    chown -R rails:rails db log storage tmp || true
USER 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"]