# syntax=docker/dockerfile:1
# check=error=true

# This Dockerfile is designed for production, not development. Use with Kamal or build'n'run by hand:
# docker build -t sessy .
# docker run -d -p 80:80 -e RAILS_MASTER_KEY=<value from config/master.key> --name sessy sessy

# For a containerized dev environment, see Dev Containers: https://guides.rubyonrails.org/getting_started_with_devcontainer.html

# Make sure RUBY_VERSION matches the Ruby version in .ruby-version
ARG RUBY_VERSION=3.4.12
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 libsqlite3-0 sqlite3 libvips postgresql-client && \
    ln -s /usr/lib/$(uname -m)-linux-gnu/libjemalloc.so.2 /usr/local/lib/libjemalloc.so && \
    rm -rf /var/lib/apt/lists /var/cache/apt/archives

# Build with --build-arg BUNDLE_GEMFILE=Gemfile.saas for the hosted edition;
# the default produces the pure open-source image.
ARG BUNDLE_GEMFILE=Gemfile

# Set production environment variables and enable jemalloc for reduced memory usage and latency.
ENV RAILS_ENV="production" \
    BUNDLE_GEMFILE=$BUNDLE_GEMFILE \
    BUNDLE_DEPLOYMENT="1" \
    BUNDLE_PATH="/usr/local/bundle" \
    BUNDLE_WITHOUT="development" \
    LD_PRELOAD="/usr/local/lib/libjemalloc.so"

# 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 libpq-dev libyaml-dev pkg-config && \
    rm -rf /var/lib/apt/lists /var/cache/apt/archives

# Install application gems. The sessy-saas path gem must be present before
# bundle install; a separate COPY keeps the directory (multi-source COPY
# into ./ would flatten its contents).
COPY Gemfile Gemfile.lock Gemfile.saas Gemfile.saas.lock vendor ./
COPY saas saas/

RUN bundle install && \
    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
    # -j 1 disable parallel compilation to avoid a QEMU bug: https://github.com/rails/bootsnap/issues/495
    bundle exec bootsnap precompile -j 1 --gemfile

# Copy application code
COPY . .

# The open-source image ships without the hosted-edition engine; only the
# Gemfile.saas build keeps it.
RUN if [ "$BUNDLE_GEMFILE" = "Gemfile" ]; then rm -rf saas Gemfile.saas Gemfile.saas.lock; fi

# Precompile bootsnap code for faster boot times.
# -j 1 disable parallel compilation to avoid a QEMU bug: https://github.com/rails/bootsnap/issues/495
RUN bundle exec bootsnap precompile -j 1 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

# ONCE backup hooks (must be at /hooks/ for ONCE compatibility)
COPY --from=build /rails/bin/once-pre-backup /hooks/pre-backup
COPY --from=build /rails/bin/once-post-restore /hooks/post-restore

# 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

# Copy built artifacts: gems, application
COPY --chown=rails:rails --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
COPY --chown=rails:rails --from=build /rails /rails

# Bake the source revision so self-hosted installs can detect when they are
# behind upstream (see UpdateCheck). Empty when building locally without args.
# Written while still root: /rails itself is owned by root (created by
# WORKDIR in the base stage), so the rails user can't add files to it.
ARG GIT_SHA=
ARG GIT_COMMITTED_AT=
ENV SESSY_GIT_SHA=$GIT_SHA \
    SESSY_GIT_COMMITTED_AT=$GIT_COMMITTED_AT
RUN printf '%s' "$GIT_SHA" > /rails/REVISION && \
    printf '%s' "$GIT_COMMITTED_AT" > /rails/COMMITTED_AT

USER 1000:1000

# Entrypoint prepares the database.
ENTRYPOINT ["/rails/bin/docker-entrypoint"]

# Start server via Thruster by default, this can be overwritten at runtime
EXPOSE 80
CMD ["./bin/thrust", "./bin/rails", "server"]