# 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 myapp .
# docker run -d -p 80:80 -e RAILS_MASTER_KEY=<value from config/master.key> --name myapp myapp

# 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=3.4.4
FROM docker.io/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"

# Create non-root user early for security and to allow correct permissions in build stage
RUN groupadd --system --gid 1000 rails && \
    useradd --system --uid 1000 --gid 1000 --create-home --shell /bin/bash rails

# Install base packages (runtime only in base image)
RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y curl libjemalloc2 libvips42 mariadb-client && \
    rm -rf /var/lib/apt/lists/*

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

# Install packages needed to build gems and node modules
RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y build-essential git libyaml-dev node-gyp pkg-config python-is-python3 libmariadb-dev && \
    rm -rf /var/lib/apt/lists/*

# Install rails gem in the build stage where build tools are available
RUN gem install rails

# Install JavaScript dependencies
ARG NODE_VERSION=18.19.0
ARG YARN_VERSION=latest
ENV NODE_PATH=/usr/local/node
ENV PATH=/usr/local/node/bin:$PATH
RUN curl -sL https://github.com/nodenv/node-build/archive/master.tar.gz | tar xz -C /tmp/ && \
    /tmp/node-build-master/bin/node-build "${NODE_VERSION}" /usr/local/node && \
    rm -rf /tmp/node-build-master
RUN corepack enable && yarn set version $YARN_VERSION

# Copy dependency files first (better caching)
COPY Gemfile Gemfile.lock ./
RUN bundle config set --local frozen 'true' && \
    bundle install && \
    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
    bundle exec bootsnap precompile --gemfile

# Install node modules
COPY package.json yarn.lock ./
RUN yarn install --immutable && \
    yarn cache clean --all

# 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

# Clean up build-time dependencies and files
RUN rm -rf node_modules tmp/cache

# Final stage for app image
FROM base

# Copy built artifacts: gems and application
COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
COPY --from=build /rails /rails
COPY --from=build /usr/local/node /usr/local/node

# Ensure proper permissions for runtime directories
RUN mkdir -p /rails/db /rails/log /rails/storage /rails/tmp && \
    chown -R rails:rails /rails/db /rails/log /rails/storage /rails/tmp

USER rails

# Configure jemalloc for better memory management
ENV LD_PRELOAD=libjemalloc.so.2

# 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", "-b", "0.0.0.0"]