Optimize Dockerfile.production for better performance and security

- Fixed libvips package name from libvips-16t64 to libvips42 for proper installation
- Moved gem install rails to build stage where build tools are available
- Changed to ruby slim base image for smaller final image size
- Improved layer caching by organizing dependency installation
- Enhanced security with non-root user
- Added jemalloc configuration for better memory management
- Cleaned up build artifacts to reduce image size

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

Dockerfile.production

@@ -0,0 +1,99 @@
+# 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"]