Align Dockerfile to new Koalagator Dockerfile

Author: evolve2k

Dockerfile

@@ -2,65 +2,57 @@
 
 # Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
 ARG RUBY_VERSION=3.3.7
-FROM ruby:$RUBY_VERSION-slim as base
-
-LABEL fly_launch_runtime="rails"
+FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base
 
 # Rails app lives here
 WORKDIR /rails
 
 # Set production environment
 ENV RAILS_ENV="production" \
-    BUNDLE_WITHOUT="development:test" \
-    BUNDLE_DEPLOYMENT="1"
-
-# Update gems and bundler
-RUN gem update --system --no-document && \
-    gem install -N bundler
+    BUNDLE_DEPLOYMENT="1" \
+    BUNDLE_PATH="/usr/local/bundle" \
+    BUNDLE_WITHOUT="development"
 
 
 # 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 libpq-dev libyaml pkg-config git
+    apt-get install --no-install-recommends -y build-essential git libvips pkg-config
 
 # Install application gems
-COPY --link Gemfile Gemfile.lock ./
+COPY Gemfile Gemfile.lock ./
 RUN bundle install && \
-    bundle exec bootsnap precompile --gemfile && \
-    rm -rf ~/.bundle/ $BUNDLE_PATH/ruby/*/cache $BUNDLE_PATH/ruby/*/bundler/gems/*/.git
+    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
+    bundle exec bootsnap precompile --gemfile
 
 # Copy application code
-COPY --link . .
+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 ./bin/rails assets:precompile
+RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
 
 
 # Final stage for app image
 FROM base
 
 # Install packages needed for deployment
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y libsqlite3-0 postgresql-client && \
+    apt-get install --no-install-recommends -y curl libsqlite3-0 libvips && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
-# Run and own the application files as a non-root user for security
-RUN useradd rails --home /rails --shell /bin/bash
-USER rails:rails
-
 # Copy built artifacts: gems, application
 COPY --from=build /usr/local/bundle /usr/local/bundle
-COPY --from=build --chown=rails:rails /rails /rails
+COPY --from=build /rails /rails
 
-# Deployment options
-ENV RAILS_LOG_TO_STDOUT="1" \
-    RAILS_SERVE_STATIC_FILES="true"
+# Run and own only the runtime files as a non-root user for security
+RUN useradd rails --create-home --shell /bin/bash && \
+    chown -R rails:rails db log storage tmp
+USER rails:rails
 
 # Entrypoint prepares the database.
 ENTRYPOINT ["/rails/bin/docker-entrypoint"]