fix(Dockerfile): to resolve build issues

Dockerfile

@@ -5,28 +5,17 @@ ARG RUBY_VER="3.3"
 FROM ruby:$RUBY_VER-alpine AS build-env
 
 # 1a) Packages required to build native extensions + runtime libs
-#    (e.g. if you need xml or postgres in production).
 ARG BUILD_PACKAGES="build-base curl-dev libxml2-dev libxslt-dev zlib-dev libpq-dev yaml-dev git"
-# 1b) Minimal runtime libraries you actually need
-#    (remove anything you do not actually use in production)
 ARG RUNTIME_PACKAGES="tzdata libxml2 libxslt curl zlib libpq yaml"
 
 ENV RAILS_ENV=production \
     RACK_ENV=production \
-    # Exclude dev/test gems so they’re not installed at all
     BUNDLE_WITHOUT=development:test \
     BUNDLE_FROZEN=1 \
-    # Where gems will live in the image
     BUNDLE_PATH=/app/vendor/bundle
 
 RUN apk add --no-cache $BUILD_PACKAGES $RUNTIME_PACKAGES
 
-# Optional: If you do NOT strictly need a correct timezone in production,
-# you can remove tzdata to save a few MB:
-# RUN apk add --no-cache $BUILD_PACKAGES $RUNTIME_PACKAGES && \
-#     apk del tzdata
-
-# Set timezone if needed
 RUN cp /usr/share/zoneinfo/Australia/Sydney /etc/localtime && \
     echo "Australia/Sydney" > /etc/timezone
 
@@ -35,6 +24,9 @@ WORKDIR /app
 # Copy Gemfiles first for layer caching
 COPY Gemfile* ./
 
+# Configure bundler for Nokogiri to use system libraries
+RUN bundle config build.nokogiri --use-system-libraries
+
 # Install bundler (no docs)
 RUN gem install bundler --no-document
 
@@ -44,14 +36,9 @@ RUN bundle install -j2 --retry 3
 # Copy the rest of your Rails code
 COPY . .
 
-# Remove any stale binstubs referencing dev/test gems
 RUN rm -rf bin/*
-
-# Instead of `bundle binstubs bundler`, which triggers dev/test checks,
-# just binstub puma (or skip binstubs entirely and use `bundle exec puma`)
 RUN bundle binstubs puma --force
 
-# Clean up gem caches, .o/.c files, leftover test dirs
 RUN rm -rf vendor/bundle/ruby/3.3.0/cache/*.gem && \
     find vendor/bundle/ruby/3.3.0/gems/ -name "*.c" -delete && \
     find vendor/bundle/ruby/3.3.0/gems/ -name "*.o" -delete && \
@@ -62,44 +49,30 @@ RUN rm -rf vendor/bundle/ruby/3.3.0/cache/*.gem && \
 ##############################
 FROM ruby:$RUBY_VER-alpine
 
-# Keep only the minimal runtime libs you truly need in production
 ARG RUNTIME_PACKAGES="libxml2 libxslt curl zlib libpq yaml tzdata"
 RUN apk add --no-cache $RUNTIME_PACKAGES
 
-# Again, if tzdata is not strictly needed, omit it:
-# RUN apk add --no-cache libxml2 libxslt curl zlib libpq yaml
-
-# Optional: set timezone if you kept tzdata
 RUN cp /usr/share/zoneinfo/Australia/Sydney /etc/localtime && \
     echo "Australia/Sydney" > /etc/timezone
 
 ENV APP_DIR="/app"
 WORKDIR $APP_DIR
 
-# Keep same environment so bundler won't look for dev/test
 ENV RAILS_ENV=production \
     RACK_ENV=production \
     BUNDLE_WITHOUT=development:test \
     BUNDLE_FROZEN=1 \
     BUNDLE_PATH=$APP_DIR/vendor/bundle
 
-# Copy only the fully built app (with installed gems) from builder
 COPY --from=build-env /app /app
 
-# Create non-privileged user
 ARG IMAGE_UID="10001"
 RUN adduser -D -g "" -h "/nonexistent" -s "/sbin/nologin" -H -u "${IMAGE_UID}" appuser && \
     chown -R appuser:appuser $APP_DIR
 
 USER appuser
 EXPOSE 8080
 
-# Healthcheck, optional
 HEALTHCHECK CMD ["wget","--no-verbose","-q","--spider","http://0.0.0.0:8080/auth/authority?health=true"]
 
-# Use `bundle exec puma` if you prefer. 
-# If you *only* generated `bin/puma` (and not `bin/bundle`), then:
 ENTRYPOINT ["./bin/puma", "-b", "tcp://0.0.0.0:8080"]
-
-# Or (if you didn't generate a puma binstub at all) do:
-# ENTRYPOINT ["bundle", "exec", "puma", "-b", "tcp://0.0.0.0:8080"]