| 1234567891011121314151617181920212223242526272829 | FROM ruby:3.5-rcRUN apt-get update -yqq && apt-get install -yqq --no-install-recommends redis-serverEXPOSE 8080WORKDIR /rails# ENV RUBY_YJIT_ENABLE=1 YJIT is enabled in config/initializers/enable_yjit.rb# Use JemallocRUN apt-get update && \    apt-get install -y --no-install-recommends libjemalloc2ENV LD_PRELOAD=libjemalloc.so.2COPY ./Gemfile* /rails/ENV BUNDLE_FORCE_RUBY_PLATFORM=trueENV BUNDLE_WITH=mysql:pumaRUN bundle install --jobs=8COPY . /rails/ENV WEB_CONCURRENCY=autoENV RAILS_MAX_THREADS=5ENV RAILS_ENV=production_mysqlENV PORT=8080ENV REDIS_URL=redis://localhost:6379/0CMD service redis-server start && \    bin/rails server
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