Upgrade Rails application to Ruby 3.4.1 and Rails 8.0.4 #582
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This PR upgrades the Judge0 Rails application from the end-of-life Ruby 2.7.0 to Ruby 3.4.1, and from Rails 6.1 to Rails 8.0.4. Key changes: - Ruby 3.4.1 compiled from source in Dockerfile (compilers base image unchanged) - Rails 8.0.4 with updated gem dependencies - Compatibility layer for Rails.application.secrets (removed in Rails 7.1+) - Fixed deprecated Redis gem options - Removed annotate gem (incompatible with Rails 8) - Added Debian Buster archive repository fix User code submissions still use Ruby 2.7.0 from the compilers base image. All API endpoints tested and working.
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Judge0 Rails 8.0 Upgrade
Overview
This PR upgrades the Judge0 Rails application from Ruby 2.7.0 + Rails 6.1 to Ruby 3.4.1 + Rails 8.0.4.
Architecture Decision
Ruby 3.4 is installed directly in the judge0 Dockerfile, separate from the compilers base image.
The
judge0/compilers:1.4.0base image was intentionally left unchanged.Version Summary
Changes Made
Dockerfile
bundle config set force_ruby_platform truefor native gem compilationGemfile
~> 8.0.0annotategem (incompatible with Rails 8)config/application.rb
config.load_defaults 8.0config/puma.rb
ENV.fetchto prevent crashesconfig/initializers/resque.rb
thread_safe: trueoption (deprecated in Redis gem 5.x)config/initializers/secrets.rb (NEW)
Rails.application.secrets(removed in Rails 7.1+)docker-compose.dev.yml
env_fileanddepends_onto judge0 serviceDeleted Files
lib/tasks/auto_annotate_models.rake- Referenced removed gemBreaking Changes Addressed
Testing
Verified locally with Docker:
GET /languages- 200 OK (48 languages)GET /about- 200 OK (version 1.13.1)Build Notes
First build takes ~12 minutes due to Ruby compilation. Subsequent builds use cached layers.