CI/CD Pipeline

Rails CI/CD Pipelines — Deploy with the Confidence Your Test Suite Promises

Ruby on Rails applications are feature-rich but deployment-complex. Asset precompilation, database migrations, background job workers, and the infamous Bootsnap cache all affect how your app starts and runs in production. We build CI/CD pipelines that handle Rails's full deployment lifecycle so you can ship features, not fight infrastructure.

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Why Ruby on Rails Needs a Proper CI/CD Pipeline

Rails apps have a notoriously complex deployment checklist: run database migrations, precompile assets, restart Puma or Sidekiq workers, clear caches, and verify that background jobs are processing. Missing any step can result in broken stylesheets, failed jobs, or data inconsistencies.

RSpec test suites for mature Rails applications can take 30+ minutes to run sequentially. Without parallelization across CI workers, your pipeline becomes a bottleneck that discourages running the full suite on every commit. Flaky tests from shared database state make things worse.

Ruby's Bundler gem management, combined with native extensions like nokogiri, pg, and sassc, makes dependency installation slow and fragile. A single system library version mismatch between your CI environment and production can cause segfaults that only appear after deployment.

Our Ruby on Rails CI/CD Implementation

We cache the vendor/bundle directory with a key based on Gemfile.lock and the Ruby version. System dependencies for native gems are installed in the Docker build stage and matched exactly between CI and production images. We use bundle config set --local deployment true in CI to mirror production behavior.

RSpec tests run across parallel CI workers using parallel_tests or Knapsack Pro for dynamic test splitting based on historical run times. Each worker gets its own database via DATABASE_URL environment variable, preventing shared state issues. We configure --format documentation --format RspecJunitFormatter for both human-readable output and CI dashboard integration.

The Docker build precompiles assets in the build stage with SECRET_KEY_BASE=dummy (assets do not need the real key). The production image uses ruby:3.3-slim and includes only runtime dependencies. Database migrations run as a Kubernetes init container or a pre-deploy hook, with automatic rollback if they fail. Sidekiq workers are deployed as a separate container from the same image with a different entrypoint.

What You Get

A Rails-specific CI/CD pipeline:

  • Bundle caching — gem installation cached with native extension handling
  • Parallel RSpec — test suite split across workers, running in under 5 minutes
  • Asset precompilation — built once in CI, shared across all deployment targets
  • Database migrations — automated pre-deploy with rollback on failure
  • Background workers — Sidekiq/GoodJob deployed from the same image
  • Security scanning — Brakeman and bundler-audit integrated into the pipeline
  • Production Docker image — slim Ruby base, non-root user, under 250 MB

Why Anubiz Engineering

100% async — no calls, no meetings
Delivered in days, not weeks
Full documentation included
Production-grade from day one
Security-first approach
Post-delivery support included

Ready to get started?

Skip the research. Tell us what you need, and we'll scope it, implement it, and hand it back — fully documented and production-ready.

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