Day 1: Performance Optimization in Ruby on Rails

Session 1: Profiling and Identifying Bottlenecks

• Understanding performance bottlenecks in Rails applications
• Using benchmarking and profiling tools (Rack Mini Profiler, New Relic, Skylight, etc.)
• Identifying slow database queries and expensive view rendering

Session 2: Optimizing Rails Application Performance

• Improving server response times and reducing memory consumption
• Using Eager Loading (includes) and Query Caching for faster Active Record queries
• Managing background jobs with Sidekiq, Resque, or Delayed Job

Session 3: Hands-on Lab – Identifying and Fixing Performance Bottlenecks

• Running performance profiling tools on a Rails application
• Optimizing Active Record queries and implementing caching strategies

Day 2: Caching Strategies for High-Performance Rails Applications

Session 1: Implementing Caching in Rails

• Understanding Rails caching mechanisms (page, action, fragment caching)
• Using Rails.cache with Memcached or Redis for high-speed data storage
• Caching frequent database queries and API responses

Session 2: Advanced Caching Techniques

• Implementing low-level caching with ActiveSupport::Cache
• Using HTTP caching, ETags, and conditional GET requests
• Configuring Rails caching strategies for multi-server environments

Session 3: Hands-on Lab – Implementing Caching for Improved Performance

• Setting up Redis or Memcached for caching in Rails
• Configuring Rails fragment caching and cache expiration strategies

Day 3: Security Best Practices for Rails Applications

Session 1: Securing Rails Applications Against Common Vulnerabilities

• Understanding OWASP Top 10 security risks for web applications
• Preventing SQL Injection, Cross-Site Scripting (XSS), and CSRF attacks
• Implementing security headers and content security policies (CSP)

Session 2: Authentication, Authorization, and Role-Based Access Control (RBAC)

• Implementing secure authentication with Devise and OmniAuth
• Managing user permissions with Pundit or CanCanCan
• Securing API authentication using JWT and OAuth2

Session 3: Hands-on Lab – Securing a Rails Application

• Implementing Devise for secure user authentication
• Adding role-based access control using Pundit or CanCanCan

Day 4: Scaling, Deploying, and Monitoring Rails Applications

Session 1: Scaling Rails Applications for High Traffic

• Load balancing with NGINX, Puma, and Unicorn
• Optimizing Rails applications for multi-threading and concurrency
• Using Docker and Kubernetes for scalable Rails deployment

Session 2: Deploying and Monitoring Rails Applications in Production

• Deploying Rails applications on AWS, Heroku, or DigitalOcean
• Implementing CI/CD pipelines with GitHub Actions or GitLab CI/CD
• Monitoring performance and error tracking using Sentry, New Relic, and Logstash

Session 3: Hands-on Lab – Deploying and Monitoring a Scalable Rails Application

• Deploying a Rails application with Docker and Kubernetes
• Setting up real-time application monitoring and logging