Introduction to Rego Training

This Rego training teaches attendees Rego's features and functions, including how Rego is used for policy enforcement, the role of queries and decisions, and how to implement policies. Through hands-on labs, students learn how to create, test, and optimize policies, as well as integrate Rego into sample applications.
Course Details


2 days


  • Familiarity with programming concepts (e.g., variables, conditionals, loops)
  • Basic understanding of JSON and data modeling
  • Prior experience with policy enforcement and authorization is a plus but not required

Skills Gained

  • Understand Rego and its significance in policy-based decision-making
  • Dive deeper into Rego's features and functions
  • Explore advanced techniques for modeling policies in Rego
  • Understand how Rego can be integrated into various applications and workflows
Course Outline
  • Introduction to Open Policy Agent (OPA)
    • What is OPA?
    • Why is OPA important?
    • OPA used in different modes
      • Standalone, server, conftest, REPL
      • Playground, VSCode
    • Hands-On Exercise: Installing OPA
  • Rego Language Basics
    • Syntax and structure
    • Scalars, composite values, variables, references
    • Keywords, operators and expressions
    • Hands-On Exercise: Basic Rego Policies
  • Writing Simple Rego Policies
    • Defining rules & policies
    • Negation, Any/All, Non-boolean
    • Basic policy examples
    • Testing policies with sample data
    • Hands-On Exercise: More Policies
  • Policy Enforcement with Rego
    • How Rego is used for policy enforcement
    • The role of queries and decisions
    • Hands-On Exercise: Implementing Policies
  • Advanced Rego Concepts
    • Sets and maps in Rego
    • Comprehensions and iteration
    • Functions, modules, packages
    • Hands-On Exercise: Use of structures & iteration
  • Practical Exercise
    • Participants create more complex policies
    • Use cases: authorization, compliance, resource validation
    • Hands-On Exercise: More complete scenarios
  • Policy Composition
    • Combining multiple policies
    • Policy hierarchy and precedence
  • Error Handling and Debugging
    • Error Handling & fallbacks in Rego
    • Debugging techniques using the Rego debugger
  • Performance Optimization
    • Best practices for profiling & optimizing Rego policies
    • Reducing evaluation latency
  • Integrating OPA with Applications
    • Using Rego to secure API endpoints
    • API authentication and authorization
  • Continuous Integration and Deployment (CI/CD) with Rego
    • Automating policy testing and deployment
    • Writing unit tests for Rego policies.
    • Integration with popular CI/CD tools
  • Case Studies and Use Cases
    • Deploying Rego in Production
    • Real-world examples of Rego usage
    • Customer success stories
  • Conclusion