Terraform Azure Module Development & Refactoring
Master the art of building, managing, and refactoring Terraform modules for Azure to create scalable, maintainable, and automated infrastructure.
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Terraform Module Fundamentals for Azure
Unit 1: Module Concepts and Benefits
Intro to Terraform Modules
Modules & Azure
Module Reusability
Module Abstraction
Module Composition
Unit 2: Creating Basic Azure Modules
Module Structure
Resource Group Module
Virtual Network Module
Storage Account Module
Testing the Modules
Unit 3: Module Inputs, Outputs, and Sources
Defining Input Variables
Defining Output Values
Local Module Sources
Terraform Registry
Module Versioning
Advanced Module Composition Techniques
Unit 1: Dynamic Resource Creation with `for_each`
Intro to `for_each`
`for_each` with Maps
`for_each` with Sets
Complex `for_each` Examples
`for_each` Gotchas
Unit 2: Scaling Infrastructure with `count`
Intro to `count`
`count` Use Cases
`count` and Dependencies
Unit 3: Building Complex Hierarchies with Nested Modules
Intro to Nested Modules
Nested Module Structure
Passing Data to Modules
Nested Module Best Practices
Unit 4: Conditional Logic and Module Dependencies
Conditional Logic Intro
Conditional `count`
Module Dependencies
Versioning and Dependency Management
Unit 1: Semantic Versioning for Terraform Modules
SemVer Intro
SemVer & Terraform
Version Constraints
Versioning Strategies
Unit 2: Publishing and Consuming Modules
Terraform Registry Intro
Publishing to Registry
Private Registries
Consuming Modules
Unit 3: Dependency Management
Module Dependencies
Version Constraints Deep
Dependency Locking
Upgrading Modules
Unit 4: Versioning Strategy Implications
Breaking Changes
Rollback Strategies
Impact on Stability
Refactoring Terraform Code into Modules
Unit 1: Identifying Refactoring Opportunities
Spotting Refactor Targets
Assessing Code Complexity
Dependency Analysis
Unit 2: Module Design Best Practices
Single Responsibility
Defining Clear Interfaces
Abstraction Levels
Idempotency Matters
Unit 3: Extracting Configurations
Variables are Key
Outputs for Data Sharing
Leveraging Data Sources
Input Validation
Unit 4: Migrating to Modules
Planning the Migration
State Management
Testing the Modules
Zero Downtime
Testing Terraform Modules with Terratest
Unit 1: Terratest Fundamentals
Intro to Terratest
Setting Up Terratest
Writing Your First Test
Understanding Test Struct
Clean Up Resources
Unit 2: Unit Testing Terraform Modules
Unit Test Strategy
Testing Resource Creation
Testing Resource Updates
Testing Resource Deletion
Testing w/ Azure SDK
Unit 3: Integration Testing Terraform Modules
Integration Test Strategy
Testing Module Interactions
Mocking and Stubbing
Testing Data Sources
Automated Testing
CI/CD Pipelines for Terraform Modules
Unit 1: CI/CD Pipeline Fundamentals
Intro to CI/CD
Choosing a CI/CD Tool
Pipeline Configuration
Authentication
Terraform Setup
Unit 2: Automating Module Testing
Unit Testing
Integration Testing
Static Analysis
Test Infrastructure
Parallel Testing
Unit 3: Automating Module Publishing and Versioning
Semantic Versioning
Publishing to Registry
Private Registry
Tagging
Release Notes
Advanced Module Design Patterns for Azure
Unit 1: Factory Pattern in Azure Modules
Intro to Factory Pattern
Simple Factory Example
Abstract Factory Pattern
Factory Pattern Benefits
Factory Pattern Tradeoffs
Unit 2: Wrapper Pattern for Azure Modules
Intro to Wrapper Pattern
Wrapper Module Example
Customizing Wrapper Modules
Wrapper Pattern Benefits
Wrapper Pattern Tradeoffs
Unit 3: Environment-Aware Modules & Data Sources
Env-Aware Modules Intro
Using Terraform Workspaces
Dynamic Data with Data Sources
Custom Data Sources
Environment Variables
Module Security and Compliance
Unit 1: Security Fundamentals in Terraform Modules
Security Mindset
Secrets Management 101
Least Privilege Principle
Input Validation
Unit 2: Security Scanning and Compliance
Static Code Analysis
Dynamic Analysis
Compliance Standards
Policy Enforcement
Unit 3: Advanced Security Techniques
Secure Bootstrapping
Network Security
Data Protection
Identity Management
Unit 4: Auditing and Logging
Centralized Logging
Audit Trail
Alerting and Monitoring