Variables and Configuration Management

Comprehensive guide to Terraform variables and configuration management aligned with Terraform Associate 004 exam objectives. Learn to create flexible, reusable configurations using variables, outputs, local values, and advanced validation patterns.

You'll learn to:

• Define and use input variables with different data types
• Organize variables and outputs in separate files
• Use terraform.tfvars and auto.tfvars files for variable assignment
• Handle sensitive variables and outputs securely
• Implement variable validation including cross-variable validation (Terraform 1.9+)
• Understand variable precedence and override behavior
• Work with local values for computed expressions
• Apply modern Terraform 1.14.3 best practices