Infrastructure as Code (IaC) treats infrastructure like software: versioned, tested, and repeatable. Terraform is the leading tool for declarative infrastructure management across cloud providers.
Core Concepts
Declarative vs Imperative
Loading code block...
Providers
Loading code block...
Resources and Data Sources
Loading code block...
Variables and Outputs
Input Variables
Loading code block...
Outputs
Loading code block...
State Management
Remote State
Loading code block...
State Commands
Loading code block...
Modules
Creating a Module
Loading code block...
Using Modules
Loading code block...
Workspaces
Loading code block...
Loading code block...
Best Practices
Project Structure
infrastructure/
├── environments/
│ ├── development/
│ │ ├── main.tf
│ │ ├── variables.tf
│ │ └── terraform.tfvars
│ ├── staging/
│ └── production/
├── modules/
│ ├── vpc/
│ ├── ecs-cluster/
│ └── rds/
└── global/
├── iam/
└── dns/
Naming Conventions
Loading code block...
Prevent Accidental Destruction
Loading code block...
CI/CD Integration
Loading code block...
Conclusion
Terraform enables reproducible, version-controlled infrastructure. Start with simple resources, graduate to modules for reusability, and use remote state for team collaboration.
Treat infrastructure code like application code: review changes, test in lower environments, and automate deployments. The investment in IaC pays dividends in reliability and speed.