Terraform Infrastructure as Code

Infrastructure as Code (IaC) is a best practice for managing cloud resources.

What is Terraform?

Terraform is an open-source IaC tool that allows you to define infrastructure using declarative configuration files.

Benefits of IaC

• Version control for infrastructure
• Reproducible deployments
• Infrastructure documentation
• Team collaboration
• Disaster recovery

Basic Terraform Workflow

1. Write configuration files (.tf files)

2. Initialize Terraform: `terraform init`

3. Plan changes: `terraform plan`

4. Apply changes: `terraform apply`

Example

resource "aws_instance" "web" {
  ami           = "ami-0c55b159cbfafe1f0"
  instance_type = "t2.micro"

  tags = {
    Name = "web-server"
  }
}

Terraform makes infrastructure management predictable and scalable.