Getting Started with IaC (Terraform)

shubham thokare

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Jan 22, 2025

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1. Learn the Basics

• Understand cloud computing concepts like VMs, networking, and storage.
• Familiarize yourself with YAML/JSON as many IaC tools use these formats.

2. Set Up the Environment

• Install the tool (e.g., Terraform CLI).
• Configure cloud provider credentials (AWS CLI, etc.).

3. Write Your First IaC Script

• Define simple infrastructure (e.g., an AWS EC2 instance).
• Example (Terraform):

provider "aws" {
  region = "ap-south-1"
}

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

5. Apply the Configuration

• Initialize, plan, and apply the configuration:

terraform init
terraform plan
terraform apply

6. Test and Validate

• Ensure the resources are provisioned as expected.
• Use monitoring and logging tools to validate the setup.

7. Manage State

• Use state files (e.g., terraform.tfstate) to track current infrastructure.
• Store state securely (e.g., Terraform backend in S3).

8. Clean Up Resources

• Destroy resources when not needed to avoid costs:

terraform destroy