Step 1: Go to your project directory

cd ~/terraform-project/terraform-iac-assignment

Step 2: Initialize Terraform (install providers and modules)

terraform init

Step 3: Format Terraform files

terraform fmt

Step 4: Validate Terraform configuration

terraform validate

Step 5: Create EC2 key pair (replace with your name)

aws ec2 create-key-pair --key-name default-aws-1 --query 'KeyMaterial' --output text > default-aws-1.pem

Step 6: Set permissions for key pair

chmod 400 default-aws-1.pem

Step 7: Edit terraform.tfvars with your custom values

nano terraform.tfvars

- aws_region = "us-east-1"

- environment = "dev"

- lambda_s3_bucket = "pavan-iac-lambda-bucket-12345"

- key_name = "default-aws-1"

Step 8: Prepare Lambda deployment package

cd lambda-code zip lambda_function.zip lambda_function.py cd ..

Step 9: Upload Lambda code to S3

aws s3 cp lambda-code/lambda_function.zip s3://pavan-iac-lambda-bucket-12345/

Step 10: Check if Lambda code is uploaded

aws s3 ls s3://pavan-iac-lambda-bucket-12345/

Step 11: Plan Terraform deployment

terraform plan

Step 12: Apply Terraform configuration

terraform apply

Enter 'yes' when prompted

Step 13: Verify ECS cluster and Lambda function creation

ECS

aws ecs list-clusters --region us-east-1 aws ecs describe-clusters --clusters iac-assignment-cluster --region us-east-1

Lambda

aws lambda list-functions --region us-east-1 aws lambda get-function --function-name iac-assignment-lambda --region us-east-1

Step 14: Test Lambda function

aws lambda invoke
--function-name iac-assignment-lambda
--payload '{"test": "Hello from Terraform!"}'
response.json cat response.json

Step 15: Output resources from Terraform

terraform output

Step 16: After testing, destroy infrastructure (optional)

terraform destroy

Enter 'yes' when prompted

Step 17: Push project to GitHub

git init git add . git commit -m "Initial commit - Terraform IaC project" git branch -M main git remote add origin https://github.com/PavanBand/terraform-iac-assignment.git git push -u origin main