Dynamodb_streams_ttl

This project sets up an AWS infrastructure using Terraform to create a DynamoDB table which moves the deleted items due to TTL to DynamoDB stream as and REMOVE event. This events are processed by Lambda functions.

Project Structure

• main.tf: Contains the main configuration for the Terraform infrastructure, defining the AWS EventBridge rule and the Lambda function.
• variables.tf: Defines input variables for the Terraform configuration, specifying types and default values.
• outputs.tf: Specifies output values that Terraform will display after applying the configuration, including resource ARNs.
• provider.tf: Configures the Terraform provider, typically the AWS provider with necessary authentication details.

Getting Started

Prerequisites

• Terraform installed on your machine.
• AWS account with appropriate permissions to create resources.
• AWS CLI configured with your credentials.

Setup

1. Clone the repository:

   git clone <repository-url>
   cd dynamodb_streams_ttl
   

1.1 Prepare lambda package:

cd lambda_package
zip -r ../lambda.zip .
cd ..

2. Initialize Terraform:

   terraform init
   

3. Review and modify the variables.tf file as needed to set your desired configurations.

4. Plan the deployment:

   terraform plan
   

5. Apply the configuration:

   terraform apply
   

6. Add a item in DB table:

   aws dynamodb put-item \
      --table-name scheduled_tasks \
      --item '{
         "task_id": {"S": "task_christmas2024"},
         "scheduled_time": {"N": "1735084800"}
      
      }' \
      --region us-east-1
   

Outputs

After applying the configuration, Terraform will display the output values defined in outputs.tf, including the ARN of the created resources.

Cleanup

To remove the resources created by this project, run:

terraform destroy

License

This project is licensed under the MIT License.