SQS and Lambda Project

This project sets up an AWS infrastructure using Terraform that includes an SQS queue and a Lambda function. The Lambda function processes messages from the SQS queue with specific handling for message visibility and delay.

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 Scheduler-SimpleQService
   

1.1 Prepare lambda package:

cd lambda_package
pip install --target ./package boto3
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 items to SQS. one that has expired and one that would expire in the future:

aws sqs send-message-batch  --queue-url $sqs_queue_url --entries '[
        {
            "Id": "msg1",
            "MessageBody": "{\"task_id\": \"19780512\", \"scheduled_time\": \"2025-02-04T12:00:00Z\"}"
        },
        {
            "Id": "msg2",
            "MessageBody": "{\"task_id\": \"1980917\", \"scheduled_time\": \"2025-02-07T00:00:00Z\"}"
        }
    ]'     --region us-east-1
    

7. after a minute or so , check logs

#First task
2025-02-06T23:16:53.095+08:00
Running task 19780512

Running task 19780512

#Second task
2025-02-06T23:16:53.103+08:00
Rescheduling task 1980917 to run in 31386 seconds

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.