Distributed communications scenario - Queues

Goal

Set up a queuing mechanism to enable distributed services to communicate with each other within an organisation so they can remain (or become more) decoupled.

The task

You are required to set up a queue in a cloud provider (let’s assume AWS with SQS as a starting point).

The queue should:

• Be created and decomissioned via code
• Be updated by code to adjust properties such as message retention
• Have a mechanism to pick up messages
• Have a mechanism to remove a message from a queue once it has been processed

Prerequisites

You will want some AWS creds for an account you can work in.

Work

• Create a queue using infrastructure as code such as terraform
• Adjust the queue so that any messages older than 12 hours will be automatically deleted
• Send a test message to the queue
• Write something, maybe a script in your favourite language, to:
  • retrieve the test message from the queue
  • print the message body
  • remove the message from the queue