Authenticate an AWS SQS Scaler in Keda

Learn how to effectively authenticate your AWS SQS scale with Keda, with detailed steps and methodologies for seamless deployment.
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How to Authenticate an AWS SQS Scaler in Keda

In today's cloud environments, scaling applications dynamically has become essential to handle varying workloads efficiently. Kubernetes Event-driven Autoscaling (KEDA) allows users to scale their applications based on various event sources such as AWS SQS. However, authenticating your AWS SQS scaler in Keda can be challenging. If you're facing issues while trying to scale your deployment based on AWS SQS, this guide will guide you through the process of authenticating your KEDA scaler.

Problem Overview

A developer faced an issue while attempting to deploy KEDA deeper into their Kubernetes configuration. The scaled object was set to manage provisions based on messages in an AWS SQS queue, but errors stating "no credential providers in the chain" arose, indicating that the AWS credentials were not being sent correctly or were misconfigured.

To resolve this issue, we discuss two methods to authenticate your AWS SQS scaler in Keda.

Solution Outline

Method 1: Using AWS IAM Role Attached to Node

Using an IAM role attached to your node grants simpler access to AWS SQS, which can eliminate the need to handle AWS credentials directly in your application. Here’s how to set it up:

Update identityOwner: Change the identityOwner field from pod to operator in your KEDA ScaledObject configuration. This allows KEDA to use the node role to access AWS SQS.

Sample ScaledObject File:

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Method 2: Using IAM User

If you prefer to manage AWS credentials through an IAM user, follow these steps:

Create IAM User: Set up an IAM user in AWS and grant relevant permissions for SQS.

Create Kubernetes Secret: Encode the IAM user's Access Key and Secret Key in base64 format and create a secret in Kubernetes.

Create Secret Examples:

[[See Video to Reveal this Text or Code Snippet]]

Create TriggerAuthentication: This will link your secret to the KEDA scaler.

TriggerAuthentication Example:

[[See Video to Reveal this Text or Code Snippet]]

Create ScaledObject: Define how KEDA should scale your deployment based on SQS events.

ScaledObject Example:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By applying either of the two methods discussed above, you should be able to successfully authenticate your AWS SQS scaler in Keda. Whether you prefer utilizing an IAM role for simplicity or managing credentials via an IAM user gives you flexibility based on your security needs and operational preferences.

If you encounter any further issues, double-check your configurations, and ensure that all required permissions are granted to access the AWS SQS queue efficiently. Happy scaling!