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Releasing IAM EKS User Mapper in open-source

I'm super excited to share something amazing our team at Qovery has been cooking up lately: the IAM EKS User Mapper. This isn't just any tool – it's our answer to a problem we know so many of you face: managing AWS IAM user access to Kubernetes clusters efficiently and securely. It's open-source and available to everyone now on GitHub.
September 26, 2025
Benjamin Chastanier
Software Engineer
Summary
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So, why did we decide to build this? Well, at Qovery, we saw how tedious and error-prone it can be to manually handle cluster access. We thought, "There's got to be a better way!" And thus, the IAM EKS User Mapper was born, crafted with love in Rust 🦀. Why Rust, you ask? It's simple: for its unparalleled performance and reliability. We wanted a tool as robust and dependable as your needs.

Diagram on how "IAM EKS User Mapper" works

Here’s a sneak peek into what makes this tool a must-have:

  1. Group Users Sync: Say goodbye to the hassle of manually updating access rights. This feature automatically syncs IAM users from groups directly into your Kubernetes cluster’s aws-auth configmap. It's all about making your life easier.
  2. SSO Support: We know how crucial SSO is for secure and efficient access management. That’s why our tool supports SSO roles in the aws-auth configmap, making it a breeze for users to connect to the cluster.

By open-sourcing the IAM EKS User Mapper, we’re inviting you to join in, contribute, and help shape the future of Kubernetes access management. Whether you're bug hunting, suggesting new features, or coding up a storm, we’re here for it and appreciate your input.

We’d love to hear from you. How do you currently handle Kubernetes cluster access? Any challenges or tips you'd like to share? Your experiences and feedback are gold to us. Please use this reddit thread or open an issue on GitHub if you want to share your experience.

In a nutshell, the IAM EKS User Mapper is our way of making Kubernetes management a little less stressful and a lot more secure. We can’t wait to see how you use it and make it even better.

Repository: IAM EKS User Mapper Repository

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