AWS IAM Authenticator for Kubernetes

AWS IAM Authenticator for Kubernetes is a free Windows tool for authenticating users to a Kubernetes cluster with AWS IAM credentials. It is intended for environments where Kubernetes runs on AWS and administrators already manage IAM credentials for cluster provisioning and updates. The tool connects Kubernetes access with an existing AWS identity instead of requiring a separate Kubernetes credential.

Its main function is to use AWS IAM as the authentication basis for Kubernetes logins. This can provide an audit trail through AWS CloudTrail and support AWS IAM requirements such as two-factor or multifactor authentication. These capabilities make it relevant to administrators who want cluster access to follow their established AWS identity controls.

The tool is also useful when building or installing Kubernetes clusters on AWS. A cluster installer can create a dedicated KubernetesAdmin role during provisioning and configure the authenticator to permit administrator logins through that role. This approach can reduce the need to transfer an initial administrator credential out of a newly installed cluster.

MirrorNest lists AWS IAM Authenticator for Kubernetes in its Windows software catalog and links directly to the official release rather than hosting a mirrored copy. The license is free, so there is no listed purchase requirement for obtaining the tool. The project was initially driven by Heptio, receives contributions from community engineers, and is maintained by Heptio and Amazon EKS open-source software engineers.