Authentication
Explore how Kubernetes authenticates API requests through credentials and kubeconfig configuration. Understand the pluggable authentication layer, client certificates, and integration with external identity systems like Active Directory and cloud IAMs to secure your cluster's access.
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Authentication is about proving the identity. We might see or hear it shortened to authN, pronounced “auth en”.
Credentials
Credentials are at the heart of authentication, and all requests to the API server include credentials. It’s the responsibility of the authentication layer to verify them. If verification fails, the API server returns an HTTP 401 and denies the request. If it succeeds, the request moves on to authorization.
The authentication layer in Kubernetes is pluggable, and popular modules include client certificates, webhooks, and integration with external identity ...