Kubernetes Authentication
Kubernetes Authentication is the process of verifying the identity of users, service accounts, or external systems attempting to access a Kubernetes cluster. It determines who can connect to the cluster by validating credentials such as client certificates, bearer tokens, or OpenID Connect tokens. This is the first step in the Kubernetes security chain, preceding authorization and admission control.
Developers should learn Kubernetes Authentication to secure their clusters against unauthorized access, especially in production environments where sensitive data and applications are hosted. It is essential for implementing role-based access control (RBAC), auditing user activities, and integrating with enterprise identity providers like LDAP or Active Directory. Use cases include multi-tenant clusters, CI/CD pipelines requiring automated access, and compliance with security standards.