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Workload Identity Federation

Letting workloads (VMs, pods, functions) authenticate to cloud services using their own identity (not long-lived credentials), via trust between identity providers and cloud platforms.

Workload identity federation eliminates long-lived secrets by establishing trust between identity providers (Kubernetes service accounts, GitHub Actions, on-prem IDPs) and cloud platforms: the workload presents a signed token from its IdP, and the cloud platform exchanges it for short-lived credentials scoped to a specific role. As a cloud-native security topic, workload identity federation is one of the strongest moves against secret leakage and is increasingly the default pattern for CI/CD, Kubernetes, and cross-cloud access.

Introduced in: Cloud-Native Security, Cloud Workload Protection

Examples

  • GitHub Actions assuming an AWS role via OIDC federation rather than stored keys.
  • Kubernetes pods using IRSA or workload identity to access cloud services.
  • Eliminating long-lived credentials in favor of federated workload identity.