How In-Cluster Authentication Works in Kubernetes | ServiceAccount Explained
Автор: rich
Загружено: 2026-01-05
Просмотров: 2
In this video, I explain how in-cluster authentication works in Kubernetes using ServiceAccounts.
When applications run inside a Kubernetes cluster, they do not use kubeconfig files or user credentials. Instead, Kubernetes automatically provides each Pod with a ServiceAccount identity, which is used to securely authenticate with the Kubernetes API server.
Using my Kubernetes Job Scheduler project as an example, I walk through:
What a ServiceAccount is and why it exists
How Kubernetes mounts authentication credentials into Pods
How config.load_incluster_config() works internally
How applications authenticate to the Kubernetes API server from inside the cluster
Why this approach is secure and used in production systems
This concept is fundamental for building Kubernetes-native automation, controllers, CI/CD systems, and internal platform services.
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