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Interactive Explainer

Kubernetes Security Hardening

CIS benchmark hardening, Pod Security Standards, network policies, RBAC least-privilege, and supply chain security.

🎯Key Takeaways
Enable Pod Security Standards (Restricted profile)
RBAC: least-privilege service accounts per workload
NetworkPolicies: default-deny ingress, explicit allow

Kubernetes Security Hardening

CIS benchmark hardening, Pod Security Standards, network policies, RBAC least-privilege, and supply chain security.

~1 min read
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What you'll learn
  • Enable Pod Security Standards (Restricted profile)
  • RBAC: least-privilege service accounts per workload
  • NetworkPolicies: default-deny ingress, explicit allow

K8s Security Layers

Kubernetes security has 4 layers: infrastructure (node hardening, etcd encryption), cluster (API audit logs, RBAC), workload (Pod Security Standards Restricted profile, resource limits), and application (image scanning, secrets management with Vault or ESO).

Key takeaways

  • Enable Pod Security Standards (Restricted profile)
  • RBAC: least-privilege service accounts per workload
  • NetworkPolicies: default-deny ingress, explicit allow

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