feat: Add dynamic admission controller section to scs 0217#1106
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viccuad wants to merge 1 commit intoSovereignCloudStack:mainfrom
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feat: Add dynamic admission controller section to scs 0217#1106viccuad wants to merge 1 commit intoSovereignCloudStack:mainfrom
viccuad wants to merge 1 commit intoSovereignCloudStack:mainfrom
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viccuad
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Feb 18, 2026
| this, the Kubernetes API server MUST be configured with mutual TLS | ||
| authentication for the Webhooks (see [Kubernetes | ||
| docs](https://kubernetes.io/docs/reference/access-authn-authz/extensible-admission-controllers/#authenticate-apiservers)) | ||
| . The Policy Engine MUST be able to authenticate the API server and MUST be |
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As an example, here's the threat model for Kubewarden, and the documentation on how to generally configure a cluster API server & Kubewarden, or specifically configure both a K3s API server & Kubewarden as well.
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Dynamic Admission Controllers from Policy Engines constitute a special attack surface. From the SIG security threat model, the majority of mitigations are implemented by policy engines and cluster operators. But cluster providers must enable mutual TLS for secure consumption of Kubernetes API webhooks, and cluster operators must use a policy engine that authenticates against those TLS-terminated webhooks (not all policy engines do). Signed-off-by: Víctor Cuadrado Juan <vcuadradojuan@suse.de>
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Dynamic Admission Controllers from Policy Engines constitute a special attack surface.
From the SIG security threat model, the majority of mitigations are implemented by policy engines and cluster operators.
But cluster providers must enable mutual TLS for secure consumption of Kubernetes API webhooks, and cluster operators must use a policy engine that authenticates against those TLS-terminated webhooks (not all policy engines do).