website/content/en/docs/tasks/configure-pod-container/enforce-standards-admission-controller.md

title	reviewers	content_type	min-kubernetes-server-version
Enforce Pod Security Standards by Configuring the Built-in Admission Controller	tallclair liggitt	task	v1.22

As of v1.22, Kubernetes provides a built-in admission controller to enforce the Pod Security Standards. You can configure this admission controller to set cluster-wide defaults and exemptions.

{{% heading "prerequisites" %}}

{{% version-check %}}

• Ensure the PodSecurity feature gate is enabled.

Configure the Admission Controller

{{< tabs name="PodSecurityConfiguration_example_1" >}} {{% tab name="pod-security.admission.config.k8s.io/v1beta1" %}}

apiVersion: apiserver.config.k8s.io/v1
kind: AdmissionConfiguration
plugins:
- name: PodSecurity
  configuration:
    apiVersion: pod-security.admission.config.k8s.io/v1beta1
    kind: PodSecurityConfiguration
    # Defaults applied when a mode label is not set.
    #
    # Level label values must be one of:
    # - "privileged" (default)
    # - "baseline"
    # - "restricted"
    #
    # Version label values must be one of:
    # - "latest" (default) 
    # - specific version like "v{{< skew currentVersion >}}"
    defaults:
      enforce: "privileged"
      enforce-version: "latest"
      audit: "privileged"
      audit-version: "latest"
      warn: "privileged"
      warn-version: "latest"
    exemptions:
      # Array of authenticated usernames to exempt.
      usernames: []
      # Array of runtime class names to exempt.
      runtimeClasses: []
      # Array of namespaces to exempt.
      namespaces: []

{{< note >}} v1beta1 configuration requires v1.23+. For v1.22, use v1alpha1. {{< /note >}}

{{% /tab %}} {{% tab name="pod-security.admission.config.k8s.io/v1alpha1" %}}

apiVersion: apiserver.config.k8s.io/v1
kind: AdmissionConfiguration
plugins:
- name: PodSecurity
  configuration:
    apiVersion: pod-security.admission.config.k8s.io/v1alpha1
    kind: PodSecurityConfiguration
    # Defaults applied when a mode label is not set.
    #
    # Level label values must be one of:
    # - "privileged" (default)
    # - "baseline"
    # - "restricted"
    #
    # Version label values must be one of:
    # - "latest" (default) 
    # - specific version like "v{{< skew currentVersion >}}"
    defaults:
      enforce: "privileged"
      enforce-version: "latest"
      audit: "privileged"
      audit-version: "latest"
      warn: "privileged"
      warn-version: "latest"
    exemptions:
      # Array of authenticated usernames to exempt.
      usernames: []
      # Array of runtime class names to exempt.
      runtimeClasses: []
      # Array of namespaces to exempt.
      namespaces: []

{{% /tab %}} {{< /tabs >}}