website/content/en/examples/access/validating-admission-policy...

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YAML

apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionPolicy
metadata:
name: "demo-policy.example.com"
spec:
failurePolicy: Fail
matchConstraints:
resourceRules:
- apiGroups: ["*"]
apiVersions: ["*"]
operations: ["CREATE", "UPDATE"]
resources: ["*"]
matchConditions:
- name: 'exclude-leases' # Each match condition must have a unique name
expression: '!(request.resource.group == "coordination.k8s.io" && request.resource.resource == "leases")' # Match non-lease resources.
- name: 'exclude-kubelet-requests'
expression: '!("system:nodes" in request.userInfo.groups)' # Match requests made by non-node users.
- name: 'rbac' # Skip RBAC requests.
expression: 'request.resource.group != "rbac.authorization.k8s.io"'
validations:
- expression: "!object.metadata.name.contains('demo') || object.metadata.namespace == 'demo'"