kyverno/test/cli/test-fail/invalid-ns/policy.yaml

---
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  annotations:
    policies.kyverno.io/category: Labels
    policies.kyverno.io/description: This policy prevents the use of an label beginning
      with a common key name (in this case "platform.das-schiff.telekom.de/owner |
      owner"). This can be useful to ensure users either don't set reserved labels
      or to force them to use a newer version of an label.
    policies.kyverno.io/minversion: 1.3.0
    policies.kyverno.io/title: Restrict Labels on Namespaces
  labels:
    policy.schiff.telekom.de: enforced
  name: restrict-labels
spec:
  admission: true
  background: false
  rules:
  - exclude:
      any:
      - clusterRoles:
        - cluster-admin
        resources: {}
    match:
      any:
      - resources:
          kinds:
          - Namespace
    name: restrict-labels
    validate:
      message: Every namespace has to have `platform.das-schiff.telekom.de/owner`
        label. It must not have value `das-schiff` which is reserved for system namespaces
      pattern:
        metadata:
          labels:
            =(schiff.telekom.de/owner): '!schiff'
            platform.das-schiff.telekom.de/owner: '!das-schiff'
      failureAction: Enforce