apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  name: require-app-labels
  annotations:
    policies.kyverno.io/title: Require application identity labels
    policies.kyverno.io/category: Best Practices
    policies.kyverno.io/severity: medium
    policies.kyverno.io/description: >-
      Require application name and instance labels, accepting Dragonfly's native
      app identity in its namespace.
spec:
  validationFailureAction: Enforce
  background: true
  rules:
    - name: require-app-name-and-instance
      match:
        any:
          - resources:
              kinds:
                - Pod
      exclude:
        any:
          - resources:
              namespaces:
                - kube-system
                - kube-public
                - kube-node-lease
                - flux-system
                - flux-canary
                - kyverno
                - cert-manager
                - cilium-secrets
                - olm
                - operators
                - longhorn
                - openebs
                - intel-system
                - nfd
                - dragonfly
      validate:
        message: >-
          Pod must have non-empty labels app.kubernetes.io/name and
          app.kubernetes.io/instance for Cilium and operational selectors.
        pattern:
          metadata:
            labels:
              app.kubernetes.io/name: "?*"
              app.kubernetes.io/instance: "?*"
    - name: dragonfly-identity
      match:
        any:
          - resources:
              kinds:
                - Pod
              namespaces:
                - dragonfly
      validate:
        message: >-
          Pods require name and instance labels; Dragonfly cache Pods may use
          their native app label as the instance identity.
        anyPattern:
          - metadata:
              labels:
                app.kubernetes.io/name: "?*"
                app.kubernetes.io/instance: "?*"
          - metadata:
              labels:
                app.kubernetes.io/name: dragonfly
                app: "?*"