---
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  annotations:
    policies.kyverno.io/category: Best Practices
    policies.kyverno.io/description: The ':latest' tag is mutable and can lead to
      unexpected errors if the image changes. A best practice is to use an immutable
      tag that maps to a specific version of an application pod.
  name: disallow-latest-tag
spec:
  admission: true
  background: true
  rules:
  - match:
      any:
      - resources:
          kinds:
          - Pod
    name: validate-image-tag
    validate:
      failureAction: Audit
      message: Using a mutable image tag e.g. 'latest' is not allowed.
      pattern:
        spec:
          containers:
          - image: '!*:latest'
---
apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
  annotations:
    policies.kyverno.io/scored: "false"
  name: drop-all-capabilities
spec:
  admission: true
  background: true
  rules:
  - match:
      any:
      - resources:
          kinds:
          - Pod
    name: require-drop-all
    preconditions:
      all:
      - key: '{{ request.operation }}'
        operator: NotEquals
        value: DELETE
    validate:
      failureAction: Audit
      foreach:
      - deny:
          conditions:
            all:
            - key: ALL
              operator: AnyNotIn
              value: '{{ element.securityContext.capabilities.drop || '''' }}'
        list: request.object.spec.[ephemeralContainers, initContainers, containers][]
      message: Containers must drop `ALL` capabilities.