policy-kyverno-image-pull-policy.yaml

apiVersion: policy.open-cluster-management.io/v1
kind: Policy
metadata:
  name: policy-kyverno-image-pull-policy
  annotations:
    policy.open-cluster-management.io/standards: NIST SP 800-53
    policy.open-cluster-management.io/categories: CM Configuration Management
    policy.open-cluster-management.io/controls: CM-2 Baseline Configuration
spec:
  remediationAction: enforce
  disabled: false
  policy-templates:
    - objectDefinition:
        apiVersion: policy.open-cluster-management.io/v1
        kind: ConfigurationPolicy
        metadata:
          name: policy-kyverno-image-pull-policy
        spec:
          remediationAction: inform # will be overridden by remediationAction in parent policy
          severity: low
          object-templates:
            - complianceType: musthave
              objectDefinition:
                apiVersion: kyverno.io/v1
                kind: ClusterPolicy
                metadata:
                  name: always-pull-images
                  annotations:
                    policies.kyverno.io/title: Always Pull Images
                    policies.kyverno.io/category: Sample
                    policies.kyverno.io/severity: medium
                    policies.kyverno.io/subject: Pod
                    policies.kyverno.io/description: >-
                      By default, images that have already been pulled can be accessed by other
                      Pods without re-pulling them if the name and tag are known. In multi-tenant scenarios,
                      this may be undesirable. This policy mutates all incoming Pods to set their
                      imagePullPolicy to Always. An alternative to the Kubernetes admission controller
                      AlwaysPullImages.
                spec:
                  background: false
                  rules:
                    - name: always-pull-images
                      match:
                        resources:
                          kinds:
                            - Pod
                      mutate:
                        patchStrategicMerge:
                          spec:
                            containers:
                              - (name): "?*"
                                imagePullPolicy: Always
---
apiVersion: policy.open-cluster-management.io/v1
kind: PlacementBinding
metadata:
  name: binding-policy-kyverno-image-pull-policy
placementRef:
  name: placement-policy-kyverno-image-pull-policy
  kind: PlacementRule
  apiGroup: apps.open-cluster-management.io
subjects:
  - name: policy-kyverno-image-pull-policy
    kind: Policy
    apiGroup: policy.open-cluster-management.io
---
apiVersion: apps.open-cluster-management.io/v1
kind: PlacementRule
metadata:
  name: placement-policy-kyverno-image-pull-policy
spec:
  clusterSelector:
    matchExpressions:
      - {key: environment, operator: In, values: ["dev"]}