apiVersion: "helm-expt.confighub.com/v1alpha1"
kind: "ProductionImagePolicyDecision"
metadata:
  name: "metrics-server-metrics-server-public-oci-image-policy-decision"
spec:
  chart: "metrics-server/metrics-server"
  version: "3.13.0"
  targetScope:
    clusterClass: "cub-lk-kind-vanilla"
    namespace: "kube-system"
    deliveryPath: "confighub-oci"
    gitopsController: "argo"
  supportedBaseCandidate: "default"
  variantsCovered:
    - "external-tls-ca"
    - "default"
  decision: "mutable-image-exception-accepted-for-target-scope"
  decidedAt: "2026-06-09"
  claim: "The rendered Metrics Server bases still contain mutable image tags, but each rendered image reference has digest-resolution evidence. For the default public proof scope, the mutable tags are accepted as a target-scoped exception while stricter environments remain free to require digest-pinned bases or image overrides."
  renderedImageSummary:
    renderedSubjects: 2
    subjectsNeedingResolution: 2
    imageRefs: 2
    mutableTagRefs: 2
    floatingLatestOrUntaggedRefs: 0
    resolutionReceipts: 2
  variantReceipts:
    external-tls-ca:
      renderedObjectSetSHA256: "03497dfa266c74cd3bdbf9f884e4d255ae0f24b426a030f6290c36505a1300a4"
      sourceImageReviewRows: 1
      uniqueImages: 1
      receiptPath: "data/image-digest-workdown/receipts/metrics-server-metrics-server/external-tls-ca/image-digest-resolution.yaml"
    default:
      renderedObjectSetSHA256: "97514966a1917b1ae3b597ec3a32216d0a650db7cb56d472f4e722c69c869b51"
      sourceImageReviewRows: 1
      uniqueImages: 1
      receiptPath: "data/image-digest-workdown/receipts/metrics-server-metrics-server/default/image-digest-resolution.yaml"
  acceptedException:
    reason: "The public proof target uses the upstream Metrics Server image tag. The receipt set records the registry digest that tag resolved to at decision time."
    operatorAction: "For stricter production environments, create a digest-pinned base or image override policy before support expansion."
  limits:
    - "This does not mean the rendered manifests are digest-pinned."
    - "This is not a blanket approval for all clusters, private overlays, regulated environments, or future chart versions."
    - "This does not make the external-tls-ca base production-supported."
    - "If an upstream image tag is retargeted, rerun digest resolution and re-review this decision before promotion."
  evidence:
    -
      path: "data/image-digest-workdown/chart-summary.csv"
      claim: "Summarizes Metrics Server rendered image references."
    -
      path: "data/attack-plan-workdown/image-digest-review.csv"
      claim: "Lists every rendered Metrics Server image reference found in the object sets."
    -
      path: "data/image-digest-workdown/receipts/metrics-server-metrics-server/external-tls-ca/image-digest-resolution.yaml"
      claim: "Records registry digest resolution for the external-tls-ca rendered object set."
    -
      path: "data/image-digest-workdown/receipts/metrics-server-metrics-server/default/image-digest-resolution.yaml"
      claim: "Records registry digest resolution for the default rendered object set."
  remainingSupportBlockers:
    - "Record scan/resource-policy acceptance, APIService lifecycle boundary, and fresh target-scoped ConfigHub OCI/GitOps evidence."