strato-infra/flux/cluster/base/flux-system/registry-creds.yaml

apiVersion: external-secrets.io/v1beta1
kind: ExternalSecret
metadata:
  name: registry-creds
  namespace: flux-system
spec:
  refreshInterval: "5m"
  secretStoreRef:
    name: vault
    kind: ClusterSecretStore
  target:
    name: registry-creds
    template:
      type: kubernetes.io/dockerconfigjson
  data:
    - secretKey: .dockerconfigjson
      remoteRef:
        key: k8s/registry-creds
        property: dockerconfigjson