Alter a Package to add inline overlay

01-package.yaml

apiVersion: data.packaging.carvel.dev/v1alpha1
kind: Package
metadata:
  name: tap.tanzu.vmware.com.1.8.1
  namespace: tap-install
spec:
  template:
    spec:
      deploy:
      - kapp: {}
      fetch:
      - imgpkgBundle:
          image: cxscssa.azurecr.io/tap-1-8-1/tap-packages@sha256:953ca5b86a46eb52311551d7bc9948b8a5cd38ffd599e7493286c0ce2a563f23
      template:
      - ytt:
          paths:
          - config/
      - kbld:
          paths:
          - '-'
          - .imgpkg/images.yml

02-overlay.yaml

#@ load("@ytt:overlay", "overlay")

#@ def with_name(vlan):
ytt:
  #@overlay/match missing_ok=True
  inline:
    pathsFrom:
    - secretRef:
        name: tap-pkg-overlay-secret
#@ end

#@overlay/match by=overlay.subset({"kind":"Package","metadata":{"namespace":"tap-install"}}),expects="1+"
---
spec:
  template:
    spec:
      template:
      #@overlay/match by=lambda idx, left, right: "ytt" in left, expects="1+"
      #@overlay/replace via=lambda left, right: overlay.apply(left, with_name(left))
      -