ytt-metadata-from-name.yaml

#! See https://kubernetes.slack.com/archives/CH8KCCKA5/p1685663088982309

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

---
apiVersion: v1
kind: Service
metadata:
  labels:
    foo: bar
  name: some-name
  namespace: pl
---

#@ def set_label_component_name(name):
  labels:
    #@overlay/match missing_ok=True
    app.kubernetes.io/component: #@ name
#@ end

#@ def component_from_name(left, right):
#@  x = dict(**left)
#@  name = x["name"]
#@  return overlay.apply(left, set_label_component_name(name))
#@ end

#@overlay/match by=overlay.subset({"metadata":{"namespace":"pl"}}), expects="1+"
---
#@overlay/replace via=component_from_name
metadata: