Adopt most resources into a Helm install

adopt_helm_resources.sh

#!/bin/bash

NAME=test
NAMESPACE=default
RESOURCES=service,role.rolebinding # Comma-delimited

kubectl get -n $NAMESPACE $RESOURCES -o name \
  | xargs -I % kubectl label -n $NAMESPACE % app.kubernetes.io/managed-by=Helm
kubectl get -n $NAMESPACE $RESOURCES -o name \
  | xargs -I % kubectl annotate -n $NAMESPACE % meta.helm.sh/release-name=$NAME
kubectl get -n $NAMESPACE $RESOURCES -o name \
  | xargs -I % kubectl annotate -n $NAMESPACE % meta.helm.sh/release-namespace=$NAMESPACE