Start migration of helm chart (#5159)

charts/ingress-nginx/templates/admission-webhooks/job-patch/role.yaml

@@ -0,0 +1,23 @@
+{{- if and .Values.controller.admissionWebhooks.enabled .Values.controller.admissionWebhooks.patch.enabled }}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name:  {{ template "nginx-ingress.fullname" . }}-admission
+  annotations:
+    "helm.sh/hook": pre-install,pre-upgrade,post-install,post-upgrade
+    "helm.sh/hook-delete-policy": before-hook-creation,hook-succeeded
+  labels:
+    app: {{ template "nginx-ingress.name" . }}
+    chart: {{ template "nginx-ingress.chart" . }}
+    component: "{{ .Values.controller.name }}"
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - secrets
+    verbs:
+      - get
+      - create
+{{- end }}