Add support for legacy rbac

Signed-off-by: faizanahmad055 <faizan.ahmad55@outlook.com>

deployments/kubernetes/chart/reloader/templates/clusterrole.yaml

@@ -1,5 +1,9 @@
 {{- if and .Values.reloader.watchGlobally (.Values.reloader.rbac.enabled) }}
+{{- if and .Values.reloader.legacy.rbac }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{ else }}
 apiVersion: rbac.authorization.k8s.io/v1
+{{- end }}
 kind: ClusterRole
 metadata:
   labels:

deployments/kubernetes/chart/reloader/templates/clusterrolebinding.yaml

@@ -1,5 +1,9 @@
 {{- if and .Values.reloader.watchGlobally (.Values.reloader.rbac.enabled) }}
+{{- if and .Values.reloader.legacy.rbac }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{ else }}
 apiVersion: rbac.authorization.k8s.io/v1
+{{- end }}
 kind: ClusterRoleBinding
 metadata:
   labels:

deployments/kubernetes/chart/reloader/templates/role.yaml

@@ -1,5 +1,9 @@
 {{- if and (not (.Values.reloader.watchGlobally)) (.Values.reloader.rbac.enabled) }}
+{{- if and .Values.reloader.legacy.rbac }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{ else }}
 apiVersion: rbac.authorization.k8s.io/v1
+{{- end }}
 kind: Role
 metadata:
   labels:

deployments/kubernetes/chart/reloader/templates/rolebinding.yaml

@@ -1,5 +1,9 @@
 {{- if and (not (.Values.reloader.watchGlobally)) (.Values.reloader.rbac.enabled) }}
+{{- if and .Values.reloader.legacy.rbac }}
+apiVersion: rbac.authorization.k8s.io/v1beta1
+{{ else }}
 apiVersion: rbac.authorization.k8s.io/v1
+{{- end }}
 kind: RoleBinding
 metadata:
   labels: 

deployments/kubernetes/chart/reloader/values.yaml

@@ -17,6 +17,8 @@ reloader:
   watchGlobally: true
   # Set to true if you have a pod security policy that enforces readOnlyRootFilesystem
   readOnlyRootFileSystem: false
+  legacy:
+    rbac: false
   matchLabels: {}
   deployment:
     nodeSelector: