新增learn-kubernetes（https://github.com/yyong-brs/learn-kubernetes）相关文件

learn/learn-kubernetes-master/kiamol/ch17/kube-explorer/update/rbac-with-kube-system.yaml

@@ -0,0 +1,27 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: system-pod-reader
+  namespace: kube-system
+  labels:
+    kiamol: ch17
+rules:
+- apiGroups: [""] #core
+  resources: ["pods"]
+  verbs: ["get", "list"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: kube-explorer-system
+  namespace: kube-system  
+  labels:
+    kiamol: ch17
+subjects:
+- kind: ServiceAccount
+  name: kube-explorer
+  namespace: default
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: system-pod-reader