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

learn/learn-kubernetes-master/kiamol/ch04/todo-list/secrets/todo-db-secret-data.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: todo-db-secret-test
+type: Opaque
+data:
+  POSTGRES_PASSWORD: a2lhbW9sLTIqMio=

learn/learn-kubernetes-master/kiamol/ch04/todo-list/secrets/todo-db-secret-test.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: todo-db-secret-test
+type: Opaque
+stringData:
+  POSTGRES_PASSWORD: "kiamol-2*2*"

learn/learn-kubernetes-master/kiamol/ch04/todo-list/secrets/todo-web-secret-test.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: todo-web-secret-test
+type: Opaque
+stringData:
+  secrets.json: |-
+    {
+      "ConnectionStrings": {
+        "ToDoDb": "Server=todo-db;Database=todo;User Id=postgres;Password=kiamol-2*2*;"
+      }
+    }