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

learn/learn-kubernetes-master/kiamol/ch20/docker-images/docker-compose.yml

@@ -0,0 +1,52 @@
+version: "3.7"
+
+services:
+  ch20-user-controller:
+    image: kiamol/ch20-user-controller
+    build:
+      context: ./user-controller
+
+  ch20-log-archiver:
+    image: kiamol/ch20-log-archiver
+    build:
+      context: ./log-archiver
+
+  ch20-web-ping-archiver:
+    image: kiamol/ch20-web-ping-archiver
+    build:
+      context: ./web-ping-archiver
+
+  ch20-wpo-installer:
+    image: kiamol/ch20-wpo-installer
+    build:
+      context: ./web-ping-operator
+      dockerfile: docker/installer/Dockerfile
+
+  ch20-wpo-pinger-controller:
+    image: kiamol/ch20-wpo-pinger-controller
+    build:
+      context: ./web-ping-operator
+      dockerfile: docker/pinger-controller/Dockerfile
+
+  ch20-wpo-archive-controller:
+    image: kiamol/ch20-wpo-archive-controller
+    build:
+      context: ./web-ping-operator
+      dockerfile: docker/archive-controller/Dockerfile
+
+  ch20-todo-list:
+    image: kiamol/ch20-todo-list
+    build:
+      context: ./todo-list
+      dockerfile: docker/web/Dockerfile
+
+  ch20-todo-save-handler:
+    image: kiamol/ch20-todo-save-handler
+    build:
+      context: ./todo-list
+      dockerfile: docker/save-handler/Dockerfile
+
+  ch20-timecheck-controller:
+    image: kiamol/ch20-timecheck-controller
+    build:
+      context: ./timecheck-controller