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

learn/learn-kubernetes-master/kiamol/ch02/lab/README.md

@@ -0,0 +1,15 @@
+kubectl apply -f solution/deployment.yaml
+
+kubectl port-forward deploy/whoami 8080:80
+
+curl http://localhost:8080
+
+> "I'm whoami-687976f48b-tkxp9 running on Linux 4.19.76-linuxkit #1 SMP Thu Oct 17 19:31:58 UTC 2019"
+
+kubectl get pods -o custom-columns=NAME:metadata.name
+
+> whoami-68bf776fd-s6sr9
+
+kubectl exec deploy/whoami -- sh -c 'hostname'
+
+> whoami-687976f48b-tkxp9

learn/learn-kubernetes-master/kiamol/ch02/lab/pod.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: whoami-1
+spec:
+  containers:
+    - name: web
+      image: kiamol/ch02-whoami

learn/learn-kubernetes-master/kiamol/ch02/lab/solution/deployment.yaml

@@ -0,0 +1,21 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: whoami
+  labels:
+    app: whoami
+    version: ch02
+spec:
+  selector:
+    matchLabels:
+      app: whoami
+      version: ch02
+  template:
+    metadata:
+      labels:
+        app: whoami
+        version: ch02
+    spec:
+      containers:
+        - name: web
+          image: kiamol/ch02-whoami