Merge pull request #314 from lufeewu/master

update glusterfs json file's url

Author: rootsongjc

practice/using-glusterfs-for-persistent-storage.md

@@ -159,7 +159,7 @@ $ vi /etc/hosts
 ## 配置 endpoints
 
 ```bash
-$ curl -O https://raw.githubusercontent.com/kubernetes/kubernetes/master/examples/volumes/glusterfs/glusterfs-endpoints.json
+$ curl -O https://raw.githubusercontent.com/kubernetes/examples/master/staging/volumes/glusterfs/glusterfs-endpoints.json
 
 # 修改 endpoints.json ，配置 glusters 集群节点ip
 # 每一个 addresses 为一个 ip 组
@@ -188,7 +188,7 @@ $ kubectl get ep
 ## 配置 service
 
 ```bash
-$ curl -O https://raw.githubusercontent.com/kubernetes/kubernetes/master/examples/volumes/glusterfs/glusterfs-service.json
+$ curl -O https://raw.githubusercontent.com/kubernetes/examples/master/staging/volumes/glusterfs/glusterfs-service.json
 
 # service.json 里面查找的是 enpointes 的名称与端口，端口默认配置为 1，我改成了1990
 
@@ -202,7 +202,7 @@ $ kubectl get svc
 ## 创建测试 pod
 
 ```bash
-$ curl -O https://raw.githubusercontent.com/kubernetes/kubernetes/master/examples/volumes/glusterfs/glusterfs-pod.json
+$ curl -O https://raw.githubusercontent.com/kubernetes/examples/master/staging/volumes/glusterfs/glusterfs-pod.json
 
 # 编辑 glusterfs-pod.json
 # 修改 volumes  下的 path 为上面创建的 volume 名称