diff --git a/cover.jpg b/cover.jpg
index b09cceaa1..afcee3abe 100644
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diff --git a/images/create-gluster-storage.png b/images/create-gluster-storage.png
new file mode 100644
index 000000000..4dad860c8
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diff --git a/images/kubenetes-e2e-test.jpg b/images/kubenetes-e2e-test.jpg
new file mode 100644
index 000000000..f516e9f3f
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diff --git a/images/kubernetes-dashboard-raw.jpg b/images/kubernetes-dashboard-raw.jpg
new file mode 100644
index 000000000..fd76ccf4e
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diff --git a/images/kubernetes-installation-test-nginx.png b/images/kubernetes-installation-test-nginx.png
new file mode 100644
index 000000000..307c3dfaa
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diff --git a/images/kubernetes-locust-test.jpg b/images/kubernetes-locust-test.jpg
new file mode 100644
index 000000000..8b497a749
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diff --git a/practice/dashboard-addon-installation.md b/practice/dashboard-addon-installation.md
index 0d44646cd..3ea48d8f5 100644
--- a/practice/dashboard-addon-installation.md
+++ b/practice/dashboard-addon-installation.md
@@ -122,7 +122,7 @@ openssl pkcs12 -export -in admin.pem  -out admin.p12 -inkey admin-key.pem
 
 如果你不想使用**https**的话，可以直接访问insecure port 8080端口：<http://172.20.0.113:8080/api/v1/proxy/namespaces/kube-system/services/kubernetes-dashboard>
 
-![kubernetes-dashboard](http://olz1di9xf.bkt.clouddn.com/kubernetes-dashboard-raw.jpg)
+![kubernetes dashboard](../images/kubernetes-dashboard-raw.jpg)
 
 由于缺少 Heapster 插件，当前 dashboard 不能展示 Pod、Nodes 的 CPU、内存等 metric 图形。
 
diff --git a/practice/network-and-cluster-perfermance-test.md b/practice/network-and-cluster-perfermance-test.md
index 78877de96..377f99c1e 100644
--- a/practice/network-and-cluster-perfermance-test.md
+++ b/practice/network-and-cluster-perfermance-test.md
@@ -344,7 +344,7 @@ Test Suite Passed
 
 从`log.txt`日志中还可以看到更多详细请求的测试指标。
 
-![kubernetes-dashboard](http://olz1di9xf.bkt.clouddn.com/kubenetes-e2e-test.jpg)
+![kubernetes-dashboard](../images/kubenetes-e2e-test.jpg)
 
 ### 注意事项
 
@@ -386,7 +386,7 @@ Sample-webapp起了48个pod。
 
 Locust模拟10万用户，每秒增长100个。
 
-![locust-test](http://olz1di9xf.bkt.clouddn.com/kubernetes-locust-test.jpg)
+![locust测试页面](../images/kubernetes-locust-test.jpg)
 
 关于Locust的使用请参考Github：https://github.com/rootsongjc/distributed-load-testing-using-kubernetes
 
diff --git a/practice/node-installation.md b/practice/node-installation.md
index 34fbaf38b..add82cfaa 100644
--- a/practice/node-installation.md
+++ b/practice/node-installation.md
@@ -459,7 +459,7 @@ Commercial support is available at
 
 访问`172.20.0.113:32724`或`172.20.0.114:32724`或者`172.20.0.115:32724`都可以得到nginx的页面。
 
-![welcome-nginx](http://olz1di9xf.bkt.clouddn.com/kubernetes-installation-test-nginx.png)
+![welcome nginx](../images/kubernetes-installation-test-nginx.png)
 
 ## 参考
 
diff --git a/practice/storage-for-containers-using-glusterfs-with-openshift.md b/practice/storage-for-containers-using-glusterfs-with-openshift.md
index 1fdcd113b..6df225fec 100644
--- a/practice/storage-for-containers-using-glusterfs-with-openshift.md
+++ b/practice/storage-for-containers-using-glusterfs-with-openshift.md
@@ -491,7 +491,7 @@ nfs.disable: on
 
 或者，你也可以使用OpenShift UI来配置存储，这样可以很方便地在系统中的所有已知的StorageClasses中进行选择：
 
-![Screen Shot 2017-03-23 at 21.50.34](https://keithtenzer.files.wordpress.com/2017/03/screen-shot-2017-03-23-at-21-50-34.png?w=440)
+![创建存储](../images/create-gluster-storage.png)
 
 ![Screen Shot 2017-03-24 at 11.09.34.png](https://keithtenzer.files.wordpress.com/2017/03/screen-shot-2017-03-24-at-11-09-341.png?w=440)