diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..485dee6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.idea
diff --git a/docker_wrapper.py b/docker_wrapper.py
index 6c8aa4c..1912494 100755
--- a/docker_wrapper.py
+++ b/docker_wrapper.py
@@ -5,18 +5,21 @@
 import os
 import sys
 
-#  gcr.io/xxx/yyy:zzz -> gcr.azk8s.cn/xxx/yyy:zzz, for example gcr.io/google_containers/kube-apiserver:v1.14.1
-#  k8s.gcr.io/xxx:yyy => gcr.io/google-containers/xxx:yyy -> gcr.azk8s.cn/google-containers/xxx:yyy, for example k8s.gcr.io/kube-apiserver:v1.14.1
-#  quay.io/xxx/yyy:zzz -> quay.azk8s.cn/xxx/yyy:zzz, for example quay.io/coreos/flannel:v0.10.0-amd64
+#  gcr.io/xxx/yyy:zzz -> gcr.azk8s.cn/xxx/yyy:zzz,
+#       for example registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.14.1
+#  k8s.gcr.io/xxx:yyy ->  registry.cn-hangzhou.aliyuncs.com/google-containers/xxx:yyy,
+#       for example k8s.gcr.io/kube-apiserver:v1.14.1
+#  quay.io/xxx/yyy:zzz -> quay.azk8s.cn/xxx/yyy:zzz,
+#       for example quay.io/coreos/flannel:v0.10.0-amd64 -- not support for now.
 
 converts = [
     {
         'prefix': 'gcr.io',
-        'replace': lambda x: x.replace('gcr.io', 'gcr.azk8s.cn'),
+        'replace': lambda x: x.replace('gcr.io', 'registry.cn-hangzhou.aliyuncs.com'),
     },
     {
         'prefix': 'k8s.gcr.io',
-        'replace': lambda x: x.replace('k8s.gcr.io', 'gcr.azk8s.cn/google-containers'),
+        'replace': lambda x: x.replace('k8s.gcr.io', 'registry.cn-hangzhou.aliyuncs.com/google_containers'),
     },
     {
         'prefix': 'quay.io',
@@ -24,15 +27,18 @@
     }
 ]
 
+
 def execute_sys_cmd(cmd):
     result = os.system(cmd)
     if result != 0:
         print(cmd + " failed.")
         sys.exit(-1)
 
+
 def usage():
     print("Usage: " + sys.argv[0] + " pull ${image}")
 
+
 if __name__ == "__main__":
     if len(sys.argv) != 3:
         usage()
@@ -40,11 +46,14 @@ def usage():
 
     image = sys.argv[2]
     imageArray = image.split("/")
-   
-    newImage = '' 
+
+    newImage = ''
     for cvt in converts:
         if imageArray[0] == cvt['prefix']:
             newImage = cvt['replace'](image)
+            # this is a special case: the tag of coredns image on aliyun repo has no "v" prefix.
+            if imageArray[1] == "coredns":
+                newImage = newImage.replace("/coredns:v", ":")
             break
     if newImage:
         print("-- pull {image} from {newimage} instead --".format(image=image, newimage=newImage))