Merge pull request #124 from umagnus/attach_test

[test] use curl in cyc_attach_detach_test.sh for attach/detach test

test/cyc_attach_detach_test.sh

@@ -3,6 +3,6 @@
 for i in $(seq $4)
 do
     echo "test $i" >> $3
-    sh attach_detach_test.sh $1 $2 $3
+    curl -skSL https://raw.githubusercontent.com/Azure/kubernetes-volume-drivers/master/test/attach_detach_test.sh | bash -s $1 $2 $3 --
     sleep 30m
 done