add test only

@@ -51,3 +51,6 @@ zookeeper:
  - 10.66.4.5
  - 10.66.4.8
  - 10.66.4.9
+
+# for test
+test_only: 127.0.0.1
\ No newline at end of file

@@ -49,3 +49,6 @@ zookeeper:
  - 10.66.105.4
  - 10.66.105.37
  - 10.66.105.30
+
+# for test
+test_only: 127.0.0.1
\ No newline at end of file

@@ -49,3 +49,6 @@ zookeeper:
  - 10.66.202.4
  - 10.66.202.4
  - 10.66.202.2
+
+# for test
+test_only: 127.0.0.1
\ No newline at end of file

@@ -226,3 +226,6 @@ global.mem.02                                     IN	A         10.66.5.17
 media.rabbit                                      IN	A         10.66.251.8
 search-mars                                       IN	A         10.66.251.4
 now.redis                                         IN	A         10.66.251.11
+
+; this is only for test
+test_only                                         IN	A          {{ test_only}}
\ No newline at end of file