skip set hosts by mic when /etc/hosts exists or add option to skip

Change-Id: Ic9c63103fdde12ead58fbef676952a575e97daed

diff --git a/mic/kickstart/__init__.py b/mic/kickstart/__init__.py
index 0c3959e..6fbf3ed 100755 (executable)
--- a/mic/kickstart/__init__.py
+++ b/mic/kickstart/__init__.py
@@ -674,7 +674,8 @@ class NetworkConfig(KickstartConfig):
 
         #to avoid import error because of import each other
         from mic.conf import configmgr
-        if configmgr.create['skip_set_hosts'] == False:
+        path=self.path("/etc/hosts")
+        if configmgr.create['skip_set_hosts'] == False and os.path.exists(path) == False:
             self.write_hosts(hostname)
         self.write_resolv(nodns, nameservers)