update the process for generating the /etc/hosts file to make it more robust

roles/calculateEtcHosts/files/makehosts.py

@@ -25,10 +25,12 @@ for group in d['groups'].keys():
 
 for h in hosts.keys():
     if d['hostvars'].has_key(h):
-        string="%s"%(d['hostvars'][h]['ansible_eth0']['ipv4']['address'])
-        for name in hosts[h]:
-            string=string+" %s"%(name)
-        print string
+	for addr in d['hostvars'][h]['ansible_all_ipv4_addresses']:
+	    if "172.16.200" in addr:
+		string="%s"%addr
+		for name in hosts[h]:
+		    string=string+" %s"%(name)
+		print string
 
 for h in hosts.keys():
     if d['hostvars'].has_key(h):