diff --git a/lib/get_ndb_ips b/lib/get_ndb_ips
new file mode 100644
index 00000000..ba801f6e
--- /dev/null
+++ b/lib/get_ndb_ips
@@ -0,0 +1,29 @@
+[%
+  # Return a hash of IPs from the interface of a given
+  # type for all nodes which act as a given role
+  # dbnode value of that host
+  #
+  # @param argv.role	The role of the node to process
+  #			One of: proxy, lb, mgmt
+  # @param argv.type	The interface type of a node to extract
+  #			the ip from
+  #			One of: web_int, web_ext, sip_int, sip_ext, ...
+  # @return out		The hash of ips and dbnode values
+-%]
+[% out = {} -%]
+[% FOREACH host IN hosts.keys -%]
+[% IF hosts.$host.role.grep('^' _ argv.role _ '$').size() -%]
+[% FOREACH iface IN hosts.$host.interfaces -%]
+[% FOREACH realiface IN hosts.$host.keys -%]
+[% IF realiface == iface -%]
+[% IF hosts.$host.$realiface.type.grep('^' _ argv.type _ '$').size() -%]
+[% ip = hosts.$host.$realiface.ip -%]
+[% IF !out.exists($ip)  -%]
+[% out.$ip = hosts.$host.dbnode -%]
+[% END -%]
+[% END -%]
+[% END -%]
+[% END -%]
+[% END -%]
+[% END -%]
+[% END -%]