TT#157251 Add 'get_all_adv_ips_for_instance' script

We need to add a new script, which finds and grabs
a list needed advertised ip addresses for a particular instance.

Change-Id: Id33c4e2d4de071c5feb34dd9346a33ef4a61381b

lib/get_all_adv_ips_for_instance

@@ -0,0 +1,40 @@
+[%
+# vi: ft=tt2
+
+# Return an advertised IP from the interface of a given LB instance
+# @param argv.instance  instance object
+#
+# @param argv.type      The interface type of LB to extract the advertised IP
+#                       from, one of:
+#                         sip_int, sip_ext
+# @param argv.status    node status [ online, offline, inactive ]
+#                         default value: ['online', 'inactive']
+# @return out           The array of IPs.
+
+IF !argv.status.size;
+  argv.status = ['online', 'inactive'];
+END;
+
+status = {
+  online = 0
+  offline = 0
+  inactive = 0
+};
+FOREACH val IN argv.status;
+  status.$val = 1;
+END;
+
+out = [];
+RETURN UNLESS status.item(argv.instance.status);
+
+FOREACH iface IN argv.instance.interfaces;
+  NEXT UNLESS iface.type.grep('^' _ argv.type _ '$').size();
+  FOREACH adv IN iface.advertised_ip;
+    NEXT UNLESS adv;
+    out.push(adv);
+  END;
+END;
+
+out = out.sort.unique;
+
+-%]