Map Node/IP in ssconf IP lists

Map the node hostname with its primary/secondary ganeti IP in ssconf.
In this way a node can discover which are its IPs simply grepping ssconf files,
thus avoiding checks depending on network configuration.

Signed-off-by: Luca Bigliardi <shammash@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

lib/config.py

@@ -1148,8 +1148,10 @@ class ConfigWriter:
     instance_names = utils.NiceSort(self._UnlockedGetInstanceList())
     node_names = utils.NiceSort(self._UnlockedGetNodeList())
     node_info = [self._UnlockedGetNodeInfo(name) for name in node_names]
-    node_pri_ips = [ninfo.primary_ip for ninfo in node_info]
-    node_snd_ips = [ninfo.secondary_ip for ninfo in node_info]
+    node_pri_ips = ["%s,%s" % (ninfo.name, ninfo.primary_ip)
+                    for ninfo in node_info]
+    node_snd_ips = ["%s,%s" % (ninfo.name, ninfo.secondary_ip)
+                    for ninfo in node_info]
 
     instance_data = fn(instance_names)
     off_data = fn(node.name for node in node_info if node.offline)