example:

# nova-manage network list
CIDR                    netmask         dhcp_start      DNS            
xx.xx.35.0/25           255.255.255.128 xx.xx.35.2      None           
xx.xx.36.0/25           255.255.255.128 xx.xx.36.2      None

(DNS set to None because networks not yet used..)

3 files changed, 26 insertions, 0 deletions

diff --git a/bin/nova-manage b/bin/nova-manage
index e4c0684c4..86f7b8eff 100755
--- a/bin/nova-manage
+++ b/bin/nova-manage
@@ -499,6 +499,18 @@ class NetworkCommands(object):
                                     vlan_start=int(vlan_start),
                                     vpn_start=int(vpn_start))
 
+    def list(self):
+        """List all created networks"""
+        print "%-18s\t%-15s\t%-15s\t%-15s" % (_('network'),
+                                              _('netmask'),
+                                              _('start address'),
+                                              'DNS')
+        for network in db.network_get_all(context.get_admin_context()):
+            print "%-18s\t%-15s\t%-15s\t%-15s" % (network.cidr,
+                                network.netmask,
+                                network.dhcp_start,
+                                network.dns)
+
 
 class ServiceCommands(object):
     """Enable and disable running services"""
diff --git a/nova/db/api.py b/nova/db/api.py
index 789cb8ebb..d06f3731f 100644
--- a/nova/db/api.py
+++ b/nova/db/api.py
@@ -500,6 +500,11 @@ def network_get(context, network_id):
     return IMPL.network_get(context, network_id)
 
 
+def network_get_all(context):
+    """Return all defined networks."""
+    return IMPL.network_get_all(context)
+
+
 # pylint: disable-msg=C0103
 def network_get_associated_fixed_ips(context, network_id):
     """Get all network's ips that have been associated."""
diff --git a/nova/db/sqlalchemy/api.py b/nova/db/sqlalchemy/api.py
index 02855e7a9..65436ab0f 100644
--- a/nova/db/sqlalchemy/api.py
+++ b/nova/db/sqlalchemy/api.py
@@ -1056,6 +1056,15 @@ def network_get(context, network_id, session=None):
     return result
 
 
+@require_admin_context
+def network_get_all(context):
+    session = get_session()
+    result = session.query(models.Network)
+    if not result:
+        raise exception.NotFound(_('No networks defined'))
+    return result
+
+
 # NOTE(vish): pylint complains because of the long method name, but
 #             it fits with the names of the rest of the methods
 # pylint: disable-msg=C0103