diff options
| -rw-r--r-- | nova/network/manager.py | 143 |
1 files changed, 63 insertions, 80 deletions
diff --git a/nova/network/manager.py b/nova/network/manager.py index 12a0c5018..500f2a1e8 100644 --- a/nova/network/manager.py +++ b/nova/network/manager.py @@ -163,11 +163,22 @@ class NetworkManager(manager.Manager): def allocate_fixed_ip(self, context, instance_id, *args, **kwargs): """Gets a fixed ip from the pool.""" - raise NotImplementedError() + # TODO(vish): when this is called by compute, we can associate compute + # with a network, or a cluster of computes with a network + # and use that network here with a method like + # network_get_by_compute_host + network_ref = self.db.network_get_by_bridge(context, + FLAGS.flat_network_bridge) + address = self.db.fixed_ip_associate_pool(context.elevated(), + network_ref['id'], + instance_id) + self.db.fixed_ip_update(context, address, {'allocated': True}) + return address def deallocate_fixed_ip(self, context, address, *args, **kwargs): """Returns a fixed ip to the pool.""" - raise NotImplementedError() + self.db.fixed_ip_update(context, address, {'allocated': False}) + self.db.fixed_ip_disassociate(context.elevated(), address) def setup_fixed_ip(self, context, address): """Sets up rules for fixed ip.""" @@ -257,12 +268,58 @@ class NetworkManager(manager.Manager): def get_network_host(self, context): """Get the network host for the current context.""" - raise NotImplementedError() + network_ref = self.db.network_get_by_bridge(context, + FLAGS.flat_network_bridge) + # NOTE(vish): If the network has no host, use the network_host flag. + # This could eventually be a a db lookup of some sort, but + # a flag is easy to handle for now. + host = network_ref['host'] + if not host: + topic = self.db.queue_get_for(context, + FLAGS.network_topic, + FLAGS.network_host) + if FLAGS.fake_call: + return self.set_network_host(context, network_ref['id']) + host = rpc.call(context, + FLAGS.network_topic, + {"method": "set_network_host", + "args": {"network_id": network_ref['id']}}) + return host def create_networks(self, context, cidr, num_networks, network_size, - cidr_v6, *args, **kwargs): + cidr_v6, label, *args, **kwargs): """Create networks based on parameters.""" - raise NotImplementedError() + fixed_net = IPy.IP(cidr) + fixed_net_v6 = IPy.IP(cidr_v6) + significant_bits_v6 = 64 + count = 1 + for index in range(num_networks): + start = index * network_size + significant_bits = 32 - int(math.log(network_size, 2)) + cidr = "%s/%s" % (fixed_net[start], significant_bits) + project_net = IPy.IP(cidr) + net = {} + net['bridge'] = FLAGS.flat_network_bridge + net['dns'] = FLAGS.flat_network_dns + net['cidr'] = cidr + net['netmask'] = str(project_net.netmask()) + net['gateway'] = str(project_net[1]) + net['broadcast'] = str(project_net.broadcast()) + net['dhcp_start'] = str(project_net[2]) + if num_networks > 1: + net['label'] = "%s_%d" % (label, count) + else: + net['label'] = label + count += 1 + + if(FLAGS.use_ipv6): + cidr_v6 = "%s/%s" % (fixed_net_v6[0], significant_bits_v6) + net['cidr_v6'] = cidr_v6 + + network_ref = self.db.network_create_safe(context, net) + + if network_ref: + self._create_fixed_ips(context, network_ref['id']) @property def _bottom_reserved_ips(self): # pylint: disable-msg=R0201 @@ -332,84 +389,10 @@ class FlatManager(NetworkManager): for network in self.db.host_get_networks(ctxt, self.host): self._on_set_network_host(ctxt, network['id']) - def allocate_fixed_ip(self, context, instance_id, *args, **kwargs): - """Gets a fixed ip from the pool.""" - # TODO(vish): when this is called by compute, we can associate compute - # with a network, or a cluster of computes with a network - # and use that network here with a method like - # network_get_by_compute_host - network_ref = self.db.network_get_by_bridge(context, - FLAGS.flat_network_bridge) - address = self.db.fixed_ip_associate_pool(context.elevated(), - network_ref['id'], - instance_id) - self.db.fixed_ip_update(context, address, {'allocated': True}) - return address - - def deallocate_fixed_ip(self, context, address, *args, **kwargs): - """Returns a fixed ip to the pool.""" - self.db.fixed_ip_update(context, address, {'allocated': False}) - self.db.fixed_ip_disassociate(context.elevated(), address) - def setup_compute_network(self, context, instance_id): """Network is created manually.""" pass - def create_networks(self, context, cidr, num_networks, network_size, - cidr_v6, label, *args, **kwargs): - """Create networks based on parameters.""" - fixed_net = IPy.IP(cidr) - fixed_net_v6 = IPy.IP(cidr_v6) - significant_bits_v6 = 64 - count = 1 - for index in range(num_networks): - start = index * network_size - significant_bits = 32 - int(math.log(network_size, 2)) - cidr = "%s/%s" % (fixed_net[start], significant_bits) - project_net = IPy.IP(cidr) - net = {} - net['bridge'] = FLAGS.flat_network_bridge - net['dns'] = FLAGS.flat_network_dns - net['cidr'] = cidr - net['netmask'] = str(project_net.netmask()) - net['gateway'] = str(project_net[1]) - net['broadcast'] = str(project_net.broadcast()) - net['dhcp_start'] = str(project_net[2]) - if num_networks > 1: - net['label'] = "%s_%d" % (label, count) - else: - net['label'] = label - count += 1 - - if(FLAGS.use_ipv6): - cidr_v6 = "%s/%s" % (fixed_net_v6[0], significant_bits_v6) - net['cidr_v6'] = cidr_v6 - - network_ref = self.db.network_create_safe(context, net) - - if network_ref: - self._create_fixed_ips(context, network_ref['id']) - - def get_network_host(self, context): - """Get the network host for the current context.""" - network_ref = self.db.network_get_by_bridge(context, - FLAGS.flat_network_bridge) - # NOTE(vish): If the network has no host, use the network_host flag. - # This could eventually be a a db lookup of some sort, but - # a flag is easy to handle for now. - host = network_ref['host'] - if not host: - topic = self.db.queue_get_for(context, - FLAGS.network_topic, - FLAGS.network_host) - if FLAGS.fake_call: - return self.set_network_host(context, network_ref['id']) - host = rpc.call(context, - FLAGS.network_topic, - {"method": "set_network_host", - "args": {"network_id": network_ref['id']}}) - return host - def _on_set_network_host(self, context, network_id): """Called when this host becomes the host for a network.""" net = {} @@ -434,7 +417,7 @@ class FlatManager(NetworkManager): raise NotImplementedError() -class FlatDHCPManager(FlatManager): +class FlatDHCPManager(NetworkManager): """Flat networking with dhcp. FlatDHCPManager will start up one dhcp server to give out addresses. |