diff options
Diffstat (limited to 'os_net_config/objects.py')
| -rw-r--r-- | os_net_config/objects.py | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/os_net_config/objects.py b/os_net_config/objects.py index b08dc46..4f3e0d5 100644 --- a/os_net_config/objects.py +++ b/os_net_config/objects.py @@ -44,6 +44,10 @@ def object_from_json(json): return LinuxBond.from_json(json) elif obj_type == "linux_bridge": return LinuxBridge.from_json(json) + elif obj_type == "ivs_bridge": + return IvsBridge.from_json(json) + elif obj_type == "ivs_interface": + return IvsInterface.from_json(json) def _get_required_field(json, name, object_name): @@ -166,6 +170,8 @@ class _BaseOpts(object): self.dns_servers = dns_servers self.bridge_name = None # internal self.linux_bridge_name = None # internal + self.ivs_bridge_name = None # internal + self.linux_bond_name = None # internal self.ovs_port = False # internal self.primary_interface_name = None # internal @@ -290,6 +296,32 @@ class Vlan(_BaseOpts): return Vlan(device, vlan_id, *opts) +class IvsInterface(_BaseOpts): + """Base class for ivs interfaces.""" + + def __init__(self, vlan_id, name='ivs', use_dhcp=False, use_dhcpv6=False, + addresses=None, routes=None, mtu=1500, primary=False, + nic_mapping=None, persist_mapping=False, defroute=True, + dhclient_args=None, dns_servers=None): + addresses = addresses or [] + routes = routes or [] + dns_servers = dns_servers or [] + name_vlan = '%s%i' % (name, vlan_id) + super(IvsInterface, self).__init__(name_vlan, use_dhcp, use_dhcpv6, + addresses, routes, mtu, primary, + nic_mapping, persist_mapping, + defroute, dhclient_args, + dns_servers) + self.vlan_id = int(vlan_id) + + @staticmethod + def from_json(json): + name = json.get('name') + vlan_id = _get_required_field(json, 'vlan_id', 'IvsInterface') + opts = _BaseOpts.base_opts_from_json(json) + return IvsInterface(vlan_id, name, *opts) + + class OvsBridge(_BaseOpts): """Base class for OVS bridges.""" @@ -405,6 +437,67 @@ class LinuxBridge(_BaseOpts): dns_servers=dns_servers) +class IvsBridge(_BaseOpts): + """Base class for IVS bridges. + + Indigo Virtual Switch (IVS) is a virtual switch for Linux. + It is compatible with the KVM hypervisor and leveraging the + Open vSwitch kernel module for packet forwarding. There are + three major differences between IVS and OVS: + 1. Each node can have at most one ivs, no name required. + 2. Bond is not allowed to attach to an ivs. It is the SDN + controller's job to dynamically form bonds on ivs. + 3. IP address can only be statically assigned. + """ + + def __init__(self, name='ivs', use_dhcp=False, use_dhcpv6=False, + addresses=None, routes=None, mtu=1500, members=None, + nic_mapping=None, persist_mapping=False, defroute=True, + dhclient_args=None, dns_servers=None): + addresses = addresses or [] + routes = routes or [] + members = members or [] + dns_servers = dns_servers or [] + super(IvsBridge, self).__init__(name, use_dhcp, use_dhcpv6, + addresses, routes, mtu, False, + nic_mapping, persist_mapping, + defroute, dhclient_args, dns_servers) + self.members = members + for member in self.members: + if isinstance(member, OvsBond) or isinstance(member, LinuxBond): + msg = 'IVS does not support bond interfaces.' + raise InvalidConfigException(msg) + member.ivs_bridge_name = name + member.ovs_port = False + self.primary_interface_name = None # ivs doesn't use primary intf + + @staticmethod + def from_json(json): + name = 'ivs' + (use_dhcp, use_dhcpv6, addresses, routes, mtu, nic_mapping, + persist_mapping, defroute, dhclient_args, + dns_servers) = _BaseOpts.base_opts_from_json( + json, include_primary=False) + members = [] + + # members + members_json = json.get('members') + if members_json: + if isinstance(members_json, list): + for member in members_json: + members.append(object_from_json(member)) + else: + msg = 'Members must be a list.' + raise InvalidConfigException(msg) + + return IvsBridge(name, use_dhcp=use_dhcp, use_dhcpv6=use_dhcpv6, + addresses=addresses, routes=routes, mtu=mtu, + members=members, nic_mapping=nic_mapping, + persist_mapping=persist_mapping, defroute=defroute, + dhclient_args=dhclient_args, + dns_servers=dns_servers) + + class LinuxBond(_BaseOpts): """Base class for Linux bonds.""" @@ -423,6 +516,7 @@ class LinuxBond(_BaseOpts): self.members = members self.bonding_options = bonding_options for member in self.members: + member.linux_bond_name = name if member.primary: if self.primary_interface_name: msg = 'Only one primary interface allowed per bond.' |