def test_get_ovs_veths_bridge_provision_wl(self):
# Bridge needs a veth pair.
self._update_context({"provision_wl_net_name": "net3"})
veths = networks.get_ovs_veths(self.context, ["net3"], None)
expected = [{
"name": "p-br0-phy",
"peer": "p-br0-ovs",
"bridge": "br0",
"mtu": None,
}]
self.assertEqual(expected, veths)
def test_get_ovs_veths_bridge_vlan(self):
# VLAN on a bridge needs a veth pair.
self._update_context({"external_net_names": ["net4"]})
veths = networks.get_ovs_veths(self.context, ["net3", "net4"], None)
expected = [{
"name": "p-br0-phy",
"peer": "p-br0-ovs",
"bridge": "br0",
"mtu": None,
}]
self.assertEqual(expected, veths)
def test_get_ovs_veths_bridge_vlan_mtu(self):
# Use the MTU of VLAN on a bridge.
self._update_context({
"external_net_names": ["net4"],
"net4_mtu": 1400
})
veths = networks.get_ovs_veths(self.context, ["net3", "net4"], None)
expected = [{
"name": "p-br0-phy",
"peer": "p-br0-ovs",
"bridge": "br0",
"mtu": 1400,
}]
self.assertEqual(expected, veths)
def networkd_netdevs(context, names, inventory_hostname=None):
"""Return a dict representation of networkd NetDev configuration.
The format is compatible with the systemd_networkd_netdev variable in the
stackhpc.ansible_role_systemd_networkd role.
:param context: a Jinja2 Context object.
:param names: List of names of networks.
:param inventory_hostname: Ansible inventory hostname.
:returns: a dict representation of networkd NetDev configuration.
"""
# Prefix for configuration file names.
prefix = utils.get_hostvar(context, "networkd_prefix", inventory_hostname)
result = {}
# VLANs.
for name in networks.net_select_vlan_interfaces(context, names,
inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
netdev = _vlan_netdev(context, name, inventory_hostname)
_add_to_result(result, prefix, device, netdev)
# Bridges.
for name in networks.net_select_bridges(context, names,
inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
netdev = _bridge_netdev(context, name, inventory_hostname)
_add_to_result(result, prefix, device, netdev)
# Bonds.
for name in networks.net_select_bonds(context, names, inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
netdev = _bond_netdev(context, name, inventory_hostname)
_add_to_result(result, prefix, device, netdev)
# Virtual Ethernet pairs.
veths = networks.get_ovs_veths(context, names, inventory_hostname)
for veth in veths:
netdev = _veth_netdev(context, veth, inventory_hostname)
device = veth['name']
_add_to_result(result, prefix, device, netdev)
return result
def networkd_networks(context, names, inventory_hostname=None):
"""Return a dict representation of networkd network configuration.
The format is compatible with the systemd_networkd_network variable in the
stackhpc.ansible_role_systemd_networkd role.
:param context: a Jinja2 Context object.
:param names: List of names of networks.
:param inventory_hostname: Ansible inventory hostname.
:returns: a dict representation of networkd network configuration.
"""
# TODO(mgoddard): some attributes are currently not supported for
# systemd-networkd: rules, route options, ethtool_opts, zone,
# allowed addresses
# Build up some useful mappings.
bridge_port_to_bridge = {}
bond_member_to_bond = {}
interface_to_vlans = {}
# List of all interfaces.
interfaces = [
networks.net_interface(context, name, inventory_hostname)
for name in names
]
# Map bridge ports to bridges.
for name in networks.net_select_bridges(context, names,
inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
for port in networks.net_bridge_ports(context, name,
inventory_hostname):
bridge_port_to_bridge[port] = device
# Map bond members to bonds.
for name in networks.net_select_bonds(context, names, inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
for member in networks.net_bond_slaves(context, name,
inventory_hostname):
bond_member_to_bond[member] = device
# Map interfaces to lists of VLAN subinterfaces.
for name in networks.net_select_vlans(context, names, inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
vlan = networks.net_vlan(context, name, inventory_hostname)
mtu = networks.net_mtu(context, name, inventory_hostname)
parent = networks.get_vlan_parent(device, vlan)
vlan_interfaces = interface_to_vlans.setdefault(parent, [])
vlan_interfaces.append({"device": device, "mtu": mtu})
# Prefix for configuration file names.
prefix = utils.get_hostvar(context, "networkd_prefix", inventory_hostname)
result = {}
# Configured networks.
for name in names:
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
bridge = bridge_port_to_bridge.get(device)
bond = bond_member_to_bond.get(device)
vlan_interfaces = interface_to_vlans.get(device, [])
net = _network(context, name, inventory_hostname, bridge, bond,
[vlan["device"] for vlan in vlan_interfaces])
_add_to_result(result, prefix, device, net)
# VLAN parent interfaces that are not in configured networks, bridge ports
# or bond members.
implied_vlan_parents = (set(interface_to_vlans) - set(interfaces) -
set(bridge_port_to_bridge) -
set(bond_member_to_bond))
for device in implied_vlan_parents:
vlan_interfaces = interface_to_vlans[device]
mtu = max([vlan["mtu"] for vlan in vlan_interfaces])
net = _vlan_parent_network(
device, mtu, [vlan["device"] for vlan in vlan_interfaces])
_add_to_result(result, prefix, device, net)
# Bridge ports that are not in configured networks.
for name in networks.net_select_bridges(context, names,
inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
bridge_ports = networks.net_bridge_ports(context, name,
inventory_hostname)
for port in set(bridge_ports) - set(interfaces):
vlan_interfaces = interface_to_vlans.get(port, [])
net = _bridge_port_network(
context, name, port, inventory_hostname,
[vlan["device"] for vlan in vlan_interfaces])
_add_to_result(result, prefix, port, net)
# Bond members that are not in configured networks.
for name in networks.net_select_bonds(context, names, inventory_hostname):
device = networks.get_and_validate_interface(context, name,
inventory_hostname)
bond_members = networks.net_bond_slaves(context, name,
inventory_hostname)
for member in set(bond_members) - set(interfaces):
vlan_interfaces = interface_to_vlans.get(member, [])
net = _bond_member_network(
context, name, member, inventory_hostname,
[vlan["device"] for vlan in vlan_interfaces])
_add_to_result(result, prefix, member, net)
# Virtual Ethernet pairs for Open vSwitch.
veths = networks.get_ovs_veths(context, names, inventory_hostname)
for veth in veths:
net = _veth_network(context, veth, inventory_hostname)
device = veth['name']
_add_to_result(result, prefix, device, net)
net = _veth_peer_network(context, veth, inventory_hostname)
device = veth['peer']
_add_to_result(result, prefix, device, net)
return result
def test_get_ovs_veths_eth_vlan(self):
# VLAN on Ethernet does not need a veth pair.
self._update_context({"external_net_names": ["net2"]})
veths = networks.get_ovs_veths(self.context, ["net2"], None)
self.assertEqual([], veths)
def test_get_ovs_veths_empty(self):
veths = networks.get_ovs_veths(self.context, [], None)
self.assertEqual([], veths)
