def create_subnet(cls,
network,
gateway='',
cidr=None,
mask_bits=None,
ip_version=None,
client=None,
**kwargs):
"""Wrapper utility that returns a test subnet."""
# allow tests to use admin client
if not client:
client = cls.client
# The cidr and mask_bits depend on the ip version.
ip_version = ip_version if ip_version is not None else cls._ip_version
gateway_not_set = gateway == ''
if ip_version == 4:
cidr = cidr or netaddr.IPNetwork(
config.safe_get_config_value('network',
'project_network_cidr'))
mask_bits = (mask_bits or config.safe_get_config_value(
'network', 'project_network_mask_bits'))
elif ip_version == 6:
cidr = (cidr or netaddr.IPNetwork(
config.safe_get_config_value('network',
'project_network_v6_cidr')))
mask_bits = (mask_bits or config.safe_get_config_value(
'network', 'project_network_v6_mask_bits'))
# Find a cidr that is not in use yet and create a subnet with it
for subnet_cidr in cidr.subnet(mask_bits):
if gateway_not_set:
gateway_ip = str(netaddr.IPAddress(subnet_cidr) + 1)
else:
gateway_ip = gateway
try:
body = client.create_subnet(network_id=network['id'],
cidr=str(subnet_cidr),
ip_version=ip_version,
gateway_ip=gateway_ip,
**kwargs)
break
except lib_exc.BadRequest as e:
is_overlapping_cidr = 'overlaps with another subnet' in str(e)
if not is_overlapping_cidr:
raise
else:
message = 'Available CIDR for subnet creation could not be found'
raise ValueError(message)
subnet = body['subnet']
if client is cls.client:
cls.subnets.append(subnet)
else:
cls.admin_subnets.append(subnet)
return subnet
def test_update_port_with_cidr_address_pair(self):
# Update allowed address pair with cidr
cidr = str(
netaddr.IPNetwork(
config.safe_get_config_value('network',
'project_network_cidr')))
self._update_port_with_address(cidr)
def _create_subnet(self, network, ip_version):
if ip_version == lib_constants.IP_VERSION_4:
cidr = netaddr.IPNetwork('20.0.0.0/24')
mask_bits = config.safe_get_config_value(
'network', 'project_network_mask_bits')
elif ip_version == lib_constants.IP_VERSION_6:
cidr = netaddr.IPNetwork('20:db8::/64')
mask_bits = config.safe_get_config_value(
'network', 'project_network_v6_mask_bits')
subnet_cidr = next(cidr.subnet(mask_bits))
prefix_len = subnet_cidr.prefixlen
subnet = self.create_subnet(network,
cidr=subnet_cidr,
enable_dhcp=False,
mask_bits=mask_bits,
ip_version=ip_version)
return subnet, prefix_len
def test_subport_connectivity(self):
vlan_tag = 10
vlan_network = self.create_network()
new_subnet_cidr = get_next_subnet(
config.safe_get_config_value('network', 'project_network_cidr'))
self.create_subnet(vlan_network, cidr=new_subnet_cidr)
servers = [
self._create_server_with_port_and_subport(vlan_network, vlan_tag)
for i in range(2)
]
for server in servers:
self._wait_for_server(server)
# Configure VLAN interfaces on server
command = CONFIGURE_VLAN_INTERFACE_COMMANDS % {'tag': vlan_tag}
server['ssh_client'].exec_command(command)
# Ping from server1 to server2 via VLAN interface
servers[0]['ssh_client'].ping_host(
servers[1]['subport']['fixed_ips'][0]['ip_address'])
def test_subport_connectivity(self):
vlan_tag = 10
vlan_network = self.create_network()
new_subnet_cidr = get_next_subnet(
config.safe_get_config_value('network', 'project_network_cidr'))
self.create_subnet(vlan_network, gateway=None, cidr=new_subnet_cidr)
servers = [
self._create_server_with_port_and_subport(vlan_network, vlan_tag)
for i in range(2)
]
for server in servers:
self._wait_for_server(server)
# Configure VLAN interfaces on server
command = CONFIGURE_VLAN_INTERFACE_COMMANDS % {'tag': vlan_tag}
server['ssh_client'].exec_command(command)
out = server['ssh_client'].exec_command(
'PATH=$PATH:/usr/sbin;ip addr list')
LOG.debug("Interfaces on server %s: %s", server, out)
# Ping from server1 to server2 via VLAN interface should fail because
# we haven't allowed ICMP
self.check_remote_connectivity(
servers[0]['ssh_client'],
servers[1]['subport']['fixed_ips'][0]['ip_address'],
should_succeed=False)
# allow intra-securitygroup traffic
self.client.create_security_group_rule(
security_group_id=self.secgroup['security_group']['id'],
direction='ingress',
ethertype='IPv4',
protocol='icmp',
remote_group_id=self.secgroup['security_group']['id'])
self.check_remote_connectivity(
servers[0]['ssh_client'],
servers[1]['subport']['fixed_ips'][0]['ip_address'],
should_succeed=True)
def resource_setup(cls):
super(RoutersTest, cls).resource_setup()
cls.tenant_cidr = (config.safe_get_config_value(
'network', 'project_network_cidr') if cls._ip_version == 4 else
config.safe_get_config_value(
'network', 'project_network_v6_cidr'))
