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from cloudinit import net
from cloudinit import util
from .helpers import TestCase
import base64
import copy
import gzip
import io
import json
import os
import yaml
DHCP_CONTENT_1 = """
DEVICE='eth0'
PROTO='dhcp'
IPV4ADDR='192.168.122.89'
IPV4BROADCAST='192.168.122.255'
IPV4NETMASK='255.255.255.0'
IPV4GATEWAY='192.168.122.1'
IPV4DNS0='192.168.122.1'
IPV4DNS1='0.0.0.0'
HOSTNAME='foohost'
DNSDOMAIN=''
NISDOMAIN=''
ROOTSERVER='192.168.122.1'
ROOTPATH=''
filename=''
UPTIME='21'
DHCPLEASETIME='3600'
DOMAINSEARCH='foo.com'
"""
DHCP_EXPECTED_1 = {
'name': 'eth0',
'type': 'physical',
'subnets': [{'broadcast': '192.168.122.255',
'control': 'manual',
'gateway': '192.168.122.1',
'dns_search': ['foo.com'],
'type': 'dhcp',
'netmask': '255.255.255.0',
'dns_nameservers': ['192.168.122.1']}],
}
STATIC_CONTENT_1 = """
DEVICE='eth1'
PROTO='static'
IPV4ADDR='10.0.0.2'
IPV4BROADCAST='10.0.0.255'
IPV4NETMASK='255.255.255.0'
IPV4GATEWAY='10.0.0.1'
IPV4DNS0='10.0.1.1'
IPV4DNS1='0.0.0.0'
HOSTNAME='foohost'
UPTIME='21'
DHCPLEASETIME='3600'
DOMAINSEARCH='foo.com'
"""
STATIC_EXPECTED_1 = {
'name': 'eth1',
'type': 'physical',
'subnets': [{'broadcast': '10.0.0.255', 'control': 'manual',
'gateway': '10.0.0.1',
'dns_search': ['foo.com'], 'type': 'static',
'netmask': '255.255.255.0',
'dns_nameservers': ['10.0.1.1']}],
}
EXAMPLE_ENI = """
auto lo
iface lo inet loopback
dns-nameservers 10.0.0.1
dns-search foo.com
auto eth0
iface eth0 inet static
address 1.2.3.12
netmask 255.255.255.248
broadcast 1.2.3.15
gateway 1.2.3.9
dns-nameservers 69.9.160.191 69.9.191.4
auto eth1
iface eth1 inet static
address 10.248.2.4
netmask 255.255.255.248
broadcast 10.248.2.7
"""
NETWORK_YAML_SMALL = """
version: 1
config:
# Physical interfaces.
- type: physical
name: eth0
mac_address: "c0:d6:9f:2c:e8:80"
subnets:
- type: dhcp4
- type: static
address: 192.168.21.3/24
dns_nameservers:
- 8.8.8.8
- 8.8.4.4
dns_search: barley.maas sach.maas
- type: physical
name: eth1
mac_address: "cf:d6:af:48:e8:80"
- type: nameserver
address:
- 1.2.3.4
- 5.6.7.8
search:
- wark.maas
"""
NETWORK_YAML_ALL = """
version: 1
config:
# Physical interfaces.
- type: physical
name: eth0
mac_address: "c0:d6:9f:2c:e8:80"
- type: physical
name: eth1
mac_address: "aa:d6:9f:2c:e8:80"
- type: physical
name: eth2
mac_address: "c0:bb:9f:2c:e8:80"
- type: physical
name: eth3
mac_address: "66:bb:9f:2c:e8:80"
- type: physical
name: eth4
mac_address: "98:bb:9f:2c:e8:80"
# specify how ifupdown should treat iface
# control is one of ['auto', 'hotplug', 'manual']
# with manual meaning ifup/ifdown should not affect the iface
# useful for things like iscsi root + dhcp
- type: physical
name: eth5
mac_address: "98:bb:9f:2c:e8:8a"
subnets:
- type: dhcp
control: manual
# VLAN interface.
- type: vlan
name: eth0.101
vlan_link: eth0
vlan_id: 101
mtu: 1500
subnets:
- type: static
address: 192.168.0.2/24
gateway: 192.168.0.1
dns_nameservers:
- 192.168.0.10
- 10.23.23.134
dns_search:
- barley.maas
- sacchromyces.maas
- brettanomyces.maas
- type: static
address: 192.168.2.10/24
# Bond.
- type: bond
name: bond0
# if 'mac_address' is omitted, the MAC is taken from
# the first slave.
mac_address: "aa:bb:cc:dd:ee:ff"
bond_interfaces:
- eth1
- eth2
params:
bond-mode: active-backup
subnets:
- type: dhcp6
# A Bond VLAN.
- type: vlan
name: bond0.200
vlan_link: bond0
vlan_id: 200
subnets:
- type: dhcp4
# A bridge.
- type: bridge
name: br0
bridge_interfaces:
- eth3
- eth4
ipv4_conf:
rp_filter: 1
proxy_arp: 0
forwarding: 1
ipv6_conf:
autoconf: 1
disable_ipv6: 1
use_tempaddr: 1
forwarding: 1
# basically anything in /proc/sys/net/ipv6/conf/.../
params:
bridge_stp: 'off'
bridge_fd: 0
bridge_maxwait: 0
subnets:
- type: static
address: 192.168.14.2/24
- type: static
address: 2001:1::1/64 # default to /64
# A global nameserver.
- type: nameserver
address: 8.8.8.8
search: barley.maas
# global nameservers and search in list form
- type: nameserver
address:
- 4.4.4.4
- 8.8.4.4
search:
- wark.maas
- foobar.maas
# A global route.
- type: route
destination: 10.0.0.0/8
gateway: 11.0.0.1
metric: 3
"""
class TestNetConfigParsing(TestCase):
simple_cfg = {
'config': [{"type": "physical", "name": "eth0",
"mac_address": "c0:d6:9f:2c:e8:80",
"subnets": [{"type": "dhcp"}]}]}
def test_klibc_convert_dhcp(self):
found = net._klibc_to_config_entry(DHCP_CONTENT_1)
self.assertEqual(found, ('eth0', DHCP_EXPECTED_1))
def test_klibc_convert_static(self):
found = net._klibc_to_config_entry(STATIC_CONTENT_1)
self.assertEqual(found, ('eth1', STATIC_EXPECTED_1))
def test_config_from_klibc_net_cfg(self):
files = []
pairs = (('net-eth0.cfg', DHCP_CONTENT_1),
('net-eth1.cfg', STATIC_CONTENT_1))
macs = {'eth1': 'b8:ae:ed:75:ff:2b',
'eth0': 'b8:ae:ed:75:ff:2a'}
dhcp = copy.deepcopy(DHCP_EXPECTED_1)
dhcp['mac_address'] = macs['eth0']
static = copy.deepcopy(STATIC_EXPECTED_1)
static['mac_address'] = macs['eth1']
expected = {'version': 1, 'config': [dhcp, static]}
with util.tempdir() as tmpd:
for fname, content in pairs:
fp = os.path.join(tmpd, fname)
files.append(fp)
util.write_file(fp, content)
found = net.config_from_klibc_net_cfg(files=files, mac_addrs=macs)
self.assertEqual(found, expected)
def test_cmdline_with_b64(self):
data = base64.b64encode(json.dumps(self.simple_cfg).encode())
encoded_text = data.decode()
cmdline = 'ro network-config=' + encoded_text + ' root=foo'
found = net.read_kernel_cmdline_config(cmdline=cmdline)
self.assertEqual(found, self.simple_cfg)
def test_cmdline_with_b64_gz(self):
data = _gzip_data(json.dumps(self.simple_cfg).encode())
encoded_text = base64.b64encode(data).decode()
cmdline = 'ro network-config=' + encoded_text + ' root=foo'
found = net.read_kernel_cmdline_config(cmdline=cmdline)
self.assertEqual(found, self.simple_cfg)
class TestEniRoundTrip(TestCase):
def testsimple_convert_and_render(self):
network_config = net.convert_eni_data(EXAMPLE_ENI)
ns = net.parse_net_config_data(network_config)
eni = net.render_interfaces(ns)
print("Eni looks like:\n%s" % eni)
raise Exception("FOO")
def testsimple_render_all(self):
network_config = yaml.load(NETWORK_YAML_ALL)
ns = net.parse_net_config_data(network_config)
eni = net.render_interfaces(ns)
print("Eni looks like:\n%s" % eni)
raise Exception("FOO")
def testsimple_render_small(self):
network_config = yaml.load(NETWORK_YAML_SMALL)
ns = net.parse_net_config_data(network_config)
eni = net.render_interfaces(ns)
print("Eni looks like:\n%s" % eni)
raise Exception("FOO")
def _gzip_data(data):
with io.BytesIO() as iobuf:
gzfp = gzip.GzipFile(mode="wb", fileobj=iobuf)
gzfp.write(data)
gzfp.close()
return iobuf.getvalue()
|
