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-rw-r--r--tests/unittests/test_distros/test_netconfig.py351
1 files changed, 347 insertions, 4 deletions
diff --git a/tests/unittests/test_distros/test_netconfig.py b/tests/unittests/test_distros/test_netconfig.py
index bde3bb50..b89b74ff 100644
--- a/tests/unittests/test_distros/test_netconfig.py
+++ b/tests/unittests/test_distros/test_netconfig.py
@@ -17,6 +17,7 @@ from ..helpers import TestCase
from cloudinit import distros
from cloudinit.distros.parsers.sys_conf import SysConf
from cloudinit import helpers
+from cloudinit.net import eni
from cloudinit import settings
from cloudinit import util
@@ -28,10 +29,10 @@ iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.1.5
- netmask 255.255.255.0
- network 192.168.0.0
broadcast 192.168.1.0
gateway 192.168.1.254
+ netmask 255.255.255.0
+ network 192.168.0.0
auto eth1
iface eth1 inet dhcp
@@ -67,6 +68,100 @@ iface eth1 inet6 static
gateway 2607:f0d0:1002:0011::1
'''
+V1_NET_CFG = {'config': [{'name': 'eth0',
+
+ 'subnets': [{'address': '192.168.1.5',
+ 'broadcast': '192.168.1.0',
+ 'gateway': '192.168.1.254',
+ 'netmask': '255.255.255.0',
+ 'type': 'static'}],
+ 'type': 'physical'},
+ {'name': 'eth1',
+ 'subnets': [{'control': 'auto', 'type': 'dhcp4'}],
+ 'type': 'physical'}],
+ 'version': 1}
+
+V1_NET_CFG_OUTPUT = """
+# This file is generated from information provided by
+# the datasource. Changes to it will not persist across an instance.
+# To disable cloud-init's network configuration capabilities, write a file
+# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
+# network: {config: disabled}
+auto lo
+iface lo inet loopback
+
+auto eth0
+iface eth0 inet static
+ address 192.168.1.5
+ broadcast 192.168.1.0
+ gateway 192.168.1.254
+ netmask 255.255.255.0
+
+auto eth1
+iface eth1 inet dhcp
+"""
+
+V1_NET_CFG_IPV6 = {'config': [{'name': 'eth0',
+ 'subnets': [{'address':
+ '2607:f0d0:1002:0011::2',
+ 'gateway':
+ '2607:f0d0:1002:0011::1',
+ 'netmask': '64',
+ 'type': 'static'}],
+ 'type': 'physical'},
+ {'name': 'eth1',
+ 'subnets': [{'control': 'auto',
+ 'type': 'dhcp4'}],
+ 'type': 'physical'}],
+ 'version': 1}
+
+
+V1_TO_V2_NET_CFG_OUTPUT = """
+# This file is generated from information provided by
+# the datasource. Changes to it will not persist across an instance.
+# To disable cloud-init's network configuration capabilities, write a file
+# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
+# network: {config: disabled}
+network:
+ version: 2
+ ethernets:
+ eth0:
+ addresses:
+ - 192.168.1.5/255.255.255.0
+ gateway4: 192.168.1.254
+ eth1:
+ dhcp4: true
+"""
+
+V2_NET_CFG = {
+ 'ethernets': {
+ 'eth7': {
+ 'addresses': ['192.168.1.5/255.255.255.0'],
+ 'gateway4': '192.168.1.254'},
+ 'eth9': {
+ 'dhcp4': True}
+ },
+ 'version': 2
+}
+
+
+V2_TO_V2_NET_CFG_OUTPUT = """
+# This file is generated from information provided by
+# the datasource. Changes to it will not persist across an instance.
+# To disable cloud-init's network configuration capabilities, write a file
+# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
+# network: {config: disabled}
+network:
+ version: 2
+ ethernets:
+ eth7:
+ addresses:
+ - 192.168.1.5/255.255.255.0
+ gateway4: 192.168.1.254
+ eth9:
+ dhcp4: true
+"""
+
class WriteBuffer(object):
def __init__(self):
@@ -83,12 +178,14 @@ class WriteBuffer(object):
class TestNetCfgDistro(TestCase):
- def _get_distro(self, dname):
+ def _get_distro(self, dname, renderers=None):
cls = distros.fetch(dname)
cfg = settings.CFG_BUILTIN
cfg['system_info']['distro'] = dname
+ if renderers:
+ cfg['system_info']['network'] = {'renderers': renderers}
paths = helpers.Paths({})
- return cls(dname, cfg, paths)
+ return cls(dname, cfg.get('system_info'), paths)
def test_simple_write_ub(self):
ub_distro = self._get_distro('ubuntu')
@@ -116,6 +213,107 @@ class TestNetCfgDistro(TestCase):
self.assertEqual(str(write_buf).strip(), BASE_NET_CFG.strip())
self.assertEqual(write_buf.mode, 0o644)
+ def test_apply_network_config_eni_ub(self):
+ ub_distro = self._get_distro('ubuntu')
+ with ExitStack() as mocks:
+ write_bufs = {}
+
+ def replace_write(filename, content, mode=0o644, omode="wb"):
+ buf = WriteBuffer()
+ buf.mode = mode
+ buf.omode = omode
+ buf.write(content)
+ write_bufs[filename] = buf
+
+ # eni availability checks
+ mocks.enter_context(
+ mock.patch.object(util, 'which', return_value=True))
+ mocks.enter_context(
+ mock.patch.object(eni, 'available', return_value=True))
+ mocks.enter_context(
+ mock.patch.object(util, 'ensure_dir'))
+ mocks.enter_context(
+ mock.patch.object(util, 'write_file', replace_write))
+ mocks.enter_context(
+ mock.patch.object(os.path, 'isfile', return_value=False))
+
+ ub_distro.apply_network_config(V1_NET_CFG, False)
+
+ self.assertEqual(len(write_bufs), 2)
+ eni_name = '/etc/network/interfaces.d/50-cloud-init.cfg'
+ self.assertIn(eni_name, write_bufs)
+ write_buf = write_bufs[eni_name]
+ self.assertEqual(str(write_buf).strip(), V1_NET_CFG_OUTPUT.strip())
+ self.assertEqual(write_buf.mode, 0o644)
+
+ def test_apply_network_config_v1_to_netplan_ub(self):
+ renderers = ['netplan']
+ ub_distro = self._get_distro('ubuntu', renderers=renderers)
+ with ExitStack() as mocks:
+ write_bufs = {}
+
+ def replace_write(filename, content, mode=0o644, omode="wb"):
+ buf = WriteBuffer()
+ buf.mode = mode
+ buf.omode = omode
+ buf.write(content)
+ write_bufs[filename] = buf
+
+ mocks.enter_context(
+ mock.patch.object(util, 'which', return_value=True))
+ mocks.enter_context(
+ mock.patch.object(util, 'write_file', replace_write))
+ mocks.enter_context(
+ mock.patch.object(util, 'ensure_dir'))
+ mocks.enter_context(
+ mock.patch.object(util, 'subp', return_value=(0, 0)))
+ mocks.enter_context(
+ mock.patch.object(os.path, 'isfile', return_value=False))
+
+ ub_distro.apply_network_config(V1_NET_CFG, False)
+
+ self.assertEqual(len(write_bufs), 1)
+ netplan_name = '/etc/netplan/50-cloud-init.yaml'
+ self.assertIn(netplan_name, write_bufs)
+ write_buf = write_bufs[netplan_name]
+ self.assertEqual(str(write_buf).strip(),
+ V1_TO_V2_NET_CFG_OUTPUT.strip())
+ self.assertEqual(write_buf.mode, 0o644)
+
+ def test_apply_network_config_v2_passthrough_ub(self):
+ renderers = ['netplan']
+ ub_distro = self._get_distro('ubuntu', renderers=renderers)
+ with ExitStack() as mocks:
+ write_bufs = {}
+
+ def replace_write(filename, content, mode=0o644, omode="wb"):
+ buf = WriteBuffer()
+ buf.mode = mode
+ buf.omode = omode
+ buf.write(content)
+ write_bufs[filename] = buf
+
+ mocks.enter_context(
+ mock.patch.object(util, 'which', return_value=True))
+ mocks.enter_context(
+ mock.patch.object(util, 'write_file', replace_write))
+ mocks.enter_context(
+ mock.patch.object(util, 'ensure_dir'))
+ mocks.enter_context(
+ mock.patch.object(util, 'subp', return_value=(0, 0)))
+ mocks.enter_context(
+ mock.patch.object(os.path, 'isfile', return_value=False))
+
+ ub_distro.apply_network_config(V2_NET_CFG, False)
+
+ self.assertEqual(len(write_bufs), 1)
+ netplan_name = '/etc/netplan/50-cloud-init.yaml'
+ self.assertIn(netplan_name, write_bufs)
+ write_buf = write_bufs[netplan_name]
+ self.assertEqual(str(write_buf).strip(),
+ V2_TO_V2_NET_CFG_OUTPUT.strip())
+ self.assertEqual(write_buf.mode, 0o644)
+
def assertCfgEquals(self, blob1, blob2):
b1 = dict(SysConf(blob1.strip().splitlines()))
b2 = dict(SysConf(blob2.strip().splitlines()))
@@ -195,6 +393,79 @@ NETWORKING=yes
self.assertCfgEquals(expected_buf, str(write_buf))
self.assertEqual(write_buf.mode, 0o644)
+ def test_apply_network_config_rh(self):
+ renderers = ['sysconfig']
+ rh_distro = self._get_distro('rhel', renderers=renderers)
+
+ write_bufs = {}
+
+ def replace_write(filename, content, mode=0o644, omode="wb"):
+ buf = WriteBuffer()
+ buf.mode = mode
+ buf.omode = omode
+ buf.write(content)
+ write_bufs[filename] = buf
+
+ with ExitStack() as mocks:
+ # sysconfig availability checks
+ mocks.enter_context(
+ mock.patch.object(util, 'which', return_value=True))
+ mocks.enter_context(
+ mock.patch.object(util, 'write_file', replace_write))
+ mocks.enter_context(
+ mock.patch.object(util, 'load_file', return_value=''))
+ mocks.enter_context(
+ mock.patch.object(os.path, 'isfile', return_value=True))
+
+ rh_distro.apply_network_config(V1_NET_CFG, False)
+
+ self.assertEqual(len(write_bufs), 5)
+
+ # eth0
+ self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth0',
+ write_bufs)
+ write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth0']
+ expected_buf = '''
+# Created by cloud-init on instance boot automatically, do not edit.
+#
+BOOTPROTO=static
+DEVICE=eth0
+IPADDR=192.168.1.5
+NETMASK=255.255.255.0
+NM_CONTROLLED=no
+ONBOOT=yes
+TYPE=Ethernet
+USERCTL=no
+'''
+ self.assertCfgEquals(expected_buf, str(write_buf))
+ self.assertEqual(write_buf.mode, 0o644)
+
+ # eth1
+ self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth1',
+ write_bufs)
+ write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth1']
+ expected_buf = '''
+# Created by cloud-init on instance boot automatically, do not edit.
+#
+BOOTPROTO=dhcp
+DEVICE=eth1
+NM_CONTROLLED=no
+ONBOOT=yes
+TYPE=Ethernet
+USERCTL=no
+'''
+ self.assertCfgEquals(expected_buf, str(write_buf))
+ self.assertEqual(write_buf.mode, 0o644)
+
+ self.assertIn('/etc/sysconfig/network', write_bufs)
+ write_buf = write_bufs['/etc/sysconfig/network']
+ expected_buf = '''
+# Created by cloud-init v. 0.7
+NETWORKING=yes
+'''
+ self.assertCfgEquals(expected_buf, str(write_buf))
+ self.assertEqual(write_buf.mode, 0o644)
+
def test_write_ipv6_rhel(self):
rh_distro = self._get_distro('rhel')
@@ -274,6 +545,78 @@ IPV6_AUTOCONF=no
self.assertCfgEquals(expected_buf, str(write_buf))
self.assertEqual(write_buf.mode, 0o644)
+ def test_apply_network_config_ipv6_rh(self):
+ renderers = ['sysconfig']
+ rh_distro = self._get_distro('rhel', renderers=renderers)
+
+ write_bufs = {}
+
+ def replace_write(filename, content, mode=0o644, omode="wb"):
+ buf = WriteBuffer()
+ buf.mode = mode
+ buf.omode = omode
+ buf.write(content)
+ write_bufs[filename] = buf
+
+ with ExitStack() as mocks:
+ mocks.enter_context(
+ mock.patch.object(util, 'which', return_value=True))
+ mocks.enter_context(
+ mock.patch.object(util, 'write_file', replace_write))
+ mocks.enter_context(
+ mock.patch.object(util, 'load_file', return_value=''))
+ mocks.enter_context(
+ mock.patch.object(os.path, 'isfile', return_value=True))
+
+ rh_distro.apply_network_config(V1_NET_CFG_IPV6, False)
+
+ self.assertEqual(len(write_bufs), 5)
+
+ self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth0',
+ write_bufs)
+ write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth0']
+ expected_buf = '''
+# Created by cloud-init on instance boot automatically, do not edit.
+#
+BOOTPROTO=static
+DEVICE=eth0
+IPV6ADDR=2607:f0d0:1002:0011::2
+IPV6INIT=yes
+NETMASK=64
+NM_CONTROLLED=no
+ONBOOT=yes
+TYPE=Ethernet
+USERCTL=no
+'''
+ self.assertCfgEquals(expected_buf, str(write_buf))
+ self.assertEqual(write_buf.mode, 0o644)
+ self.assertIn('/etc/sysconfig/network-scripts/ifcfg-eth1',
+ write_bufs)
+ write_buf = write_bufs['/etc/sysconfig/network-scripts/ifcfg-eth1']
+ expected_buf = '''
+# Created by cloud-init on instance boot automatically, do not edit.
+#
+BOOTPROTO=dhcp
+DEVICE=eth1
+NM_CONTROLLED=no
+ONBOOT=yes
+TYPE=Ethernet
+USERCTL=no
+'''
+ self.assertCfgEquals(expected_buf, str(write_buf))
+ self.assertEqual(write_buf.mode, 0o644)
+
+ self.assertIn('/etc/sysconfig/network', write_bufs)
+ write_buf = write_bufs['/etc/sysconfig/network']
+ expected_buf = '''
+# Created by cloud-init v. 0.7
+NETWORKING=yes
+NETWORKING_IPV6=yes
+IPV6_AUTOCONF=no
+'''
+ self.assertCfgEquals(expected_buf, str(write_buf))
+ self.assertEqual(write_buf.mode, 0o644)
+
def test_simple_write_freebsd(self):
fbsd_distro = self._get_distro('freebsd')