Remove device_exists in LinuxBridgeManager
LinuxBridgeManager is adding a device_exists method instead of using the one in ip_lib as the rest of the codebase Change-Id: Ibeb95be76a1e1b20c69841e708c2a2cbf1cbe05a Closes-Bug: #1302463
This commit is contained in:
rossella
parent
5ec4ec5e57
commit
49502246ef
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@ -86,15 +86,6 @@ class LinuxBridgeManager:
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# Store network mapping to segments
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self.network_map = {}
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def device_exists(self, device):
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"""Check if ethernet device exists."""
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try:
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utils.execute(['ip', 'link', 'show', 'dev', device],
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root_helper=self.root_helper)
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except RuntimeError:
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return False
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return True
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def interface_exists_on_bridge(self, bridge, interface):
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directory = '/sys/class/net/%s/brif' % bridge
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for filename in os.listdir(directory):
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@ -139,7 +130,7 @@ class LinuxBridgeManager:
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return neutron_bridge_list
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def get_interfaces_on_bridge(self, bridge_name):
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if self.device_exists(bridge_name):
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if ip_lib.device_exists(bridge_name, root_helper=self.root_helper):
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bridge_interface_path = BRIDGE_INTERFACES_FS.replace(
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BRIDGE_NAME_PLACEHOLDER, bridge_name)
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return os.listdir(bridge_interface_path)
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@ -221,7 +212,7 @@ class LinuxBridgeManager:
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def ensure_vlan(self, physical_interface, vlan_id):
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"""Create a vlan unless it already exists."""
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interface = self.get_subinterface_name(physical_interface, vlan_id)
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if not self.device_exists(interface):
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if not ip_lib.device_exists(interface, root_helper=self.root_helper):
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LOG.debug(_("Creating subinterface %(interface)s for "
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"VLAN %(vlan_id)s on interface "
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"%(physical_interface)s"),
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@ -241,7 +232,7 @@ class LinuxBridgeManager:
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def ensure_vxlan(self, segmentation_id):
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"""Create a vxlan unless it already exists."""
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interface = self.get_vxlan_device_name(segmentation_id)
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if not self.device_exists(interface):
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if not ip_lib.device_exists(interface, root_helper=self.root_helper):
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LOG.debug(_("Creating vxlan interface %(interface)s for "
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"VNI %(segmentation_id)s"),
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{'interface': interface,
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@ -291,7 +282,7 @@ class LinuxBridgeManager:
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def ensure_bridge(self, bridge_name, interface=None, ips=None,
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gateway=None):
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"""Create a bridge unless it already exists."""
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if not self.device_exists(bridge_name):
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if not ip_lib.device_exists(bridge_name, root_helper=self.root_helper):
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LOG.debug(_("Starting bridge %(bridge_name)s for subinterface "
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"%(interface)s"),
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{'bridge_name': bridge_name, 'interface': interface})
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@ -369,7 +360,8 @@ class LinuxBridgeManager:
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If a VIF has been plugged into a network, this function will
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add the corresponding tap device to the relevant bridge.
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"""
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if not self.device_exists(tap_device_name):
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if not ip_lib.device_exists(tap_device_name,
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root_helper=self.root_helper):
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LOG.debug(_("Tap device: %s does not exist on "
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"this host, skipped"), tap_device_name)
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return False
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@ -413,7 +405,7 @@ class LinuxBridgeManager:
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tap_device_name)
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def delete_vlan_bridge(self, bridge_name):
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if self.device_exists(bridge_name):
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if ip_lib.device_exists(bridge_name, root_helper=self.root_helper):
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interfaces_on_bridge = self.get_interfaces_on_bridge(bridge_name)
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for interface in interfaces_on_bridge:
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self.remove_interface(bridge_name, interface)
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@ -456,7 +448,7 @@ class LinuxBridgeManager:
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del self.network_map[network_id]
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def remove_interface(self, bridge_name, interface_name):
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if self.device_exists(bridge_name):
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if ip_lib.device_exists(bridge_name, root_helper=self.root_helper):
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if not self.is_device_on_bridge(interface_name):
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return True
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LOG.debug(_("Removing device %(interface_name)s from bridge "
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@ -479,7 +471,7 @@ class LinuxBridgeManager:
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return False
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def delete_vlan(self, interface):
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if self.device_exists(interface):
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if ip_lib.device_exists(interface, root_helper=self.root_helper):
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LOG.debug(_("Deleting subinterface %s for vlan"), interface)
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if utils.execute(['ip', 'link', 'set', interface, 'down'],
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root_helper=self.root_helper):
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@ -490,7 +482,7 @@ class LinuxBridgeManager:
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LOG.debug(_("Done deleting subinterface %s"), interface)
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def delete_vxlan(self, interface):
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if self.device_exists(interface):
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if ip_lib.device_exists(interface, root_helper=self.root_helper):
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LOG.debug(_("Deleting vxlan interface %s for vlan"),
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interface)
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int_vxlan = self.ip.device(interface)
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@ -527,8 +519,9 @@ class LinuxBridgeManager:
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'mode': 'VXLAN UCAST'})
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return False
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for segmentation_id in range(1, constants.MAX_VXLAN_VNI + 1):
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if not self.device_exists(
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self.get_vxlan_device_name(segmentation_id)):
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if not ip_lib.device_exists(
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self.get_vxlan_device_name(segmentation_id),
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root_helper=self.root_helper):
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break
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else:
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LOG.error(_('No valid Segmentation ID to perform UCAST test.'))
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@ -168,12 +168,6 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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self.lbm = linuxbridge_neutron_agent.LinuxBridgeManager(
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self.interface_mappings, self.root_helper)
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def test_device_exists(self):
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with mock.patch.object(utils, 'execute') as execute_fn:
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self.assertTrue(self.lbm.device_exists("eth0"))
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execute_fn.side_effect = RuntimeError()
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self.assertFalse(self.lbm.device_exists("eth0"))
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def test_interface_exists_on_bridge(self):
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with mock.patch.object(os, 'listdir') as listdir_fn:
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listdir_fn.return_value = ["abc"]
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@ -223,15 +217,16 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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def test_get_interfaces_on_bridge(self):
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with contextlib.nested(
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mock.patch.object(utils, 'execute'),
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mock.patch.object(os, 'listdir')
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) as (exec_fn, listdir_fn):
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mock.patch.object(os, 'listdir'),
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mock.patch.object(ip_lib, 'device_exists', return_value=True)
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) as (exec_fn, listdir_fn, dev_exists_fn):
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listdir_fn.return_value = ["qbr1"]
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self.assertEqual(self.lbm.get_interfaces_on_bridge("br0"),
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["qbr1"])
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def test_get_interfaces_on_bridge_not_existing(self):
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self.lbm.device_exists = mock.Mock(return_value=False)
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self.assertEqual([], self.lbm.get_interfaces_on_bridge("br0"))
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with mock.patch.object(ip_lib, 'device_exists', return_value=False):
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self.assertEqual([], self.lbm.get_interfaces_on_bridge("br0"))
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def test_get_tap_devices_count(self):
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with mock.patch.object(os, 'listdir') as listdir_fn:
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@ -337,7 +332,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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ens_fn.assert_called_once_with("brq54321")
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def test_ensure_vlan(self):
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with mock.patch.object(self.lbm, 'device_exists') as de_fn:
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with mock.patch.object(ip_lib, 'device_exists') as de_fn:
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de_fn.return_value = True
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self.assertEqual(self.lbm.ensure_vlan("eth0", "1"), "eth0.1")
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de_fn.return_value = False
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@ -353,7 +348,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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seg_id = "12345678"
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self.lbm.local_int = 'eth0'
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self.lbm.vxlan_mode = lconst.VXLAN_MCAST
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with mock.patch.object(self.lbm, 'device_exists') as de_fn:
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with mock.patch.object(ip_lib, 'device_exists') as de_fn:
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de_fn.return_value = True
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self.assertEqual(self.lbm.ensure_vxlan(seg_id), "vxlan-" + seg_id)
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de_fn.return_value = False
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@ -401,7 +396,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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def test_ensure_bridge(self):
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with contextlib.nested(
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mock.patch.object(self.lbm, 'device_exists'),
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mock.patch.object(ip_lib, 'device_exists'),
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mock.patch.object(utils, 'execute'),
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mock.patch.object(self.lbm, 'update_interface_ip_details'),
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mock.patch.object(self.lbm, 'interface_exists_on_bridge'),
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@ -466,7 +461,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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self.assertTrue(vlbr_fn.called)
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def test_add_tap_interface(self):
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with mock.patch.object(self.lbm, "device_exists") as de_fn:
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with mock.patch.object(ip_lib, "device_exists") as de_fn:
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de_fn.return_value = False
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self.assertFalse(
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self.lbm.add_tap_interface("123", p_const.TYPE_VLAN,
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@ -511,7 +506,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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def test_delete_vlan_bridge(self):
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with contextlib.nested(
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mock.patch.object(self.lbm, "device_exists"),
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mock.patch.object(ip_lib, "device_exists"),
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mock.patch.object(self.lbm, "get_interfaces_on_bridge"),
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mock.patch.object(self.lbm, "remove_interface"),
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mock.patch.object(self.lbm, "get_interface_details"),
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@ -534,7 +529,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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def test_delete_vlan_bridge_with_ip(self):
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with contextlib.nested(
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mock.patch.object(self.lbm, "device_exists"),
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mock.patch.object(ip_lib, "device_exists"),
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mock.patch.object(self.lbm, "get_interfaces_on_bridge"),
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mock.patch.object(self.lbm, "remove_interface"),
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mock.patch.object(self.lbm, "get_interface_details"),
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@ -553,7 +548,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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def test_delete_vlan_bridge_no_ip(self):
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with contextlib.nested(
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mock.patch.object(self.lbm, "device_exists"),
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mock.patch.object(ip_lib, "device_exists"),
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mock.patch.object(self.lbm, "get_interfaces_on_bridge"),
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mock.patch.object(self.lbm, "remove_interface"),
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mock.patch.object(self.lbm, "get_interface_details"),
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@ -576,7 +571,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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interface_mappings, self.root_helper)
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with contextlib.nested(
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mock.patch.object(lbm, "device_exists"),
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mock.patch.object(ip_lib, "device_exists"),
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mock.patch.object(lbm, "get_interfaces_on_bridge"),
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mock.patch.object(lbm, "remove_interface"),
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mock.patch.object(lbm, "delete_vxlan"),
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@ -608,7 +603,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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def test_remove_interface(self):
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with contextlib.nested(
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mock.patch.object(self.lbm, "device_exists"),
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mock.patch.object(ip_lib, "device_exists"),
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mock.patch.object(self.lbm, "is_device_on_bridge"),
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mock.patch.object(utils, "execute")
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) as (de_fn, isdev_fn, exec_fn):
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@ -629,7 +624,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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def test_delete_vlan(self):
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with contextlib.nested(
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mock.patch.object(self.lbm, "device_exists"),
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mock.patch.object(ip_lib, "device_exists"),
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mock.patch.object(utils, "execute")
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) as (de_fn, exec_fn):
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de_fn.return_value = False
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@ -708,7 +703,7 @@ class TestLinuxBridgeManager(base.BaseTestCase):
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cfg.CONF.set_override('l2_population', l2_population, 'VXLAN')
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with contextlib.nested(
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mock.patch.object(
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self.lbm, 'device_exists', return_value=False),
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ip_lib, 'device_exists', return_value=False),
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mock.patch.object(self.lbm, 'delete_vxlan', return_value=None),
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mock.patch.object(self.lbm, 'ensure_vxlan', return_value=None),
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mock.patch.object(
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