345 lines
15 KiB
Python
345 lines
15 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2010 OpenStack LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from xml.etree.ElementTree import fromstring as xml_to_tree
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from xml.dom.minidom import parseString as xml_to_dom
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from nova import context
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from nova import db
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from nova import flags
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from nova import test
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from nova import utils
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from nova.api.ec2 import cloud
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from nova.auth import manager
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from nova.virt import libvirt_conn
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FLAGS = flags.FLAGS
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flags.DECLARE('instances_path', 'nova.compute.manager')
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class LibvirtConnTestCase(test.TestCase):
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def setUp(self):
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super(LibvirtConnTestCase, self).setUp()
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self.manager = manager.AuthManager()
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self.user = self.manager.create_user('fake', 'fake', 'fake',
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admin=True)
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self.project = self.manager.create_project('fake', 'fake', 'fake')
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self.network = utils.import_object(FLAGS.network_manager)
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FLAGS.instances_path = ''
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test_ip = '10.11.12.13'
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test_instance = {'memory_kb': '1024000',
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'basepath': '/some/path',
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'bridge_name': 'br100',
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'mac_address': '02:12:34:46:56:67',
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'vcpus': 2,
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'project_id': 'fake',
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'bridge': 'br101',
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'instance_type': 'm1.small'}
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def test_xml_and_uri_no_ramdisk_no_kernel(self):
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instance_data = dict(self.test_instance)
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self.do_test_xml_and_uri(instance_data,
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expect_kernel=False, expect_ramdisk=False)
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def test_xml_and_uri_no_ramdisk(self):
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instance_data = dict(self.test_instance)
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instance_data['kernel_id'] = 'aki-deadbeef'
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self.do_test_xml_and_uri(instance_data,
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expect_kernel=True, expect_ramdisk=False)
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def test_xml_and_uri_no_kernel(self):
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instance_data = dict(self.test_instance)
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instance_data['ramdisk_id'] = 'ari-deadbeef'
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self.do_test_xml_and_uri(instance_data,
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expect_kernel=False, expect_ramdisk=False)
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def test_xml_and_uri(self):
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instance_data = dict(self.test_instance)
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instance_data['ramdisk_id'] = 'ari-deadbeef'
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instance_data['kernel_id'] = 'aki-deadbeef'
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self.do_test_xml_and_uri(instance_data,
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expect_kernel=True, expect_ramdisk=True)
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def test_xml_and_uri_rescue(self):
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instance_data = dict(self.test_instance)
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instance_data['ramdisk_id'] = 'ari-deadbeef'
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instance_data['kernel_id'] = 'aki-deadbeef'
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self.do_test_xml_and_uri(instance_data,
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expect_kernel=True, expect_ramdisk=True,
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rescue=True)
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def do_test_xml_and_uri(self, instance,
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expect_ramdisk, expect_kernel,
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rescue=False):
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user_context = context.RequestContext(project=self.project,
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user=self.user)
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instance_ref = db.instance_create(user_context, instance)
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network_ref = self.network.get_network(user_context)
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self.network.set_network_host(context.get_admin_context(),
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network_ref['id'])
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fixed_ip = {'address': self.test_ip,
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'network_id': network_ref['id']}
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ctxt = context.get_admin_context()
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fixed_ip_ref = db.fixed_ip_create(ctxt, fixed_ip)
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db.fixed_ip_update(ctxt, self.test_ip,
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{'allocated': True,
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'instance_id': instance_ref['id']})
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type_uri_map = {'qemu': ('qemu:///system',
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[(lambda t: t.find('.').get('type'), 'qemu'),
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(lambda t: t.find('./os/type').text, 'hvm'),
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(lambda t: t.find('./devices/emulator'), None)]),
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'kvm': ('qemu:///system',
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[(lambda t: t.find('.').get('type'), 'kvm'),
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(lambda t: t.find('./os/type').text, 'hvm'),
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(lambda t: t.find('./devices/emulator'), None)]),
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'uml': ('uml:///system',
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[(lambda t: t.find('.').get('type'), 'uml'),
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(lambda t: t.find('./os/type').text, 'uml')]),
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'xen': ('xen:///',
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[(lambda t: t.find('.').get('type'), 'xen'),
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(lambda t: t.find('./os/type').text, 'linux')]),
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}
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for hypervisor_type in ['qemu', 'kvm', 'xen']:
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check_list = type_uri_map[hypervisor_type][1]
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if rescue:
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check = (lambda t: t.find('./os/kernel').text.split('/')[1],
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'rescue-kernel')
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check_list.append(check)
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check = (lambda t: t.find('./os/initrd').text.split('/')[1],
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'rescue-ramdisk')
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check_list.append(check)
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else:
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if expect_kernel:
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check = (lambda t: t.find('./os/kernel').text.split(
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'/')[1], 'kernel')
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else:
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check = (lambda t: t.find('./os/kernel'), None)
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check_list.append(check)
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if expect_ramdisk:
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check = (lambda t: t.find('./os/initrd').text.split(
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'/')[1], 'ramdisk')
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else:
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check = (lambda t: t.find('./os/initrd'), None)
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check_list.append(check)
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common_checks = [
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(lambda t: t.find('.').tag, 'domain'),
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(lambda t: t.find(
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'./devices/interface/filterref/parameter').get('name'), 'IP'),
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(lambda t: t.find(
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'./devices/interface/filterref/parameter').get(
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'value'), '10.11.12.13'),
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(lambda t: t.findall(
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'./devices/interface/filterref/parameter')[1].get(
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'name'), 'DHCPSERVER'),
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(lambda t: t.findall(
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'./devices/interface/filterref/parameter')[1].get(
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'value'), '10.0.0.1'),
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(lambda t: t.find('./devices/serial/source').get(
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'path').split('/')[1], 'console.log'),
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(lambda t: t.find('./memory').text, '2097152')]
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if rescue:
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common_checks += [
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(lambda t: t.findall('./devices/disk/source')[0].get(
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'file').split('/')[1], 'rescue-disk'),
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(lambda t: t.findall('./devices/disk/source')[1].get(
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'file').split('/')[1], 'disk')]
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else:
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common_checks += [(lambda t: t.findall(
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'./devices/disk/source')[0].get('file').split('/')[1],
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'disk')]
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for (libvirt_type, (expected_uri, checks)) in type_uri_map.iteritems():
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FLAGS.libvirt_type = libvirt_type
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conn = libvirt_conn.LibvirtConnection(True)
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uri = conn.get_uri()
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self.assertEquals(uri, expected_uri)
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xml = conn.to_xml(instance_ref, rescue)
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tree = xml_to_tree(xml)
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for i, (check, expected_result) in enumerate(checks):
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self.assertEqual(check(tree),
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expected_result,
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'%s failed check %d' % (xml, i))
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for i, (check, expected_result) in enumerate(common_checks):
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self.assertEqual(check(tree),
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expected_result,
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'%s failed common check %d' % (xml, i))
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# This test is supposed to make sure we don't override a specifically
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# set uri
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#
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# Deliberately not just assigning this string to FLAGS.libvirt_uri and
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# checking against that later on. This way we make sure the
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# implementation doesn't fiddle around with the FLAGS.
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testuri = 'something completely different'
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FLAGS.libvirt_uri = testuri
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for (libvirt_type, (expected_uri, checks)) in type_uri_map.iteritems():
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FLAGS.libvirt_type = libvirt_type
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conn = libvirt_conn.LibvirtConnection(True)
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uri = conn.get_uri()
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self.assertEquals(uri, testuri)
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def tearDown(self):
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super(LibvirtConnTestCase, self).tearDown()
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self.manager.delete_project(self.project)
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self.manager.delete_user(self.user)
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class NWFilterTestCase(test.TestCase):
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def setUp(self):
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super(NWFilterTestCase, self).setUp()
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class Mock(object):
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pass
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self.manager = manager.AuthManager()
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self.user = self.manager.create_user('fake', 'fake', 'fake',
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admin=True)
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self.project = self.manager.create_project('fake', 'fake', 'fake')
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self.context = context.RequestContext(self.user, self.project)
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self.fake_libvirt_connection = Mock()
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self.fw = libvirt_conn.NWFilterFirewall(self.fake_libvirt_connection)
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def tearDown(self):
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self.manager.delete_project(self.project)
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self.manager.delete_user(self.user)
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def test_cidr_rule_nwfilter_xml(self):
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cloud_controller = cloud.CloudController()
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cloud_controller.create_security_group(self.context,
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'testgroup',
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'test group description')
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cloud_controller.authorize_security_group_ingress(self.context,
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'testgroup',
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from_port='80',
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to_port='81',
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ip_protocol='tcp',
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cidr_ip='0.0.0.0/0')
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security_group = db.security_group_get_by_name(self.context,
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'fake',
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'testgroup')
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xml = self.fw.security_group_to_nwfilter_xml(security_group.id)
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dom = xml_to_dom(xml)
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self.assertEqual(dom.firstChild.tagName, 'filter')
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rules = dom.getElementsByTagName('rule')
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self.assertEqual(len(rules), 1)
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# It's supposed to allow inbound traffic.
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self.assertEqual(rules[0].getAttribute('action'), 'accept')
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self.assertEqual(rules[0].getAttribute('direction'), 'in')
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# Must be lower priority than the base filter (which blocks everything)
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self.assertTrue(int(rules[0].getAttribute('priority')) < 1000)
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ip_conditions = rules[0].getElementsByTagName('tcp')
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self.assertEqual(len(ip_conditions), 1)
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self.assertEqual(ip_conditions[0].getAttribute('srcipaddr'), '0.0.0.0')
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self.assertEqual(ip_conditions[0].getAttribute('srcipmask'), '0.0.0.0')
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self.assertEqual(ip_conditions[0].getAttribute('dstportstart'), '80')
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self.assertEqual(ip_conditions[0].getAttribute('dstportend'), '81')
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self.teardown_security_group()
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def teardown_security_group(self):
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cloud_controller = cloud.CloudController()
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cloud_controller.delete_security_group(self.context, 'testgroup')
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def setup_and_return_security_group(self):
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cloud_controller = cloud.CloudController()
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cloud_controller.create_security_group(self.context,
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'testgroup',
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'test group description')
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cloud_controller.authorize_security_group_ingress(self.context,
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'testgroup',
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from_port='80',
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to_port='81',
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ip_protocol='tcp',
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cidr_ip='0.0.0.0/0')
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return db.security_group_get_by_name(self.context, 'fake', 'testgroup')
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def test_creates_base_rule_first(self):
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# These come pre-defined by libvirt
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self.defined_filters = ['no-mac-spoofing',
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'no-ip-spoofing',
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'no-arp-spoofing',
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'allow-dhcp-server']
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self.recursive_depends = {}
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for f in self.defined_filters:
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self.recursive_depends[f] = []
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def _filterDefineXMLMock(xml):
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dom = xml_to_dom(xml)
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name = dom.firstChild.getAttribute('name')
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self.recursive_depends[name] = []
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for f in dom.getElementsByTagName('filterref'):
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ref = f.getAttribute('filter')
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self.assertTrue(ref in self.defined_filters,
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('%s referenced filter that does ' +
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'not yet exist: %s') % (name, ref))
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dependencies = [ref] + self.recursive_depends[ref]
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self.recursive_depends[name] += dependencies
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self.defined_filters.append(name)
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return True
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self.fake_libvirt_connection.nwfilterDefineXML = _filterDefineXMLMock
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instance_ref = db.instance_create(self.context,
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{'user_id': 'fake',
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'project_id': 'fake'})
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inst_id = instance_ref['id']
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def _ensure_all_called():
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instance_filter = 'nova-instance-%s' % instance_ref['name']
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secgroup_filter = 'nova-secgroup-%s' % self.security_group['id']
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for required in [secgroup_filter, 'allow-dhcp-server',
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'no-arp-spoofing', 'no-ip-spoofing',
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'no-mac-spoofing']:
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self.assertTrue(required in
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self.recursive_depends[instance_filter],
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"Instance's filter does not include %s" %
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required)
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self.security_group = self.setup_and_return_security_group()
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db.instance_add_security_group(self.context, inst_id,
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self.security_group.id)
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instance = db.instance_get(self.context, inst_id)
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d = self.fw.setup_nwfilters_for_instance(instance)
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_ensure_all_called()
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self.teardown_security_group()
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return d
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