nova/nova/tests/api/openstack/compute/contrib/test_hosts.py

345 lines
13 KiB
Python

# Copyright (c) 2011 OpenStack, LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from lxml import etree
import webob.exc
from nova.api.openstack.compute.contrib import hosts as os_hosts
from nova.compute import power_state
from nova.compute import vm_states
from nova import context
from nova import db
from nova.openstack.common import log as logging
from nova import test
LOG = logging.getLogger(__name__)
HOST_LIST = {"hosts": [
{"host_name": "host_c1", "service": "compute", "zone": "nova"},
{"host_name": "host_c2", "service": "compute", "zone": "nonova"},
{"host_name": "host_v1", "service": "volume", "zone": "nova"},
{"host_name": "host_v2", "service": "volume", "zone": "nonova"}]
}
HOST_LIST_NOVA_ZONE = [
{"host_name": "host_c1", "service": "compute", "zone": "nova"},
{"host_name": "host_v1", "service": "volume", "zone": "nova"}]
SERVICES_LIST = [
{"host": "host_c1", "topic": "compute", "availability_zone": "nova"},
{"host": "host_c2", "topic": "compute", "availability_zone": "nonova"},
{"host": "host_v1", "topic": "volume", "availability_zone": "nova"},
{"host": "host_v2", "topic": "volume", "availability_zone": "nonova"}]
def stub_service_get_all(self, req):
return SERVICES_LIST
def stub_set_host_enabled(context, host, enabled):
# We'll simulate success and failure by assuming
# that 'host_c1' always succeeds, and 'host_c2'
# always fails
fail = (host == "host_c2")
status = "enabled" if (enabled != fail) else "disabled"
return status
def stub_set_host_maintenance(context, host, mode):
# We'll simulate success and failure by assuming
# that 'host_c1' always succeeds, and 'host_c2'
# always fails
fail = (host == "host_c2")
maintenance = "on_maintenance" if (mode != fail) else "off_maintenance"
return maintenance
def stub_host_power_action(context, host, action):
return action
def _create_instance(**kwargs):
"""Create a test instance"""
ctxt = context.get_admin_context()
return db.instance_create(ctxt, _create_instance_dict(**kwargs))
def _create_instance_dict(**kwargs):
"""Create a dictionary for a test instance"""
inst = {}
inst['image_ref'] = 'cedef40a-ed67-4d10-800e-17455edce175'
inst['reservation_id'] = 'r-fakeres'
inst['user_id'] = kwargs.get('user_id', 'admin')
inst['project_id'] = kwargs.get('project_id', 'fake')
inst['instance_type_id'] = '1'
if 'host' in kwargs:
inst['host'] = kwargs.get('host')
inst['vcpus'] = kwargs.get('vcpus', 1)
inst['memory_mb'] = kwargs.get('memory_mb', 20)
inst['root_gb'] = kwargs.get('root_gb', 30)
inst['ephemeral_gb'] = kwargs.get('ephemeral_gb', 30)
inst['vm_state'] = kwargs.get('vm_state', vm_states.ACTIVE)
inst['power_state'] = kwargs.get('power_state', power_state.RUNNING)
inst['task_state'] = kwargs.get('task_state', None)
inst['availability_zone'] = kwargs.get('availability_zone', None)
inst['ami_launch_index'] = 0
inst['launched_on'] = kwargs.get('launched_on', 'dummy')
return inst
class FakeRequest(object):
environ = {"nova.context": context.get_admin_context()}
GET = {}
class FakeRequestWithNovaZone(object):
environ = {"nova.context": context.get_admin_context()}
GET = {"zone": "nova"}
class HostTestCase(test.TestCase):
"""Test Case for hosts."""
def setUp(self):
super(HostTestCase, self).setUp()
self.controller = os_hosts.HostController()
self.req = FakeRequest()
self.stubs.Set(db, 'service_get_all',
stub_service_get_all)
self.stubs.Set(self.controller.api, 'set_host_enabled',
stub_set_host_enabled)
self.stubs.Set(self.controller.api, 'set_host_maintenance',
stub_set_host_maintenance)
self.stubs.Set(self.controller.api, 'host_power_action',
stub_host_power_action)
def _test_host_update(self, host, key, val, expected_value):
body = {key: val}
result = self.controller.update(self.req, host, body=body)
self.assertEqual(result[key], expected_value)
def test_list_hosts(self):
"""Verify that the compute hosts are returned."""
hosts = os_hosts._list_hosts(self.req)
self.assertEqual(hosts, HOST_LIST['hosts'])
compute_hosts = os_hosts._list_hosts(self.req, "compute")
expected = [host for host in HOST_LIST['hosts']
if host["service"] == "compute"]
self.assertEqual(compute_hosts, expected)
def test_list_hosts_with_zone(self):
req = FakeRequestWithNovaZone()
hosts = os_hosts._list_hosts(req)
self.assertEqual(hosts, HOST_LIST_NOVA_ZONE)
def test_disable_host(self):
self._test_host_update('host_c1', 'status', 'disable', 'disabled')
self._test_host_update('host_c2', 'status', 'disable', 'enabled')
def test_enable_host(self):
self._test_host_update('host_c1', 'status', 'enable', 'enabled')
self._test_host_update('host_c2', 'status', 'enable', 'disabled')
def test_enable_maintenance(self):
self._test_host_update('host_c1', 'maintenance_mode',
'enable', 'on_maintenance')
def test_disable_maintenance(self):
self._test_host_update('host_c1', 'maintenance_mode',
'disable', 'off_maintenance')
def test_host_startup(self):
result = self.controller.startup(self.req, "host_c1")
self.assertEqual(result["power_action"], "startup")
def test_host_shutdown(self):
result = self.controller.shutdown(self.req, "host_c1")
self.assertEqual(result["power_action"], "shutdown")
def test_host_reboot(self):
result = self.controller.reboot(self.req, "host_c1")
self.assertEqual(result["power_action"], "reboot")
def test_bad_status_value(self):
bad_body = {"status": "bad"}
self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
self.req, "host_c1", body=bad_body)
bad_body2 = {"status": "disablabc"}
self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
self.req, "host_c1", body=bad_body2)
def test_bad_update_key(self):
bad_body = {"crazy": "bad"}
self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
self.req, "host_c1", body=bad_body)
def test_bad_update_key_and_correct_udpate_key(self):
bad_body = {"status": "disable", "crazy": "bad"}
self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,
self.req, "host_c1", body=bad_body)
def test_good_udpate_keys(self):
body = {"status": "disable", "maintenance_mode": "enable"}
result = self.controller.update(self.req, 'host_c1', body=body)
self.assertEqual(result["host"], "host_c1")
self.assertEqual(result["status"], "disabled")
self.assertEqual(result["maintenance_mode"], "on_maintenance")
def test_bad_host(self):
self.assertRaises(webob.exc.HTTPNotFound, self.controller.update,
self.req, "bogus_host_name", body={"status": "disable"})
def test_show_forbidden(self):
self.req.environ["nova.context"].is_admin = False
dest = 'dummydest'
self.assertRaises(webob.exc.HTTPForbidden,
self.controller.show,
self.req, dest)
self.req.environ["nova.context"].is_admin = True
def test_show_host_not_exist(self):
"""A host given as an argument does not exists."""
self.req.environ["nova.context"].is_admin = True
dest = 'dummydest'
self.assertRaises(webob.exc.HTTPNotFound,
self.controller.show,
self.req, dest)
def _create_compute_service(self):
"""Create compute-manager(ComputeNode and Service record)."""
ctxt = context.get_admin_context()
dic = {'host': 'dummy', 'binary': 'nova-compute', 'topic': 'compute',
'report_count': 0, 'availability_zone': 'dummyzone'}
s_ref = db.service_create(ctxt, dic)
dic = {'service_id': s_ref['id'],
'vcpus': 16, 'memory_mb': 32, 'local_gb': 100,
'vcpus_used': 16, 'memory_mb_used': 32, 'local_gb_used': 10,
'hypervisor_type': 'qemu', 'hypervisor_version': 12003,
'cpu_info': '', 'stats': {}}
db.compute_node_create(ctxt, dic)
return db.service_get(ctxt, s_ref['id'])
def test_show_no_project(self):
"""No instance are running on the given host."""
ctxt = context.get_admin_context()
s_ref = self._create_compute_service()
result = self.controller.show(self.req, s_ref['host'])
proj = ['(total)', '(used_now)', '(used_max)']
column = ['host', 'project', 'cpu', 'memory_mb', 'disk_gb']
self.assertEqual(len(result['host']), 3)
for resource in result['host']:
self.assertTrue(resource['resource']['project'] in proj)
self.assertEqual(len(resource['resource']), 5)
self.assertTrue(set(resource['resource'].keys()) == set(column))
db.service_destroy(ctxt, s_ref['id'])
def test_show_works_correctly(self):
"""show() works correctly as expected."""
ctxt = context.get_admin_context()
s_ref = self._create_compute_service()
i_ref1 = _create_instance(project_id='p-01', host=s_ref['host'])
i_ref2 = _create_instance(project_id='p-02', vcpus=3,
host=s_ref['host'])
result = self.controller.show(self.req, s_ref['host'])
proj = ['(total)', '(used_now)', '(used_max)', 'p-01', 'p-02']
column = ['host', 'project', 'cpu', 'memory_mb', 'disk_gb']
self.assertEqual(len(result['host']), 5)
for resource in result['host']:
self.assertTrue(resource['resource']['project'] in proj)
self.assertEqual(len(resource['resource']), 5)
self.assertTrue(set(resource['resource'].keys()) == set(column))
db.service_destroy(ctxt, s_ref['id'])
db.instance_destroy(ctxt, i_ref1['uuid'])
db.instance_destroy(ctxt, i_ref2['uuid'])
class HostSerializerTest(test.TestCase):
def setUp(self):
super(HostSerializerTest, self).setUp()
self.deserializer = os_hosts.HostDeserializer()
def test_index_serializer(self):
serializer = os_hosts.HostIndexTemplate()
text = serializer.serialize(HOST_LIST)
tree = etree.fromstring(text)
self.assertEqual('hosts', tree.tag)
self.assertEqual(len(HOST_LIST['hosts']), len(tree))
for i in range(len(HOST_LIST)):
self.assertEqual('host', tree[i].tag)
self.assertEqual(HOST_LIST['hosts'][i]['host_name'],
tree[i].get('host_name'))
self.assertEqual(HOST_LIST['hosts'][i]['service'],
tree[i].get('service'))
def test_update_serializer_with_status(self):
exemplar = dict(host='host_c1', status='enabled')
serializer = os_hosts.HostUpdateTemplate()
text = serializer.serialize(exemplar)
tree = etree.fromstring(text)
self.assertEqual('host', tree.tag)
for key, value in exemplar.items():
self.assertEqual(value, tree.get(key))
def test_update_serializer_with_maintainance_mode(self):
exemplar = dict(host='host_c1', maintenance_mode='enabled')
serializer = os_hosts.HostUpdateTemplate()
text = serializer.serialize(exemplar)
tree = etree.fromstring(text)
self.assertEqual('host', tree.tag)
for key, value in exemplar.items():
self.assertEqual(value, tree.get(key))
def test_update_serializer_with_maintainance_mode_and_status(self):
exemplar = dict(host='host_c1',
maintenance_mode='enabled',
status='enabled')
serializer = os_hosts.HostUpdateTemplate()
text = serializer.serialize(exemplar)
tree = etree.fromstring(text)
self.assertEqual('host', tree.tag)
for key, value in exemplar.items():
self.assertEqual(value, tree.get(key))
def test_action_serializer(self):
exemplar = dict(host='host_c1', power_action='reboot')
serializer = os_hosts.HostActionTemplate()
text = serializer.serialize(exemplar)
tree = etree.fromstring(text)
self.assertEqual('host', tree.tag)
for key, value in exemplar.items():
self.assertEqual(value, tree.get(key))
def test_update_deserializer(self):
exemplar = dict(status='enabled', foo='bar')
intext = ("<?xml version='1.0' encoding='UTF-8'?>\n"
'<updates><status>enabled</status><foo>bar</foo></updates>')
result = self.deserializer.deserialize(intext)
self.assertEqual(dict(body=exemplar), result)