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##############################################################################
# Copyright (c) 2017 ZTE Corporation and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import os
from os.path import isfile, join
import random
import sys
import time
from doctor_tests.alarm import Alarm
from doctor_tests.common.constants import Host
from doctor_tests.common.utils import match_rep_in_file
from doctor_tests import config
from doctor_tests.consumer import get_consumer
from doctor_tests.identity_auth import get_identity_auth
from doctor_tests.identity_auth import get_session
from doctor_tests.image import Image
from doctor_tests.instance import Instance
from doctor_tests.inspector import get_inspector
from doctor_tests.installer import get_installer
import doctor_tests.logger as doctor_log
from doctor_tests.network import Network
from doctor_tests.monitor import get_monitor
from doctor_tests.os_clients import nova_client
from doctor_tests.profiler_poc import main as profiler_main
from doctor_tests.scenario.common import calculate_notification_time
from doctor_tests.scenario.network_failure import NetworkFault
from doctor_tests.user import User
Logger = doctor_log.Logger('doctor')
LOG = Logger.getLogger()
LogFile = Logger.getLogFilename()
class DoctorTest(object):
def __init__(self, conf):
self.conf = conf
self.image = Image(self.conf, LOG)
self.user = User(self.conf, LOG)
self.network = Network(self.conf, LOG)
self.instance = Instance(self.conf, LOG)
self.alarm = Alarm(self.conf, LOG)
self.installer = get_installer(self.conf, LOG)
self.inspector = get_inspector(self.conf, LOG)
self.monitor = get_monitor(self.conf,
self.inspector.get_inspector_url(),
LOG)
self.consumer = get_consumer(self.conf, LOG)
self.fault = NetworkFault(self.conf, self.installer, LOG)
auth = get_identity_auth(project=self.conf.doctor_project)
self.nova = nova_client(self.conf.nova_version,
get_session(auth=auth))
self.down_host = None
def setup(self):
# prepare the cloud env
self.installer.setup()
# preparing VM image...
self.image.create()
# creating test user...
self.user.create()
def setup_fault_management(self):
# user settings...
self.user.update_quota()
# creating VM...
self.network.create()
self.instance.create()
self.instance.wait_for_vm_launch()
# creating alarm...
self.alarm.create()
# starting doctor sample components...
# tbd tojuvone: move inspector and consumer to common setup
# when they support updating VMs via instance.create and
# instance.delete alarm
self.inspector.start()
self.consumer.start()
self.down_host = self.get_host_info_for_random_vm()
self.monitor.start(self.down_host)
def test_fault_management(self):
try:
LOG.info('doctor fault management test starting.......')
# prepare test env
self.setup_fault_management()
# wait for aodh alarms are updated in caches for event evaluator,
# sleep time should be larger than event_alarm_cache_ttl
# (default 60)
# (tojuvone) Fraser currently needs 120
time.sleep(120)
# injecting host failure...
# NOTE (umar) add INTERFACE_NAME logic to host injection
self.fault.start(self.down_host)
time.sleep(10)
# verify the test results
# NOTE (umar) copy remote monitor.log file when monitor=collectd
self.check_host_status(self.down_host.name, 'down')
notification_time = calculate_notification_time(LogFile)
if notification_time < 1 and notification_time > 0:
LOG.info('doctor fault management test successfully, '
'notification_time=%s' % notification_time)
else:
LOG.error('doctor fault management test failed, '
'notification_time=%s' % notification_time)
sys.exit(1)
if self.conf.profiler_type:
LOG.info('doctor fault management test begin to run '
'profile.......')
self.collect_logs()
self.run_profiler()
except Exception as e:
LOG.error('doctor fault management test failed, '
'Exception=%s' % e)
sys.exit(1)
finally:
self.cleanup_fault_management()
def _amount_compute_nodes(self):
services = self.nova.services.list(binary='nova-compute')
return len(services)
def test_maintenance(self):
cnodes = self._amount_compute_nodes()
if cnodes < 3:
# need 2 compute for redundancy and one spare to migrate
LOG.info('not enough compute nodes, skipping doctor '
'maintenance test')
return
try:
LOG.info('doctor maintenance test starting.......')
# TODO (tojuvone) test setup and actual test
except Exception as e:
LOG.error('doctor maintenance test failed, Exception=%s' % e)
sys.exit(1)
# TODO (tojuvone) finally: test case specific cleanup
def run(self):
"""run doctor tests"""
try:
LOG.info('doctor test starting.......')
# prepare common test env
self.setup()
if self.conf.test_case == 'all':
self.test_fault_management()
self.test_maintenance()
else:
function = 'test_%s' % self.conf.test_case
if hasattr(self, function):
getattr(self, function)()
else:
raise Exception('Can not find function <%s> in'
'DoctorTest, see config manual'
% function)
except Exception as e:
LOG.error('doctor test failed, Exception=%s' % e)
sys.exit(1)
finally:
self.cleanup()
def get_host_info_for_random_vm(self):
num = random.randint(0, self.conf.instance_count - 1)
vm_name = "%s%d" % (self.conf.instance_basename, num)
servers = {getattr(server, 'name'): server
for server in self.nova.servers.list()}
server = servers.get(vm_name)
if not server:
raise Exception('Can not find instance: vm_name(%s)' % vm_name)
host_name = server.__dict__.get('OS-EXT-SRV-ATTR:hypervisor_hostname')
host_ip = self.installer.get_host_ip_from_hostname(host_name)
LOG.info('Get host info(name:%s, ip:%s) which vm(%s) launched at'
% (host_name, host_ip, vm_name))
return Host(host_name, host_ip)
def check_host_status(self, hostname, state):
service = self.nova.services.list(host=hostname,
binary='nova-compute')
host_state = service[0].__dict__.get('state')
assert host_state == state
def unset_forced_down_hosts(self):
if self.down_host:
self.nova.services.force_down(self.down_host.name,
'nova-compute', False)
time.sleep(2)
self.check_host_status(self.down_host.name, 'up')
def collect_logs(self):
self.fault.get_disable_network_log()
def run_profiler(self):
net_down_log_file = self.fault.get_disable_network_log()
reg = '(?<=doctor set link down at )\d+.\d+'
linkdown = float(match_rep_in_file(reg, net_down_log_file).group(0))
reg = '(.* doctor mark vm.* error at )(\d+.\d+)'
vmdown = float(match_rep_in_file(reg, LogFile).group(2))
reg = '(.* doctor mark host.* down at )(\d+.\d+)'
hostdown = float(match_rep_in_file(reg, LogFile).group(2))
reg = '(?<=doctor monitor detected at )\d+.\d+'
detected = float(match_rep_in_file(reg, LogFile).group(0))
reg = '(?<=doctor consumer notified at )\d+.\d+'
notified = float(match_rep_in_file(reg, LogFile).group(0))
# TODO(yujunz) check the actual delay to verify time sync status
# expected ~1s delay from $trigger to $linkdown
relative_start = linkdown
os.environ['DOCTOR_PROFILER_T00'] = (
str(int((linkdown - relative_start) * 1000)))
os.environ['DOCTOR_PROFILER_T01'] = (
str(int((detected - relative_start) * 1000)))
os.environ['DOCTOR_PROFILER_T03'] = (
str(int((vmdown - relative_start) * 1000)))
os.environ['DOCTOR_PROFILER_T04'] = (
str(int((hostdown - relative_start) * 1000)))
os.environ['DOCTOR_PROFILER_T09'] = (
str(int((notified - relative_start) * 1000)))
profiler_main(log=LOG)
def cleanup_fault_management(self):
self.unset_forced_down_hosts()
self.inspector.stop()
self.monitor.stop()
self.consumer.stop()
self.alarm.delete()
self.instance.delete()
self.network.delete()
self.fault.cleanup()
def cleanup(self):
self.installer.cleanup()
self.image.delete()
self.user.delete()
def main():
"""doctor main"""
test_dir = os.path.split(os.path.realpath(__file__))[0]
doctor_root_dir = os.path.dirname(test_dir)
config_file_dir = '{0}/{1}'.format(doctor_root_dir, 'etc/')
config_files = [join(config_file_dir, f)
for f in os.listdir(config_file_dir)
if isfile(join(config_file_dir, f))]
conf = config.prepare_conf(args=sys.argv[1:],
config_files=config_files)
doctor = DoctorTest(conf)
doctor.run()
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