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##############################################################################
# Copyright (c) 2018 Nokia 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 datetime
import json
import requests
import time
from doctor_tests.admin_tool import get_admin_tool
from doctor_tests.app_manager import get_app_manager
from doctor_tests.common.utils import get_doctor_test_root_dir
from doctor_tests.identity_auth import get_identity_auth
from doctor_tests.identity_auth import get_session
from doctor_tests.inspector import get_inspector
from doctor_tests.os_clients import keystone_client
from doctor_tests.os_clients import neutron_client
from doctor_tests.os_clients import nova_client
from doctor_tests.stack import Stack
class Maintenance(object):
def __init__(self, trasport_url, conf, log):
self.conf = conf
self.log = log
self.keystone = keystone_client(
self.conf.keystone_version, get_session())
self.nova = nova_client(conf.nova_version, get_session())
auth = get_identity_auth(project=self.conf.doctor_project)
self.neutron = neutron_client(get_session(auth=auth))
self.stack = Stack(self.conf, self.log)
if self.conf.admin_tool.type == 'sample':
self.admin_tool = get_admin_tool(trasport_url, self.conf, self.log)
self.endpoint = 'maintenance'
else:
self.endpoint = 'v1/maintenance'
self.app_manager = get_app_manager(self.stack, self.conf, self.log)
self.inspector = get_inspector(self.conf, self.log, trasport_url)
def get_external_network(self):
ext_net = None
networks = self.neutron.list_networks()['networks']
for network in networks:
if network['router:external']:
ext_net = network['name']
break
if ext_net is None:
raise Exception("external network not defined")
return ext_net
def setup_maintenance(self, user):
# each hypervisor needs to have same amount of vcpus and they
# need to be free before test
hvisors = self.nova.hypervisors.list(detailed=True)
prev_vcpus = 0
prev_hostname = ''
self.log.info('checking hypervisors.......')
for hvisor in hvisors:
vcpus = hvisor.__getattr__('vcpus')
vcpus_used = hvisor.__getattr__('vcpus_used')
hostname = hvisor.__getattr__('hypervisor_hostname')
if vcpus < 2:
raise Exception('not enough vcpus (%d) on %s' %
(vcpus, hostname))
if vcpus_used > 0:
if self.conf.test_case == 'all':
# VCPU might not yet be free after fault_management test
self.log.info('%d vcpus used on %s, retry...'
% (vcpus_used, hostname))
time.sleep(15)
hvisor = self.nova.hypervisors.get(hvisor.id)
vcpus_used = hvisor.__getattr__('vcpus_used')
if vcpus_used > 0:
raise Exception('%d vcpus used on %s'
% (vcpus_used, hostname))
if prev_vcpus != 0 and prev_vcpus != vcpus:
raise Exception('%d vcpus on %s does not match to'
'%d on %s'
% (vcpus, hostname,
prev_vcpus, prev_hostname))
prev_vcpus = vcpus
prev_hostname = hostname
# maintenance flavor made so that 2 instances take whole node
flavor_vcpus = int(vcpus / 2)
compute_nodes = len(hvisors)
amount_actstdby_instances = 2
amount_noredundancy_instances = 2 * compute_nodes - 2
self.log.info('testing %d computes with %d vcpus each'
% (compute_nodes, vcpus))
self.log.info('testing %d actstdby and %d noredundancy instances'
% (amount_actstdby_instances,
amount_noredundancy_instances))
max_instances = (amount_actstdby_instances +
amount_noredundancy_instances)
max_cores = compute_nodes * vcpus
user.update_quota(max_instances, max_cores)
test_dir = get_doctor_test_root_dir()
template_file = '{0}/{1}'.format(test_dir, 'maintenance_hot_tpl.yaml')
files, template = self.stack.get_hot_tpl(template_file)
ext_net = self.get_external_network()
parameters = {'ext_net': ext_net,
'flavor_vcpus': flavor_vcpus,
'maint_image': self.conf.image_name,
'nonha_intances': amount_noredundancy_instances,
'ha_intances': amount_actstdby_instances}
self.log.info('creating maintenance stack.......')
self.log.info('parameters: %s' % parameters)
self.stack.create('doctor_test_maintenance',
template,
parameters=parameters,
files=files)
if self.conf.admin_tool.type == 'sample':
self.admin_tool.start()
else:
# TBD Now we expect Fenix is running in self.conf.admin_tool.port
pass
self.app_manager.start()
self.inspector.start()
def start_maintenance(self):
self.log.info('start maintenance.......')
hvisors = self.nova.hypervisors.list(detailed=True)
maintenance_hosts = list()
for hvisor in hvisors:
hostname = hvisor.__getattr__('hypervisor_hostname')
maintenance_hosts.append(hostname)
url = ('http://%s:%s/%s' %
(self.conf.admin_tool.ip,
self.conf.admin_tool.port,
self.endpoint))
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json'}
retries = 12
while retries > 0:
# let's start maintenance 20sec from now, so projects will have
# time to ACK to it before that
maintenance_at = (datetime.datetime.utcnow() +
datetime.timedelta(seconds=30)
).strftime('%Y-%m-%d %H:%M:%S')
data = {'state': 'MAINTENANCE',
'maintenance_at': maintenance_at,
'metadata': {'openstack_version': 'Rocky'},
'workflow': 'default'}
if self.conf.admin_tool.type == 'sample':
data['hosts'] = maintenance_hosts
else:
data['hosts'] = []
try:
ret = requests.post(url, data=json.dumps(data),
headers=headers)
except:
if retries == 0:
raise Exception('admin tool did not respond in 120s')
else:
self.log.info('admin tool not ready, retry in 10s')
retries = retries - 1
time.sleep(10)
continue
break
if ret.status_code != 200:
raise Exception(ret.text)
return ret.json()['session_id']
def remove_maintenance_session(self, session_id):
self.log.info('remove maintenance session %s.......' % session_id)
url = ('http://%s:%s/%s/%s' %
(self.conf.admin_tool.ip,
self.conf.admin_tool.port,
self.endpoint,
session_id))
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json'}
ret = requests.delete(url, data=None, headers=headers)
if ret.status_code != 200:
raise Exception(ret.text)
def get_maintenance_state(self, session_id):
url = ('http://%s:%s/%s/%s' %
(self.conf.admin_tool.ip,
self.conf.admin_tool.port,
self.endpoint,
session_id))
headers = {
'Content-Type': 'application/json',
'Accept': 'application/json'}
ret = requests.get(url, data=None, headers=headers)
if ret.status_code != 200:
raise Exception(ret.text)
return ret.json()['state']
def wait_maintenance_complete(self, session_id):
retries = 90
state = None
time.sleep(300)
while (state not in ['MAINTENANCE_DONE', 'MAINTENANCE_FAILED'] and
retries > 0):
time.sleep(10)
state = self.get_maintenance_state(session_id)
retries = retries - 1
self.remove_maintenance_session(session_id)
self.log.info('maintenance %s ended with state %s' %
(session_id, state))
if state == 'MAINTENANCE_FAILED':
raise Exception('maintenance %s failed' % session_id)
elif retries == 0:
raise Exception('maintenance %s not completed within 20min' %
session_id)
def cleanup_maintenance(self):
if self.conf.admin_tool.type == 'sample':
self.admin_tool.stop()
self.app_manager.stop()
self.inspector.stop()
self.log.info('stack delete start.......')
self.stack.delete()
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