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# Copyright (c) 2017 Cable Television Laboratories, Inc. and others.
#
# 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
from datetime import datetime
import logging
import os
import time
import uuid
from functest.core import testcase
from functest.utils import functest_utils
from functest.utils.constants import CONST
from snaps.openstack import create_flavor
from snaps.openstack.create_flavor import FlavorSettings, OpenStackFlavor
from snaps.openstack.create_network import NetworkSettings, SubnetSettings
from snaps.openstack.tests import openstack_tests
from snaps.openstack.utils import deploy_utils
class VPingBase(testcase.TestCase):
"""
Base class for vPing tests that check connectivity between two VMs shared
internal network.
This class is responsible for creating the image, internal network.
"""
def __init__(self, **kwargs):
super(VPingBase, self).__init__(**kwargs)
# This line is here simply for pep8 as the 'os' package import appears
# to be required for mock and the unit tests will fail without it
os.environ
self.logger = logging.getLogger(self.__class__.__name__)
if 'os_creds' in kwargs:
self.os_creds = kwargs['os_creds']
else:
self.os_creds = openstack_tests.get_credentials(
os_env_file=CONST.__getattribute__('openstack_creds'))
self.creators = list()
self.image_creator = None
self.network_creator = None
self.vm1_creator = None
self.vm2_creator = None
# Shared metadata
self.guid = ''
if CONST.__getattribute__('vping_unique_names'):
self.guid = '-' + str(uuid.uuid4())
self.vm1_name = CONST.__getattribute__('vping_vm_name_1') + self.guid
self.vm2_name = CONST.__getattribute__('vping_vm_name_2') + self.guid
self.vm_boot_timeout = CONST.__getattribute__('vping_vm_boot_timeout')
self.vm_delete_timeout = CONST.__getattribute__(
'vping_vm_delete_timeout')
self.vm_ssh_connect_timeout = CONST.vping_vm_ssh_connect_timeout
self.ping_timeout = CONST.__getattribute__('vping_ping_timeout')
self.flavor_name = 'vping-flavor' + self.guid
# Move this configuration option up for all tests to leverage
if hasattr(CONST, 'snaps_images_cirros'):
self.cirros_image_config = CONST.__getattribute__(
'snaps_images_cirros')
else:
self.cirros_image_config = None
def run(self):
"""
Begins the test execution which should originate from the subclass
"""
self.logger.info('Begin virtual environment setup')
self.start_time = time.time()
self.logger.info("vPing Start Time:'%s'" % (
datetime.fromtimestamp(self.start_time).strftime(
'%Y-%m-%d %H:%M:%S')))
image_base_name = '{}-{}'.format(
CONST.__getattribute__('vping_image_name'),
str(self.guid))
os_image_settings = openstack_tests.cirros_image_settings(
image_base_name, image_metadata=self.cirros_image_config)
self.logger.info("Creating image with name: '%s'" % image_base_name)
self.image_creator = deploy_utils.create_image(
self.os_creds, os_image_settings)
self.creators.append(self.image_creator)
private_net_name = CONST.__getattribute__(
'vping_private_net_name') + self.guid
private_subnet_name = CONST.__getattribute__(
'vping_private_subnet_name') + self.guid
private_subnet_cidr = CONST.__getattribute__(
'vping_private_subnet_cidr')
self.logger.info(
"Creating network with name: '%s'" % private_net_name)
self.network_creator = deploy_utils.create_network(
self.os_creds,
NetworkSettings(name=private_net_name,
subnet_settings=[SubnetSettings(
name=private_subnet_name,
cidr=private_subnet_cidr)]))
self.creators.append(self.network_creator)
self.logger.info(
"Creating flavor with name: '%s'" % self.flavor_name)
scenario = functest_utils.get_scenario()
flavor_metadata = None
if 'ovs' in scenario or 'fdio' in scenario:
flavor_metadata = create_flavor.MEM_PAGE_SIZE_LARGE
flavor_creator = OpenStackFlavor(
self.os_creds,
FlavorSettings(name=self.flavor_name, ram=512, disk=1, vcpus=1,
metadata=flavor_metadata))
flavor_creator.create()
self.creators.append(flavor_creator)
def _execute(self):
"""
Method called by subclasses after environment has been setup
:return: the exit code
"""
self.logger.info('Begin test execution')
test_ip = self.vm1_creator.get_port_ip(
self.vm1_creator.instance_settings.port_settings[0].name)
if self.vm1_creator.vm_active(
block=True) and self.vm2_creator.vm_active(block=True):
result = self._do_vping(self.vm2_creator, test_ip)
else:
raise Exception('VMs never became active')
if result == testcase.TestCase.EX_RUN_ERROR:
return testcase.TestCase.EX_RUN_ERROR
self.stop_time = time.time()
self.result = 100
return testcase.TestCase.EX_OK
def _cleanup(self):
"""
Cleanup all OpenStack objects. Should be called on completion
:return:
"""
if CONST.__getattribute__('vping_cleanup_objects'):
for creator in reversed(self.creators):
try:
creator.clean()
except Exception as e:
self.logger.error('Unexpected error cleaning - %s', e)
def _do_vping(self, vm_creator, test_ip):
"""
Method to be implemented by subclasses
Begins the real test after the OpenStack environment has been setup
:param vm_creator: the SNAPS VM instance creator object
:param test_ip: the IP to which the VM needs to issue the ping
:return: T/F
"""
raise NotImplementedError('vping execution is not implemented')
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