def testWithNoBackend(self):
""" A backend service has no backend
Expectation: the backend service itself will be migrated
"""
### create test resources
backend_service_name = 'end-to-end-test-backend-service'
backend_service_selfLink = \
self.test_resource_creator.create_global_backend_service(
'sample_internal_self_managed_backend_service.json',
backend_service_name, [])['targetLink']
original_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
backend_service_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# check backend service config
# an internal backend service doesn't have a network config
new_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_backend_service_configs, new_backend_service_configs))
def testWithNoBackends(self):
""" A backend service has no backend
Expectation: the backend service itself will be migrated
"""
### create test resources
backend_service_name = 'end-to-end-test-backend-service'
operation = self.test_resource_creator.create_regional_backend_service(
'sample_internal_backend_service.json', backend_service_name, [])
original_backend_service_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_name)
backend_service_selfLink = operation['targetLink']
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
backend_service_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_backend_service_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_name)
# check backend service config
self.assertTrue(
check_selfLink_equal(new_backend_service_configs['network'],
self.test_resource_creator.network_selfLink))
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_backend_service_configs, new_backend_service_configs))
print('Pass the current test')
def get_backends_selfLinks(self) -> list:
""" Get all backends of this forwarding rule. The backends list can
contain backend service, or a target pool, or a target instance
Returns: a list of GCE resource selfLinks
"""
backends_selfLinks = []
if self.forwarding_rule_configs != None and 'target' in self.forwarding_rule_configs:
target_selfLink = self.forwarding_rule_configs['target']
print(target_selfLink)
self_link_executor = SelfLinkExecutor(self.compute,
target_selfLink,
self.network,
self.subnetwork)
# it can be a target instance, target pool or a backend service
if self_link_executor.is_a_supported_resource():
backends_selfLinks.append(target_selfLink)
# it is a target proxy
else:
target_proxy_type = self.get_target_proxy_type()
target_proxy_name = self.get_target_proxy_name()
target_proxy_configs = self.get_target_proxy_configs(
target_proxy_type, target_proxy_name,
self_link_executor.region)
backends_selfLinks.extend(
self.
get_backend_service_selfLinks_from_target_proxy_configs(
target_proxy_configs))
if 'backendService' in self.forwarding_rule_configs:
backends_selfLinks.append(
self.forwarding_rule_configs['backendService'])
return list(set(backends_selfLinks))
def testWithoutAutoscalerAttached(self):
### create test resources
group_name = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name, 'sample_multi_zone_managed_instance_group.json')
instance_group_selfLink = operation['targetLink']
original_instance_template_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
instance_group_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_instance_template_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name)
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_configs,
new_instance_template_configs))
# network changed
self.assertTrue(
check_instance_template_network(
new_instance_template_configs,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
def migrate_backends(self):
""" Migrate the backends of the backend service one by one
without deleting or recreating the backend service
Args:
backend_service_configs: the configs of the backend service
"""
if 'backends' not in self.backend_service.backend_service_configs:
return None
backends = self.backend_service.backend_service_configs['backends']
for i in range(len(backends)):
backend = backends[i]
migration_helper = SelfLinkExecutor(
self.compute, backend['group'], self.network, self.subnetwork,
self.preserve_instance_external_ip)
backend_migration_handler = migration_helper.build_instance_group_migration_handler(
)
# The backend type is not an instance group, then just ignore
if backend_migration_handler == None:
continue
self.backend_migration_handlers.append(backend_migration_handler)
print('Detaching: %s' % (backend['group']))
self.backend_service.detach_a_backend(backend['group'])
print('Migrating: %s' % (backend['group']))
backend_migration_handler.network_migration()
print('Reattaching: %s' % (backend['group']))
self.backend_service.reattach_all_backends()
# wait for the first backend becoming healthy,
# then continue migrate other backends
if i == 0 and len(backends) > 1:
self.backend_service.wait_for_backend_become_healthy(
backend['group'])
def testWithNoInstanceInTheGroup(self):
### create test resources
unmanaged_instance_group_name = 'end-to-end-test-unmanaged-instance-group-1'
self.test_resource_creator.create_unmanaged_instance_group(
unmanaged_instance_group_name, [])
original_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute, original_config['selfLink'],
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name, False)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_config, new_config))
# network changed
self.assertTrue(
check_selfLink_equal(new_config['network'],
self.test_resource_creator.network_selfLink))
print('Pass the current test')
def testAttachingAnInternalForwardingRule(self):
""" A targetInstance is in use by the forwarding rule
Expectation: both the targetInstance and the forwarding rule will be migrated
"""
### create test resources
forwarding_rule_name = 'end-to-end-test-forwarding-rule'
target_instance_name = 'end-to-end-test-instance'
operation = self.test_resource_creator.create_instance_using_template(
target_instance_name,
self.test_resource_creator.legacy_instance_template_selfLink)
instance_selfLink = operation['targetLink']
target_instance_selfLink = \
self.test_resource_creator.create_a_target_instance(
target_instance_name, instance_selfLink)['targetLink']
original_instance_config = self.google_api_interface.get_instance_configs(
target_instance_name)
forwarding_rule_selfLink = \
self.test_resource_creator.create_regional_forwarding_rule_with_target(
'sample_tcp_regional_forwarding_rule_internal.json',
forwarding_rule_name,
target_instance_selfLink)['targetLink']
original_forwarding_rule_config = self.google_api_interface.get_regional_forwarding_rule_config(
forwarding_rule_name)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
target_instance_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_forwarding_rule_config = self.google_api_interface.get_regional_forwarding_rule_config(
forwarding_rule_name)
self.assertTrue(
resource_config_is_unchanged_including_network(
original_forwarding_rule_config, new_forwarding_rule_config))
# check instance network
new_instance_config = self.google_api_interface.get_instance_configs(
target_instance_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
new_instance_config, original_instance_config))
# network changed
self.assertTrue(
check_instance_network(
new_instance_config,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
def testWithInstancesFromAnUnmanagedInstanceGroup(self):
""" The target pool is served by an instance which is a member of an unmanaged instance group
Expectation: the migration will not start.
"""
### create resources
instance_name_1 = 'end-to-end-test-instance-1'
operation = self.test_resource_creator.create_instance_using_template(
instance_name_1,
self.test_resource_creator.legacy_instance_template_selfLink)
instance_selfLink_1 = operation['targetLink']
instance_name_2 = 'end-to-end-test-instance-2'
operation = self.test_resource_creator.create_instance_using_template(
instance_name_2,
self.test_resource_creator.legacy_instance_template_selfLink)
instance_selfLink_2 = operation['targetLink']
unmanaged_instance_group_name = 'end-to-end-test-unmanaged-instance-group-1'
original_instances_in_group = [instance_name_1, instance_name_2]
self.test_resource_creator.create_unmanaged_instance_group(
unmanaged_instance_group_name, original_instances_in_group)
original_group_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
target_pool_name = 'end-to-end-test-target-pool'
operation = self.test_resource_creator.create_target_pool_with_health_check(
'sample_target_pool_with_no_instance.json',
target_pool_name, [], [instance_selfLink_1, instance_selfLink_2],
health_check_selfLink=None)
target_pool_selfLink = operation['targetLink']
original_target_pool_config = self.google_api_interface.get_target_pool_config(
target_pool_name)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
target_pool_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
# the migration will not start, and raise an error
with self.assertRaises(AmbiguousTargetResource):
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# unmanaged instance group doesn't change
new_group_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
self.assertEqual(original_group_config, new_group_config)
# target pool is unchanged
new_target_pool_config = self.google_api_interface.get_target_pool_config(
target_pool_name)
self.assertEqual(original_target_pool_config, new_target_pool_config)
print('Pass the current test')
def testAsBackendOfTargetPool(self):
""" The unmanaged instance group serves a target pool, which means the
instances in this instance group serve the target pool.
Expectation: The migration can still succeed.
But the instances might be detached from the target pool after the migration.
"""
### create test resources
instance_name_1 = 'end-to-end-test-instance-1'
operation = self.test_resource_creator.create_instance_using_template(
instance_name_1,
self.test_resource_creator.legacy_instance_template_selfLink)
instance_selfLink_1 = operation['targetLink']
original_instance_config = self.google_api_interface.get_instance_configs(
instance_name_1)
unmanaged_instance_group_name = 'end-to-end-test-unmanaged-instance-group-1'
original_instances_in_group = [instance_name_1]
unmanaged_instance_group_selfLink = \
self.test_resource_creator.create_unmanaged_instance_group(
unmanaged_instance_group_name,
original_instances_in_group)['targetLink']
original_instance_group_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
target_pool_name = 'end-to-end-test-target-pool'
self.test_resource_creator.create_target_pool_with_health_check(
'sample_target_pool_with_no_instance.json',
target_pool_name, [], [instance_selfLink_1],
health_check_selfLink=None)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
unmanaged_instance_group_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# the migration is successful
new_instance_config = self.google_api_interface.get_instance_configs(
instance_name_1)
new_instance_group_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_instance_config, new_instance_config))
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_instance_group_config, new_instance_group_config))
# network changed
self.assertTrue(
check_instance_network(
new_instance_config,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
def testOnlyInstancesAsBackend(self):
""" The target pool has single instances as its backends, no instance groups
"""
### create test resources
instance_name_1 = 'end-to-end-test-instance-1'
operation = self.test_resource_creator.create_instance_using_template(
instance_name_1,
self.test_resource_creator.legacy_instance_template_selfLink)
instance_selfLink_1 = operation['targetLink']
instance_name_2 = 'end-to-end-test-instance-2'
operation = self.test_resource_creator.create_instance_using_template(
instance_name_2,
self.test_resource_creator.legacy_instance_template_selfLink)
instance_selfLink_2 = operation['targetLink']
target_pool_name = 'end-to-end-test-target-pool'
operation = self.test_resource_creator.create_target_pool_with_health_check(
'sample_target_pool_with_no_instance.json',
target_pool_name, [], [instance_selfLink_1, instance_selfLink_2],
health_check_selfLink=None)
target_pool_selfLink = operation['targetLink']
original_target_pool_instance_list = \
self.google_api_interface.get_target_pool_config(target_pool_name)[
'instances']
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
target_pool_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_target_pool_instance_list = \
self.google_api_interface.get_target_pool_config(target_pool_name)[
'instances']
# target pool's instances unchanged
self.assertTrue(
compare_two_list(new_target_pool_instance_list,
original_target_pool_instance_list))
# instances' network changed
new_instance_1_config = self.google_api_interface.get_instance_configs(
instance_name_1)
self.assertTrue(
check_instance_network(
new_instance_1_config,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
new_instance_2_config = self.google_api_interface.get_instance_configs(
instance_name_2)
self.assertTrue(
check_instance_network(
new_instance_2_config,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
def testWithBackends(self):
""" A backend service has backends
Expectation: all the backends will be migrated
"""
### create test resources
backend_service_name = 'end-to-end-test-backend-service'
group_name_1 = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_1_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
original_backend_selfLinks = [instance_group_1_selfLink]
backend_service_selfLink = \
self.test_resource_creator.create_global_backend_service(
'sample_internal_self_managed_backend_service.json',
backend_service_name, original_backend_selfLinks)['targetLink']
original_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
backend_service_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# check backend service config
new_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_backend_service_configs, new_backend_service_configs))
# check its backends
new_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_1_configs,
new_instance_template_1_configs))
# network changed
self.assertTrue(
check_instance_template_network(
new_instance_template_1_configs,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
def network_migration(self):
""" Network migration for an internal forwarding rule.
The forwarding rule will be deleted first.
Then, the tool will migrate the backend service.
Finally, recreate the forwarding rule in the target subnet.
Returns:
"""
if self.forwarding_rule.compare_original_network_and_target_network():
print('The backend service %s is already using target subnet.' %
(self.forwarding_rule_name))
return
backends_selfLinks = self.forwarding_rule.backends_selfLinks
for backends_selfLink in backends_selfLinks:
selfLink_executor = SelfLinkExecutor(
self.compute, backends_selfLink, self.network_name,
self.subnetwork_name, self.preserve_instance_external_ip)
# the backends can be a target instance or an internal backend service
try:
backends_migration_handler = selfLink_executor.build_migration_handler(
)
except UnsupportedBackendService:
warnings.warn(
'The load balancing scheme of (%s) is not supported. '
'Continue migrating other backends.' % (backends_selfLink))
continue
if backends_migration_handler != None:
self.backends_migration_handlers.append(
backends_migration_handler)
if isinstance(backends_migration_handler,
BackendServiceMigration):
backend_service = backends_migration_handler.backend_service
if backend_service != None and backend_service.count_forwarding_rules(
) > 1:
print(
'The backend service is associated with two or more forwarding rules, \n'
'so it can not be migrated. \n'
'Terminating. ')
return
self.migration_status = MigrationStatus(1)
print('Deleting: %s.' % (self.forwarding_rule_name))
self.forwarding_rule.delete_forwarding_rule()
self.migration_status = MigrationStatus(2)
print('Migrating the backends of %s.' % (self.forwarding_rule_name))
for backends_migration_handler in self.backends_migration_handlers:
backends_migration_handler.network_migration()
self.migration_status = MigrationStatus(3)
print('Recreating the forwarding rule (%s) in the target subnet.' %
(self.forwarding_rule_name))
self.forwarding_rule.insert_forwarding_rule(
self.forwarding_rule.new_forwarding_rule_configs)
self.migration_status = MigrationStatus(4)
def testSharingBackendWithAnotherBackendService(self):
""" The internal backend service A shares the same backend with another backend service B
Expectation: rollback
"""
### create test resources
backend_service_1_name = 'end-to-end-test-backend-service-1'
backend_service_2_name = 'end-to-end-test-backend-service-2'
group_name_1 = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_1_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_group_config = self.google_api_interface.get_multi_zone_managed_instance_group_configs(
group_name_1)
backend_service_1_selfLink = \
self.test_resource_creator.create_regional_backend_service(
'sample_internal_backend_service.json',
backend_service_1_name, [instance_group_1_selfLink])[
'targetLink']
original_backend_service_1_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_1_name)
self.test_resource_creator.create_regional_backend_service(
'sample_internal_backend_service.json', backend_service_2_name,
[instance_group_1_selfLink])
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
backend_service_1_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
with self.assertRaises(MigrationFailed):
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_backend_service_1_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_1_name)
# check backend service config
self.assertTrue(
resource_config_is_unchanged_including_network(
original_backend_service_1_configs,
new_backend_service_1_configs))
# check its backends
new_instance_group_config = self.google_api_interface.get_multi_zone_managed_instance_group_configs(
group_name_1)
self.assertTrue(
instance_template_config_is_unchanged(
original_instance_group_config, new_instance_group_config))
print('Pass the current test')
def testAsBackendOfBackendService(self):
""" The instance group is serving a backend service
Expectation: The migration will fail and rollback to the legacy network.
"""
### create test resources
instance_name_1 = 'end-to-end-test-instance-1'
operation = self.test_resource_creator.create_instance_using_template(
instance_name_1,
self.test_resource_creator.legacy_instance_template_selfLink)
original_instance_config = self.google_api_interface.get_instance_configs(
instance_name_1)
unmanaged_instance_group_name = 'end-to-end-test-unmanaged-instance-group-1'
original_instances_in_group = [instance_name_1]
unmanaged_instance_group_selfLink = \
self.test_resource_creator.create_unmanaged_instance_group(
unmanaged_instance_group_name,
original_instances_in_group)['targetLink']
original_instance_group_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
backend_service_name = 'end-to-end-test-backend-service'
original_backend_selfLinks = [unmanaged_instance_group_selfLink]
self.test_resource_creator.create_regional_backend_service(
'sample_internal_backend_service.json', backend_service_name,
original_backend_selfLinks)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
unmanaged_instance_group_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
with self.assertRaises(MigrationFailed):
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# the migration is failed and the resources are rolled back
new_instance_config = self.google_api_interface.get_instance_configs(
instance_name_1)
new_instance_group_config = self.google_api_interface.get_unmanaged_instance_group_configs(
unmanaged_instance_group_name)
self.assertTrue(
resource_config_is_unchanged_including_network(
original_instance_config, new_instance_config))
self.assertTrue(
resource_config_is_unchanged_including_network(
original_instance_group_config, new_instance_group_config))
print('Pass the current test')
def get_backend_service_selfLinks_from_target_proxy_configs(
self, target_proxy_configs) -> list:
""" Get all the backend services which are serving the forwarding rule
Returns: a list pf backend service selfLink
"""
if 'service' in target_proxy_configs:
return [target_proxy_configs['service']]
elif 'urlMap' in target_proxy_configs:
backend_services_selfLinks = set()
url_selfLink = target_proxy_configs['urlMap']
self_link_executor = SelfLinkExecutor(self.compute, url_selfLink,
self.network,
self.subnetwork)
urlMap_name = target_proxy_configs['urlMap'].split('/')[-1]
if self_link_executor.region == None:
urlMap_configs = self.compute.urlMaps().get(
project=self.project, urlMap=urlMap_name).execute()
else:
urlMap_configs = self.compute.regionUrlMaps().get(
project=self.project,
urlMap=urlMap_name,
region=self_link_executor.region).execute()
find_all_matching_strings_from_a_dict(urlMap_configs,
"compute/v1/projects/",
backend_services_selfLinks)
return list(backend_services_selfLinks)
return []
def create_instance_migration_handler(self, instance_selfLink=None):
""" Create an instance migration handler
Args:
instance_selfLink: url selfLink of the instance
Returns:
"""
if instance_selfLink == None:
instance_selfLink = self.get_instance_selfLink()
selfLink_executor = SelfLinkExecutor(
self.compute, instance_selfLink, self.network, self.subnetwork,
self.preserve_instance_external_ip)
try:
return selfLink_executor.build_instance_migration_handler()
except:
return None
def network_migration(self):
""" Network migration for a external forwarding rule.
The tool will migrate its backend services one by one.
The forwarding rule itself will not be deleted or recreated.
"""
if self.forwarding_rule.compare_original_network_and_target_network():
print('The backend service %s is already using target subnet.' % (
self.forwarding_rule_name))
return
backends_selfLinks = self.forwarding_rule.backends_selfLinks
if backends_selfLinks == []:
print(
'No backend service needs to be migrated. Terminating the migration.')
return
for backends_selfLink in backends_selfLinks:
selfLink_executor = SelfLinkExecutor(self.compute,
backends_selfLink,
self.network_name,
self.subnetwork_name,
self.preserve_instance_external_ip)
try:
backends_migration_handler = selfLink_executor.build_migration_handler()
except UnsupportedBackendService:
warnings.warn(
'The load balancing scheme of (%s) is not supported. '
'Continue migrating other backends.' % (backends_selfLink))
continue # Save handlers for rollback purpose
if backends_migration_handler != None:
if isinstance(backends_migration_handler,
BackendServiceMigration):
backend_service = backends_migration_handler.backend_service
if backend_service != None and backend_service.count_forwarding_rules() > 1:
print(
'The backend service is associated with two or more forwarding rules, \n'
'so it can not be migrated. \n'
'Terminating. ')
# this backend service will be ignored and will continue migrate other backend services
continue
self.backends_migration_handlers.append(
backends_migration_handler)
backends_migration_handler.network_migration()
def network_migration(self):
""" Migrate the network of an unmanaged instance group.
The instances belonging to this instance group will
be migrated one by one.
"""
self.migration_status = 0
if self.instance_group.compare_original_network_and_target_network():
print('The instance group %s is already using the target subnet.' %
(self.instance_group_name))
return
self.migration_status = 1
for instance_selfLink in self.instance_group.instance_selfLinks:
selfLink_executor = SelfLinkExecutor(self.compute,
instance_selfLink,
self.network_name,
self.subnetwork_name,
self.preserve_external_ip)
instance_migration_handler = selfLink_executor.build_migration_handler(
)
if instance_migration_handler != None:
self.instance_migration_handlers.append(
instance_migration_handler)
# print('Detaching the instance %s.' %(instance_selfLink))
# self.instance_group.remove_an_instance(instance_selfLink)
instance_migration_handler.network_migration(force=True)
self.migration_status = 2
print('Deleting: %s.' % (self.instance_group_name))
self.instance_group.delete_instance_group()
self.migration_status = 3
print(
'Recreating the instance group using the same configuration in the new network.'
)
self.instance_group.create_instance_group(
self.instance_group.new_instance_group_configs)
self.migration_status = 4
print('Adding the instances back to the instance group: %s.' %
(self.instance_group_name))
self.instance_group.add_all_instances()
self.migration_status = 5
def build_instance_migration_handlers(self):
""" Use instance's selfLinks to create a list of InstanceMigrationHandler
Returns:
"""
for selfLink in self.target_pool.attached_single_instances_selfLinks:
executor = SelfLinkExecutor(self.compute, selfLink, self.network,
self.subnetwork,
self.preserve_instance_external_ip)
try:
instance_migration_handler = executor.build_instance_migration_handler(
)
self.instance_migration_handlers.append(
instance_migration_handler)
except HttpError as e:
if 'not found' in e._get_reason():
continue
else:
raise e
def migrate_backends(self):
""" Migrate the backends of the backend service one by one
Args:
backend_service_configs: the configs of the backend service
"""
if 'backends' not in self.backend_service.backend_service_configs:
return None
backends = self.backend_service.backend_service_configs['backends']
for backend in backends:
selfLink_executor = SelfLinkExecutor(
self.compute, backend['group'], self.network, self.subnetwork,
self.preserve_instance_external_ip)
backend_migration_handler = selfLink_executor.build_migration_handler(
)
if backend_migration_handler != None:
backend_migration_handler.network_migration()
self.backend_migration_handlers.append(
backend_migration_handler)
def testAsBackendOfTargetPool(self):
""" The managed instance group serves a target pool.
Expectation: The migration will not start.
"""
### create test resources
group_name = 'end-to-end-test-managed-instance-group-1'
instance_group_selfLink = \
self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name,
'sample_multi_zone_managed_instance_group.json')[
'targetLink']
original_instance_template_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name)
target_pool_name = 'end-to-end-test-target-pool'
self.test_resource_creator.create_target_pool_with_health_check(
'sample_target_pool_with_no_instance.json',
target_pool_name, [group_name], [],
health_check_selfLink=None)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
instance_group_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
with self.assertRaises(MigrationFailed):
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# the migration didn't start
new_instance_template_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name)
self.assertTrue(
resource_config_is_unchanged_including_network(
new_instance_template_configs, new_instance_template_configs))
print('Pass the current test')
def testAsBackendOfBackendService(self):
""" The managed instance group serves a backend service.
Expectation: The migration will fail and rollback.
"""
### create test resources
group_name = 'end-to-end-test-managed-instance-group-1'
instance_group_selfLink = \
self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name,
'sample_multi_zone_managed_instance_group.json')[
'targetLink'].replace('/instanceGroupManagers/',
'/instanceGroups/')
original_instance_group_config = self.google_api_interface.get_multi_zone_managed_instance_group_configs(
group_name)
backend_service_name = 'end-to-end-test-backend-service'
self.test_resource_creator.create_regional_backend_service(
'sample_internal_backend_service.json', backend_service_name,
[instance_group_selfLink])
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
instance_group_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
with self.assertRaises(MigrationFailed):
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# the migration is failed and the resources are rolled back
new_instance_group_config = self.google_api_interface.get_multi_zone_managed_instance_group_configs(
group_name)
self.assertTrue(
resource_config_is_unchanged_including_network(
original_instance_group_config, new_instance_group_config))
print('Pass the current test')
def testWithForwardingRuleAttached(self):
""" A forwaring rule is using the external backend service.
Try to migrate the external backend service directly.
Expectation: still can migrate
"""
### create test resources
backend_service_name = 'end-to-end-test-backend-service'
original_backend_selfLinks = []
operation = self.test_resource_creator.create_regional_backend_service(
'sample_internal_backend_service.json', backend_service_name,
original_backend_selfLinks)
original_backend_service_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_name)
backend_service_selfLink = operation['targetLink']
self.test_resource_creator.create_regional_forwarding_rule_with_backend_service(
'sample_tcp_regional_forwarding_rule_internal.json',
backend_service_name, backend_service_selfLink)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
backend_service_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
with self.assertRaises(MigrationFailed):
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# migration didn't start
new_backend_service_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_name)
self.assertTrue(
resource_config_is_unchanged_including_network(
original_backend_service_configs, new_backend_service_configs))
print('Pass the current test')
def testWithNoBackendsAttached(self):
backend_service_name = 'end-to-end-test-backend-service'
operation = self.test_resource_creator.create_global_backend_service(
'sample_external_backend_service.json', backend_service_name, [])
original_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
backend_service_selfLink = operation['targetLink']
# start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
backend_service_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_backend_service_configs, new_backend_service_configs))
print('Pass the current test')
def testWithBackendServiceAttached(self):
""" A backend service is in use by this forwarding rule
Expectation: both the forwarding rule and the backend service will be migrated.
"""
### create test resources
forwarding_rule_name = 'end-to-end-test-forwarding-rule'
backend_service_name = 'end-to-end-test-backend-service'
group_name_1 = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_1_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
backend_service_selfLink = \
self.test_resource_creator.create_regional_backend_service(
'sample_internal_backend_service.json',
backend_service_name, [instance_group_1_selfLink])['targetLink']
original_backend_service_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_name)
forwarding_rule_selfLink = \
self.test_resource_creator.create_regional_forwarding_rule_with_backend_service(
'sample_tcp_regional_forwarding_rule_internal.json',
forwarding_rule_name,
backend_service_selfLink)['targetLink']
original_forwarding_rule_config = self.google_api_interface.get_regional_forwarding_rule_config(
forwarding_rule_name)
### start migration
selfLink_executor = SelfLinkExecutor(self.compute,
forwarding_rule_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# check internal forwarding rule
new_forwarding_rule_config = self.google_api_interface.get_regional_forwarding_rule_config(
forwarding_rule_name)
self.assertTrue(resource_config_is_unchanged_except_for_network(
original_forwarding_rule_config,
new_forwarding_rule_config))
self.assertTrue(
check_selfLink_equal(new_forwarding_rule_config['network'],
self.test_resource_creator.network_selfLink))
# check backend service config
new_backend_service_configs = self.google_api_interface.get_regional_backend_service_configs(
backend_service_name)
self.assertTrue(resource_config_is_unchanged_except_for_network(
original_backend_service_configs,
new_backend_service_configs))
self.assertEqual(new_backend_service_configs['network'],
self.test_resource_creator.network_selfLink)
# check its backends
new_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs \
(
group_name_1)
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_1_configs,
new_instance_template_1_configs)
)
self.assertTrue(
check_instance_template_network(new_instance_template_1_configs,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
def testAutomodeSubnetworkExistsInBothRegions(self):
""" A backend service has two instance groups from two regions as backends.
The network is an auto-mode network, and it has subnet with the same name
in all regions.
Expectation: all the backends will be migrated
"""
### create test resources
auto_subnetwork_name = 'end-to-end-test-auto-subnetwork'
try:
target_network_selfLink = \
self.google_api_interface_region_1.get_network(
auto_subnetwork_name)['selfLink']
except:
target_network_selfLink = \
self.google_api_interface_region_1.create_auto_subnetwork(
auto_subnetwork_name)[
'targetLink']
group_name_1 = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator_region_1.create_regional_managed_instance_group(
self.test_resource_creator_region_1.
legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_1_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_1_configs = self.google_api_interface_region_1.get_multi_zone_instance_template_configs(
group_name_1)
group_name_2 = 'end-to-end-test-managed-instance-group-2'
operation = self.test_resource_creator_region_2.create_regional_managed_instance_group(
self.test_resource_creator_region_2.
legacy_instance_template_selfLink,
group_name_2,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_2_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_2_configs = self.google_api_interface_region_2.get_multi_zone_instance_template_configs(
group_name_2)
backend_service_name = 'end-to-end-test-backend-service'
operation = self.test_resource_creator_region_1.create_global_backend_service(
'sample_external_backend_service.json', backend_service_name,
[instance_group_2_selfLink, instance_group_1_selfLink])
original_backend_service_configs = self.google_api_interface_region_1.get_global_backend_service_configs(
backend_service_name)
backend_service_selfLink = operation['targetLink']
### start migration
selfLink_executor = SelfLinkExecutor(self.compute,
backend_service_selfLink,
auto_subnetwork_name,
auto_subnetwork_name)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_backend_service_configs = self.google_api_interface_region_1.get_global_backend_service_configs(
backend_service_name)
# check backend service config
self.assertTrue(
resource_config_is_unchanged_including_network(
original_backend_service_configs, new_backend_service_configs))
# check its backends
new_instance_template_1_configs = self.google_api_interface_region_1.get_multi_zone_instance_template_configs(
group_name_1)
new_instance_template_2_configs = self.google_api_interface_region_2.get_multi_zone_instance_template_configs(
group_name_2)
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_1_configs,
new_instance_template_1_configs))
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_2_configs,
new_instance_template_2_configs))
# network changed
self.assertTrue(
check_instance_template_network(new_instance_template_1_configs,
target_network_selfLink))
self.assertTrue(
check_instance_template_network(new_instance_template_2_configs,
target_network_selfLink))
print('Pass the current test')
def testCustomSubnetworkExistsInOnlyOneRegion(self):
""" A backend service has two instance groups from two regions as backends.
Expectation: rollback will happen
"""
### create test resources
target_subnetwork_name = 'subnetwork-only-in-region-1'
target_subnetwork_selfLink = \
self.google_api_interface_region_1.create_subnetwork_using_random_ip_range(
target_subnetwork_name,
self.test_resource_creator_region_1.network_selfLink
)['targetLink']
group_name_1 = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator_region_1.create_regional_managed_instance_group(
self.test_resource_creator_region_1.
legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_1_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_1_configs = self.google_api_interface_region_1.get_multi_zone_instance_template_configs(
group_name_1)
group_name_2 = 'end-to-end-test-managed-instance-group-2'
operation = self.test_resource_creator_region_2.create_regional_managed_instance_group(
self.test_resource_creator_region_2.
legacy_instance_template_selfLink,
group_name_2,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_2_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_2_configs = self.google_api_interface_region_2.get_multi_zone_instance_template_configs(
group_name_2)
backend_service_name = 'end-to-end-test-backend-service'
operation = self.test_resource_creator_region_1.create_global_backend_service(
'sample_external_backend_service.json', backend_service_name,
[instance_group_2_selfLink, instance_group_1_selfLink])
original_backend_service_configs = self.google_api_interface_region_1.get_global_backend_service_configs(
backend_service_name)
backend_service_selfLink = operation['targetLink']
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute, backend_service_selfLink,
self.test_resource_creator_region_1.network_name,
target_subnetwork_name)
with self.assertRaises(MigrationFailed):
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_backend_service_configs = self.google_api_interface_region_1.get_global_backend_service_configs(
backend_service_name)
# check backend service config
self.assertTrue(
resource_config_is_unchanged_including_network(
original_backend_service_configs, new_backend_service_configs))
# check its backends
new_instance_template_1_configs = self.google_api_interface_region_1.get_multi_zone_instance_template_configs(
group_name_1)
new_instance_template_2_configs = self.google_api_interface_region_2.get_multi_zone_instance_template_configs(
group_name_2)
# configs are unchanged including network
self.assertTrue(
instance_template_config_is_unchanged(
original_instance_template_1_configs,
new_instance_template_1_configs))
self.assertTrue(
instance_template_config_is_unchanged(
original_instance_template_2_configs,
new_instance_template_2_configs))
print('Pass the current test')
def testWithTargetHttpProxy(self):
### create test resources
forwarding_rule_name = 'end-to-end-test-forwarding-rule'
group_name_1 = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_1_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
backend_service_name = 'end-to-end-test-backend-service'
original_backend_selfLinks = [instance_group_1_selfLink]
operation = self.test_resource_creator.create_global_backend_service(
'sample_http_backend_service.json', backend_service_name,
original_backend_selfLinks)
original_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
backend_service_selfLink = operation['targetLink']
urlmap_selfLink = \
self.test_resource_creator.create_urlmapping(backend_service_name,
backend_service_selfLink)[
'targetLink']
proxy_selfLink = self.test_resource_creator.create_http_target_proxy(
backend_service_name, urlmap_selfLink)['targetLink']
forwarding_rule_selfLink = \
self.test_resource_creator.create_global_forwarding_rule_with_target(
'sample_global_forwarding_rule.json',
forwarding_rule_name,
proxy_selfLink)['targetLink']
original_forwarding_rule_config = self.google_api_interface.get_global_forwarding_rule_config(
forwarding_rule_name)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
forwarding_rule_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
# check forwarding rule config
new_forwarding_rule_config = self.google_api_interface.get_global_forwarding_rule_config(
forwarding_rule_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_forwarding_rule_config, new_forwarding_rule_config))
# check backend service config
new_backend_service_configs = self.google_api_interface.get_global_backend_service_configs(
backend_service_name)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_backend_service_configs, new_backend_service_configs))
# check its backends
new_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_1_configs,
new_instance_template_1_configs))
# network changed
self.assertTrue(
check_instance_template_network(
new_instance_template_1_configs,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
def testWithTargetHttpProxyRelatedToMultipleBackendServices(self):
""" The urlMapping is related to two backend service.
All the backend services will be migrated.
"""
### create test resrouces
forwarding_rule_name = 'end-to-end-test-forwarding-rule'
group_name_1 = 'end-to-end-test-managed-instance-group-1'
operation = self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_1_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
group_name_2 = 'end-to-end-test-managed-instance-group-2'
operation = self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name_2,
'sample_multi_zone_managed_instance_group.json',
)
instance_group_2_selfLink = operation['targetLink'].replace(
'/instanceGroupManagers/', '/instanceGroups/')
original_instance_template_2_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_2)
backend_service_name_1 = 'end-to-end-test-backend-service-1'
original_backend_selfLinks_1 = [instance_group_1_selfLink]
backend_service_selfLink_1 = \
self.test_resource_creator.create_global_backend_service(
'sample_http_backend_service.json',
backend_service_name_1, original_backend_selfLinks_1)[
'targetLink']
backend_service_name_2 = 'end-to-end-test-backend-service-2'
original_backend_selfLinks_2 = [instance_group_2_selfLink]
backend_service_selfLink_2 = \
self.test_resource_creator.create_global_backend_service(
'sample_http_backend_service.json',
backend_service_name_2, original_backend_selfLinks_2)[
'targetLink']
backend_service_selfLinks = [
backend_service_selfLink_1, backend_service_selfLink_2
]
urlmap_name = 'end-to-ent-test-urlmapping'
urlmap_selfLink = \
self.test_resource_creator.create_urlmapping_using_two_backend_service(
urlmap_name,
backend_service_selfLinks)[
'targetLink']
proxy_selfLink = self.test_resource_creator.create_http_target_proxy(
urlmap_name, urlmap_selfLink)['targetLink']
forwarding_rule_selfLink = \
self.test_resource_creator.create_global_forwarding_rule_with_target(
'sample_global_forwarding_rule.json',
forwarding_rule_name,
proxy_selfLink)['targetLink']
original_backend_service_configs_1 = self.google_api_interface.get_global_backend_service_configs(
backend_service_name_1)
original_backend_service_configs_2 = self.google_api_interface.get_global_backend_service_configs(
backend_service_name_2)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
forwarding_rule_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_backend_service_configs_1 = self.google_api_interface.get_global_backend_service_configs(
backend_service_name_1)
new_backend_service_configs_2 = self.google_api_interface.get_global_backend_service_configs(
backend_service_name_2)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_backend_service_configs_1,
new_backend_service_configs_1))
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_backend_service_configs_2,
new_backend_service_configs_2))
# check its backends
new_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
new_instance_template_2_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_2)
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_1_configs,
new_instance_template_1_configs))
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_2_configs,
new_instance_template_2_configs))
# network changed
self.assertTrue(
check_instance_template_network(
new_instance_template_1_configs,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
self.assertTrue(
check_instance_template_network(
new_instance_template_2_configs,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
def testInstancesAndManagedInstanceGroupsMixedBackends(self):
""" The target pool served by both instances and managed instance groups
"""
### create test resources
group_name_1 = 'end-to-end-test-managed-instance-group-1'
self.test_resource_creator.create_regional_managed_instance_group(
self.test_resource_creator.legacy_instance_template_selfLink,
group_name_1,
'sample_multi_zone_managed_instance_group.json',
)
original_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
instance_name_1 = 'end-to-end-test-instance-1'
operation = self.test_resource_creator.create_instance_using_template(
instance_name_1,
self.test_resource_creator.legacy_instance_template_selfLink)
instance_1_selfLink = operation['targetLink']
original_instance_1_config = self.google_api_interface.get_instance_configs(
instance_name_1)
target_pool_name = 'end-to-end-test-target-pool'
operation = self.test_resource_creator.create_target_pool_with_health_check(
'sample_target_pool_with_no_instance.json',
target_pool_name, [group_name_1], [instance_1_selfLink],
health_check_selfLink=None)
target_pool_selfLink = operation['targetLink']
# time allowance to let the instance groups create instances
time.sleep(10)
### start migration
selfLink_executor = SelfLinkExecutor(
self.compute,
target_pool_selfLink,
self.test_resource_creator.network_name,
self.test_resource_creator.subnetwork_name,
)
migration_handler = selfLink_executor.build_migration_handler()
migration_handler.network_migration()
### check migration result
new_instance_template_1_configs = self.google_api_interface.get_multi_zone_instance_template_configs(
group_name_1)
self.assertTrue(
instance_template_config_is_unchanged_except_for_network_and_name(
original_instance_template_1_configs,
new_instance_template_1_configs))
new_instance_1_config = self.google_api_interface.get_instance_configs(
instance_name_1)
self.assertTrue(
resource_config_is_unchanged_except_for_network(
original_instance_1_config, new_instance_1_config))
# network changed
self.assertTrue(
check_instance_template_network(
new_instance_template_1_configs,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
self.assertTrue(
check_instance_network(
new_instance_1_config,
self.test_resource_creator.network_selfLink,
self.test_resource_creator.subnetwork_selfLink))
print('Pass the current test')
