def fetch(key):
"""Gets instances created by the given instance group manager.
Args:
key: ndb.Key for a models.InstanceGroupManager entity.
Returns:
A list of instance URLs.
"""
entity = key.get()
if not entity:
logging.warning('InstanceGroupManager does not exist: %s', key)
return []
if not entity.url:
logging.warning('InstanceGroupManager URL unspecified: %s', key)
return []
parent = key.parent().get()
if not parent:
logging.warning('InstanceTemplateRevision does not exist: %s',
key.parent())
return []
if not parent.project:
logging.warning('InstanceTemplateRevision project unspecified: %s',
key.parent())
return []
api = gce.Project(parent.project)
result = api.get_instances_in_instance_group(
instance_group_managers.get_name(entity),
entity.key.id(),
max_results=500,
)
instance_urls = [
instance['instance'] for instance in result.get('items', [])
]
while result.get('nextPageToken'):
result = api.get_instances_in_instance_group(
instance_group_managers.get_name(entity),
entity.key.id(),
max_results=500,
page_token=result['nextPageToken'],
)
instance_urls.extend(
[instance['instance'] for instance in result['items']])
return instance_urls
def _delete(instance_template_revision, instance_group_manager, instance):
"""Deletes the given instance.
Args:
instance_template_revision: models.InstanceTemplateRevision.
instance_group_manager: models.InstanceGroupManager.
instance: models.Instance
"""
api = gce.Project(instance_template_revision.project)
try:
result = api.delete_instances(
instance_group_managers.get_name(instance_group_manager),
instance_group_manager.key.id(),
[instance.url],
)
if result['status'] != 'DONE':
logging.warning(
'Instance group manager operation failed: %s\n%s',
parent.key,
json.dumps(result, indent=2),
)
else:
metrics.send_machine_event('DELETION_SCHEDULED', instance.key.id())
except net.Error as e:
if e.status_code == 400:
metrics.send_machine_event('DELETION_SUCCEEDED', instance.key.id())
else:
raise
def _delete(instance_template_revision, instance_group_manager, instance):
"""Deletes the given instance.
Args:
instance_template_revision: models.InstanceTemplateRevision.
instance_group_manager: models.InstanceGroupManager.
instance: models.Instance
"""
api = gce.Project(instance_template_revision.project)
try:
result = api.delete_instances(
instance_group_managers.get_name(instance_group_manager),
instance_group_manager.key.id(),
[instance.url],
)
if result['status'] != 'DONE':
logging.warning(
'Instance group manager operation failed: %s\n%s',
parent.key,
json.dumps(result, indent=2),
)
except net.Error as e:
if e.status_code != 400:
# If the instance isn't found, assume it's already deleted.
raise
def _delete(instance_template_revision, instance_group_manager, instance):
"""Deletes the given instance.
Args:
instance_template_revision: models.InstanceTemplateRevision.
instance_group_manager: models.InstanceGroupManager.
instance: models.Instance
"""
api = gce.Project(instance_template_revision.project)
try:
result = api.delete_instances(
instance_group_managers.get_name(instance_group_manager),
instance_group_manager.key.id(),
[instance.url],
)
if result['status'] != 'DONE':
logging.warning(
'Instance group manager operation failed: %s\n%s',
parent.key,
json.dumps(result, indent=2),
)
except net.Error as e:
if e.status_code != 400:
# If the instance isn't found, assume it's already deleted.
raise
def fetch(key):
"""Gets instances created by the given instance group manager.
Args:
key: ndb.Key for a models.InstanceGroupManager entity.
Returns:
A list of instance URLs.
"""
entity = key.get()
if not entity:
logging.warning('InstanceGroupManager does not exist: %s', key)
return []
if not entity.url:
logging.warning('InstanceGroupManager URL unspecified: %s', key)
return []
parent = key.parent().get()
if not parent:
logging.warning('InstanceTemplateRevision does not exist: %s', key.parent())
return []
if not parent.project:
logging.warning(
'InstanceTemplateRevision project unspecified: %s', key.parent())
return []
api = gce.Project(parent.project)
result = api.get_instances_in_instance_group(
instance_group_managers.get_name(entity),
entity.key.id(),
max_results=500,
)
instance_urls = [instance['instance'] for instance in result.get('items', [])]
while result.get('nextPageToken'):
result = api.get_instances_in_instance_group(
instance_group_managers.get_name(entity),
entity.key.id(),
max_results=500,
page_token=result['nextPageToken'],
)
instance_urls.extend([instance['instance'] for instance in result['items']])
return instance_urls
def _delete(instance_template_revision, instance_group_manager, instance):
"""Deletes the given instance.
Args:
instance_template_revision: models.InstanceTemplateRevision.
instance_group_manager: models.InstanceGroupManager.
instance: models.Instance
"""
# We don't check if there are any pending deletion calls because we don't
# care. We just want the instance to be deleted, so we make repeated calls
# until the instance is no longer detected. However, we do care how long
# it takes, so we only write instance.deletion_ts once.
api = gce.Project(instance_template_revision.project)
try:
now = utils.utcnow()
result = api.delete_instances(
instance_group_managers.get_name(instance_group_manager),
instance_group_manager.key.id(),
[instance.url],
)
if result['status'] != 'DONE':
# This is not the status of the instance deletion, it's the status of
# scheduling the instance deletions in the managed instance group. If
# it's not DONE, the deletions won't even be attempted. If it is DONE,
# the actual deletions may still fail.
logging.warning(
'Instance group manager operation failed: %s\n%s',
instance_group_manager.key,
json.dumps(result, indent=2),
)
else:
if not instance.deletion_ts:
set_deletion_time(instance.key, now)
metrics.send_machine_event('DELETION_SCHEDULED',
instance.hostname)
except net.Error as e:
if e.status_code == 400:
if not instance.deletion_ts:
set_deletion_time(instance.key, now)
else:
raise