def GetResources(self, args, errors):
zone_names = [
self.CreateGlobalReference(zone, resource_type='zones').Name()
for zone in args.zones]
return lister.GetZonalResources(
service=self.service,
project=self.project,
requested_zones=zone_names,
filter_expr=self.GetFilterExpr(args),
http=self.http,
batch_url=self.batch_url,
errors=errors)
def AutoscalersForZone(zone,
project,
compute,
http,
batch_url,
fail_when_api_not_supported=True):
"""Finds all Autoscalers defined for a given project and zone.
Args:
zone: target zone
project: project owning resources.
compute: module representing compute api.
http: communication channel.
batch_url: batch url.
fail_when_api_not_supported: If true, raise tool exception if API does not
support autoscaling.
Returns:
A list of Autoscaler objects.
"""
# Errors is passed through library calls and modified with
# (ERROR_CODE, ERROR_MESSAGE) tuples.
errors = []
if hasattr(compute, 'autoscalers'):
# Explicit list() is required to unwind the generator and make sure errors
# are detected at this level.
autoscalers = list(
lister.GetZonalResources(
service=compute.autoscalers,
project=project,
requested_zones=[zone],
http=http,
batch_url=batch_url,
errors=errors,
filter_expr=None,
))
else:
autoscalers = []
if fail_when_api_not_supported:
errors.append((None, 'API does not support autoscaling'))
if errors:
utils.RaiseToolException(
errors,
error_message='Could not check if the Managed Instance Group is '
'Autoscaled.')
return autoscalers
def GetInstances(self):
"""Returns a generator of all instances in the project."""
compute = self.compute
errors = []
instances = lister.GetZonalResources(service=compute.instances,
project=self.project,
requested_zones=None,
filter_expr=None,
http=self.http,
batch_url=self.batch_url,
errors=errors)
if errors:
base_classes.RaiseToolException(
errors, error_message='Could not fetch all instances:')
return instances
