def get(self, request, provider_uuid, identity_uuid, instance_id):
"""
Authentication Required, get instance details.
"""
user = request.user
# NOTE: This 'Scheme' should be used across
# the ENTIRE API v1 (Machines, Volumes, Sizes)
# NOTE: Especially the part below, where you end date
# all the things that are 'inactive'
try:
provider = Provider.objects.get(uuid=provider_uuid)
if not provider.is_active():
raise ProviderNotActive(provider)
except Provider.DoesNotExist:
return invalid_creds(provider_uuid, identity_uuid)
except ProviderNotActive as pna:
return inactive_provider(pna)
# Cleared provider testing -- ready for driver prep.
try:
esh_driver = prepare_driver(request, provider_uuid, identity_uuid)
if not esh_driver:
return invalid_creds(provider_uuid, identity_uuid)
logger.info("InstanceQuery Looking for %s" % instance_id)
esh_instance = esh_driver.get_instance(instance_id)
logger.info("InstanceQuery Found instance %s" % esh_instance)
except (socket_error, ConnectionFailure):
logger.exception("Connection failure prevented InstanceQuery")
return connection_failure(provider_uuid, identity_uuid)
except LibcloudInvalidCredsError:
logger.exception("Invalid credentialsprevented InstanceQuery")
return invalid_creds(provider_uuid, identity_uuid)
except Exception as exc:
logger.exception("Encountered a generic exception. "
"Returning 409-CONFLICT")
return failure_response(status.HTTP_409_CONFLICT, str(exc.message))
# NOTE: Especially THIS part below, where you end date all the
# things that are 'inactive'
if not esh_instance:
try:
core_inst = CoreInstance.objects.get(
provider_alias=instance_id,
source__provider__uuid=provider_uuid,
created_by_identity__uuid=identity_uuid)
core_inst.end_date_all()
except CoreInstance.DoesNotExist:
pass
return instance_not_found(instance_id)
core_instance = convert_esh_instance(esh_driver, esh_instance,
provider_uuid, identity_uuid,
user)
serialized_data = InstanceSerializer(core_instance,
context={
"request": request
}).data
response = Response(serialized_data)
response['Cache-Control'] = 'no-cache'
return response
def get_esh_driver(core_identity, username=None):
try:
core_provider = core_identity.provider
if not core_provider.is_active():
raise ProviderNotActive(core_identity.provider)
esh_map = get_esh_map(core_provider)
if not username:
user = core_identity.created_by
else:
user = User.objects.get(username=username)
provider = get_esh_provider(core_provider, username=user.username)
provider_creds = core_identity.provider.get_esh_credentials(provider)
identity_creds = core_identity.get_credentials()
identity = esh_map['identity'](provider, user=user, **identity_creds)
driver = esh_map['driver'](provider, identity, **provider_creds)
return driver
except Exception as e:
logger.exception(e)
raise
