def get_instance():
"""Get a resource based on the application environment.
Returns a `Resource` configured for the current environment, or None if the
environment is unknown or unsupported.
Supported environments include:
1. 'gke_container'
- https://cloud.google.com/monitoring/api/resources#tag_gke_container
2. 'gce_instance'
- https://cloud.google.com/monitoring/api/resources#tag_gce_instance
3. 'aws_ec2_instance'
- https://cloud.google.com/monitoring/api/resources#tag_aws_ec2_instance
:rtype: :class:`opencensus.common.resource.Resource` or None
:return: A `Resource` configured for the current environment.
"""
if is_gke_environment():
return resource.Resource(
_GKE_CONTAINER,
gcp_metadata_config.GcpMetadataConfig().get_gke_metadata())
if is_gce_environment():
return resource.Resource(
_GCE_INSTANCE,
gcp_metadata_config.GcpMetadataConfig().get_gce_metadata())
if is_aws_environment():
return resource.Resource(
_AWS_EC2_INSTANCE, (aws_identity_doc_utils.
AwsIdentityDocumentUtils().get_aws_metadata()))
return None
def get_instance():
"""Get a resource based on the application environment.
Returns a `Resource` configured for the current environment, or None if the
environment is unknown or unsupported.
:rtype: :class:`opencensus.common.resource.Resource` or None
:return: A `Resource` configured for the current environment.
"""
resources = []
env_resource = resource.get_from_env()
if env_resource is not None:
resources.append(env_resource)
if k8s_utils.is_k8s_environment():
resources.append(resource.Resource(
_K8S_CONTAINER, k8s_utils.get_k8s_metadata()))
if is_gce_environment():
resources.append(resource.Resource(
_GCE_INSTANCE,
gcp_metadata_config.GcpMetadataConfig().get_gce_metadata()))
elif is_aws_environment():
resources.append(resource.Resource(
_AWS_EC2_INSTANCE,
(aws_identity_doc_utils.AwsIdentityDocumentUtils()
.get_aws_metadata())))
if not resources:
return None
return resource.merge_resources(resources)
def test_export_with_resource(self, mock_get_instance):
event = threading.Event()
requests = []
def _helper(request_iterator, context):
for r in request_iterator:
requests.append(r)
event.set()
yield
self._add_and_start_service(GenericRpcHandler(_helper))
mock_get_instance.return_value = resource.Resource(
type_='gce_instance', labels={'key1': 'value1'})
_create_rpc_handler(self._create_stub()).send(
metrics_service_pb2.ExportMetricsServiceRequest())
self.assertTrue(event.wait(timeout=1))
self.assertEqual(
requests[0].resource,
resource_pb2.Resource(type='gce_instance',
labels={'key1': 'value1'}))
