Use InstanceID metadata instead of InstanceName for one of the metric labels.
Use InstanceID metadata instead of InstanceName for one of the metric labels.

When running a MLLP adapter on GKE, container is crashing with error: "failed to configure monitoring: metadata: GCE metadata "instance/name" not defined". This is because GKE pods don't have "name" property.

PiperOrigin-RevId: 369641837

GoogleCloudPlatform/mllp