Product : AppScale, Eucalyptus/Current, 4.4.5
Feature : Metadata URL, Compute, Infrastructure Services
Content Owner:  John Gallucci
Summary
Metadata URL, featuring EC2-compatible information and thus compatible with cloud-init, is reachable from instances.
Details
https://docs.eucalyptus.cloud/eucalyptus/4.4.5/image-guide/ig_task_prepare_image.html