From the Instances tab, users can perform the following instance (guest) actions:
- Additional Power Options
- Instance settings
- Refresh Status
- Manage Volumes (More)
These options are available after selecting one or more instances.
It is important to note that an instance snapshot, is a complete copy of the VM. This applies to any instance snapshot operation, regardless of hypervisor. This differs from the snapshot functionality traditionally seen in VMware vCenter.
For a tutorial on customizing a VM instance with Cloud-init; Customize a Virtual Machine Instance with Cloud-init
For more on Cloud-init see https://cloudinit.readthedocs.io/en/latest/