server image
A server image is a disk image created from a running server instance.  The
image is created in the Image store.
Compute v2
server image create
Create a new server disk image from an existing server
os server image create
    [--name <image-name>]
    [--wait]
    <server>
- 
--name <image-name>
- Name of new disk image (default: server name) 
- 
--wait
- Wait for operation to complete 
- 
<server>
- Server to create image (name or ID)