source_machine_image
(string) - The UUID of the image to base the new
image on. Triton supports multiple types of images, called 'brands' in
Triton / Joyent lingo, for contains and VM's. See the chapter Containers
and virtual machines in
the Joyent Triton documentation for detailed information. The following
brands are currently supported by this builder:joyent andkvm. The
choice of base image automatically decides the brand. On the Joyent public
cloud a valid source_machine_image could for example be
70e3ae72-96b6-11e6-9056-9737fd4d0764 for version 16.3.1 of the 64bit
SmartOS base image (a 'joyent' brand image). source_machine_image_filter
can be used to populate this UUID.