Images
Contrary to an LXD managed cluster, you have to specify which images should be available on the hosts.
To add a new image to the list of images to be synced, create an image object at /api/image/
with e.g.
"sync": true,
"server": "https://cloud-images.ubuntu.com/releases",
"protocol": "simplestreams",
"alias": "x"
Make sure that the images have a working cloud-init
installed, as this is necessary for automatic provisioning