ccp.runtimes.lxd/focal-fossa-gpu/packer.json

{
   "builders": [
      {
       	"type": "lxd",
       	"name": "{{ user `name`}}",
       	"image": "ubuntu:20.04",
       	"output_image": "{{ user `name` }}",
       	"publish_properties": {
   	  "description": "{{ user `description`}}"
        }
      }
    ],
    "provisioners": [
      {
	"type" : "shell",
	"inline" : [
	   "apt-get update",
           "apt-get --yes install build-essential",
           "apt-get --yes install nvidia-cuda-toolkit"
	]
      }
    ],
    "post-processors": []
}