{
  "name": "web-1",
  "tenant": "acme",
  "backend": "qemu",
  "image": "/var/lib/fluxvm/images/base.qcow2",
  "vcpus": 2,
  "memory_mib": 2048,
  "network": { "mode": "tap", "netns": true },
  "ttl_seconds": 3600
}