$ helm repo add qemu-vm https://lnattrass.github.io/docker-qemu-vm/
$ cat <<EOF > ./userdata
#cloud-config
password: ubuntu
chpasswd: { expire: False }
EOF
$ helm 
$ helm install --name=test --set=cpu=1 --set=replicas=2 --set-file userdata=./userdata
$ kubectl get pods
NAME                           READY   STATUS              RESTARTS   AGE
test-vm-0                   0/1     ContainerCreating   0          3s
$ kubectl logs -f test-vm-0 
$ kubectl exec -it test-vm-0 /vm/console 
Press CTRL+O to exit the console

.. you should see ubuntu-18.04 booting ..

Ubuntu 18.04.2 LTS test-vm-0 ttyS0

test-vm-0 login: ubuntu
Password: ubuntu

ubuntu@test-vm-0$ 
<ctrl+O>
$

Usage: entrypoint.py [OPTIONS]

Options:
  --cpu INTEGER            CPU's assigned to the VM
  --ram INTEGER            RAM assigned to the VM (in MB)
  --nic TEXT               Network Cards to Bridge to the VM (can be used
                           multiple times)
  --disk TEXT              Disks to provide to the VM (the first must be the
                           boot disk)
  --image-source TEXT      Image to download as the root disk
  --image-always-pull      Always download the root disk image?
  --immutable              When this machine is shutdown, discard all changes
                           to the disks.
  --passthrough-first-nic  Passthrough the first NIC's IP address from the
                           command line.
  --vm-data DIRECTORY      Path to store VM data
  --config FILE            Persistent VM configuration storage path
  --user-data FILE         Path to user-data
  --debug                  Enable debug logging
  --test                   Don't actually execute the VM
  --help                   Show this message and exit.