Comment 17 for bug 1734167

Marked as fix-released.
I tested today with 20180115.1 image from bionic.

wget http://cloud-images.ubuntu.com/bionic/20180115.1/bionic-server-cloudimg-amd64.img -O bionic-server-cloudimg-amd64.img

url="https://smoser.brickies.net/ubuntu/nocloud/"
qemu-system-x86_64 -enable-kvm -m 768 \
   -net nic -net user \
   -drive file=disk.img,if=virtio \
   -smbios "type=1,serial=ds=nocloud-net;s=$url"

Just for info, showing:
$ curl https://smoser.brickies.net/ubuntu/nocloud/user-data
#cloud-config
password: passw0rd
chpasswd: { expire: False }
ssh_pwauth: True

$ curl https://smoser.brickies.net/ubuntu/nocloud/meta-data
instance-id: iid-brickies-nocloud