kvm.sh

ref: https://www.theurbanpenguin.com/using-cloud-images-in-kvm/

# Install KVM Deps
sudo apt -y install bridge-utils cpu-checker libvirt-clients libvirt-daemon qemu qemu-kvm virt-manager cloud-image-utils
kvm-ok

# Install an OS from an ISO file interactively
# sudo virt-install --name ubuntu-guest --os-variant ubuntu20.04 --vcpus 2 --ram 2048 --location http://ftp.ubuntu.com/ubuntu/dists/focal/main/installer-amd64/ --network bridge=virbr0,model=virtio --graphics none --extra-args='console=ttyS0,115200n8 serial'

# Get a cloud image
wget https://cloud-images.ubuntu.com/noble/current/noble-server-cloudimg-amd64.img
qemu-img info noble-server-cloudimg-amd64.img

# Resize cloud image
qemu-img resize thing.img 10G
sudo qemu-img convert -f qcow2 noble-server-cloudimg-amd64.img /var/lib/libvirt/images/noble.img
(from inside the VM: lsblk /dev/vda)

# Create a cloud-config file named cloud.txt
echo "
#cloud-config
password: password1
chpasswd: { expire: False }
ssh_pwauth: True
hostname: test1
" > cloud.txt

# Convert the cloud config file to a bootable iso image
sudo cloud-localds /var/lib/libvirt/images/test1.iso cloud.txt

# Start up the System
sudo virt-install --name test1 --memory 2096 --disk /var/lib/libvirt/images/noble.img,device=disk,bus=virtio --disk /var/lib/libvirt/images/test1.iso,device=cdrom --os-variant=ubuntu16.04 --virt-type=kvm --graphics=none --network network=default,model=virtio --import

# View volumes in the default pool
virsh list --all
vol-list --pool default

# Destroy the vm
virsh destroy _domain_id
virsh underfine _domain_id
virsh vol-delete --pool default /var/lib/libvirt/images/noble.img