create_ubuntu_vm.sh

#!/usr/bin/env bash
cat << EOF > /etc/libvirt/qemu/$1.crm
primitive $1 VirtualDomain \
        params config="/etc/libvirt/qemu/$1.xml" hypervisor="qemu:///system" migration_transport=ssh \
        meta allow-migrate=true is-managed="true" target-role=Started \
        op start timeout=120s interval=0 \
        op stop timeout=120s interval=0 \
        op monitor timeout=30 interval=10 depth=0 \
        utilization cpu=2 hv_memory=4096
commit
EOF
virt-install \
        --name $1 \
        --os-type linux \
        --os-variant ubuntu16.04 \
        --virt-type kvm \
        --connect=qemu:///system \
        --vcpus 2 \
        --ram 4096 \
        --network bridge=br0,model=virtio \
        --serial pty \
        --console pty,target_type=serial \
        --disk path=/var/lib/libvirt/images/$1.qcow2,format=qcow2,size=$2,bus=virtio \
        --nographics \
        --location  'http://archive.ubuntu.com/ubuntu/dists/bionic/main/installer-amd64' \
        --extra-args "
    console=ttyS0,115200n9 serial
    auto=true
    priority=critical
    interface=auto
    language=en
    country=US
    locale=en_US.UTF-8
    console-setup/layoutcode=us
    console-setup/ask_detect=false
    keyboard-configuration/xkb-keymap=us
    preseed/url=http://i.pxe.to/preseed/ubuntu-18.04-amd64.preseed"