A script to build libvirt images, attach to bond0, and run an initial script on startup

create.sh

# A script to build libvirt images, attach to bond0, and run an initial playbook on startup
# ex. Linux 4x4
# ./create -s hostname -r 4096 -d 50 -c 4

while getopts 's:r:d:c:' flag; do
  case "${flag}" in
    s) server="${OPTARG}" ;;
    r) ram=${OPTARG} ;;
    d) disk=${OPTARG} ;;
    c) vcpu=${OPTARG} ;;
    *) exit 1 ;;
  esac
done

if [[ -z $server ]]; then
  echo "no server name provided"
  exit 1
fi 

echo "building $server...."
sudo virt-builder centos-7.6 --format qcow2 --output /var/lib/libvirt/images/$server.qcow2 --size ${disk:-50}G --root-password file:/root/password --hostname $server --firstboot /root/init.sh || exit 127

echo "importing $server...."
sudo virt-install --name $server --vcpus ${vcpu:-2} --ram ${ram:-4096} --disk path=/var/lib/libvirt/images/$server.qcow2,format=qcow2,cache=writeback --import --wait 0 --os-variant=rhel7 || exit 127

echo "attaching bridged interface...."
number=`sudo virsh list --all | grep $server | awk '{print $1;}'`
sudo virsh attach-interface $server --type direct --source br0 --model virtio --config --live