Dennis Faucher :donor: :mastodon:@dennisfaucher@infosec.exchange
Just wrote this quickie shell script to create and launch Debian13 KVM VMs. Just provide the hostname. Sharing in case someone else can use this.
The template is the debian13 nocloud image that I expanded to 20 GB. https://cloud.debian.org/images/cloud/trixie/latest/debian-13-nocloud-amd64.qcow2
==========
$ cat create_debian13_vm.sh
#!/bin/bash
if [ -z "$1" ]; then
echo "Error: No argument supplied."
echo "Usage: $0 <vm_name>"
exit 1
fi
echo "Creating root drive from template... (sudo password required)"
sudo cp /var/lib/libvirt/images/debian13-20GB-template.qcow2 /var/lib/libvirt/images/$1.qcow2
echo "Customizing root drive with root password, hostname, updates, dennis user, ssh, sudo..."
sudo virt-customize --add "/var/lib/libvirt/images/$1.qcow2" --root-password password:root --hostname "$1" --firstboot-command 'apt update && apt upgrade -y && apt install openssh-server -y && useradd -m -p "" dennis && chage -d 0 dennis && sudo usermod -aG sudo dennis'
echo "Installing and starting VM..."
sudo virt-install --name $1 --ram 4096 --vcpus 2 --disk path=/var/lib/libvirt/images/$1.qcow2,format=qcow2,bus=virtio --import --os-variant debian13 --network bridge=br0 --graphics spice --noautoconsole
virsh --connect qemu:///system list --all
#virtualization #KVM #QEMU #Debian #Linux