reluce

# All commands will be executed on a Proxmox host
sudo apt update -y && sudo apt install libguestfs-tools -y
wget https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.img
# Install qemu-guest-agent on the image. Additional packages can be specified by separating with a comma.
sudo virt-customize -a jammy-server-cloudimg-amd64.img --install qemu-guest-agent
# Read and set root user password from file.
sudo virt-customize -a jammy-server-cloudimg-amd64.img --root-password file:password_root.txt
# Create an additional user.
sudo virt-customize -a jammy-server-cloudimg-amd64.img --run-command "useradd -m -s /bin/bash myuser"
# Set password for that user.