Unattended Debian installation for proxmox cloud-init templates

If you like to setup a cloud-init template in Proxmox you can use this unattended installer.

Create unattended .iso

cd ./debian-11/
./build-iso.sh

Use unattended .iso

Upload debian-${version}-netinst-unattended.iso to your Proxmox storage and install your cloud-init template.

I recommend an automated .iso upload with the Terraform module danitso/proxmox and VM build with the proxmox Packer module. You can find a build automation on terraform base in ./build. First adjust the variables in the config files then build with terraform apply.