Let’s prepare templates to generate nodes for our labs. We’ll start with VyOS , an open-source router and firewall. VyOS is available as a rolling release  and can be downloaded from GitHub  in ISO format. In this example, we’ll use the vyos-1.5-rolling-202407171706-amd64.iso image, downloaded to /usr/src on a Proxmox host.

The official documentation  guides us on creating a VyOS node on Proxmox. We’ll go through the steps to create a VyOS template and a basic lab with two interconnected VyOS nodes.

On my Proxmox host, I’ve added an external disk named unetlab for storing ISO images:

pvesh get /nodes/proxmox1/storage

pvesh is the CLI for using Proxmox’s REST APIs. Learning to use it now will simplify our future interactions with Proxmox hosts via API.

Referencing the Proxmox documentation , we find the required location for the ISO file. Copy the downloaded file and import it:

cp /usr/src/vyos-1.5-rolling-202407171706-amd64.iso /var/tmp/pveupload-0001
pvesh create /nodes/proxmox1/storage/unetlab/upload -content iso -filename vyos-1.5-rolling-202407171706-amd64.iso -tmpfilename /var/tmp/pveupload-0001

Verify the ISO file is available:

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