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didnt you consider using cloud init images? maybe setup proxmox and create vms using cloud init, it would make quite simple add server/workers to your cluster

@white-battery-15789 this solution was developed mostly for on-premises offline machines and does not involve the use of the cloud by the customer. but as an exclusion in clouds we have no such kind of issues. so, developing a strategy for offline installation of k3s slows down our process

I work with many on premises, that is why i sugested cloud init with proxmox, you will need internet just once to setup cloud init template image. after that you can just use that template to build new vms. you can even generate your cloud build image on another proxmox instance and migrate it to your on premise node

so you want to offer smth like creating image of vm with k3s+helm+our deployment and share it to the customers for deployment on their own machines?

thanks for a fresh idea

K3s supports auto deploying manifests and also supplying container images that get loaded on startup for air gapped installs.