# proxmox-talos-opentofu
Proof of concept project using [OpenTofu](https://opentofu.org/) to install a Kubernetes cluster on a Proxmox VE
hypervisor using [Talos Linux](https://www.talos.dev/).

## Requirements
You need to have installed on your local machine:
* [OpenTofu](https://opentofu.org/)
* [kubectl](https://kubernetes.io/docs/reference/kubectl/) (for testing and cluster interaction)

## Provisioning
The project is grouped in two modules:
* proxmox: provisioning of virtual machines, operating systems and Kubernetes cluster
* kubernetes: provisioning of Kubernetes cluster resources

### Proxmox VE
So you want first to provision the Proxmox part: create a `configuration.auto.tfvars` file based on the example and
edit it so it suits your needs:
```shell
cd proxmox
cope configuration.auto.tfvars.example configuration.auto.tfvars
vim configuration.auto.tfvars
```
Then apply the configuration using OpenTofu:
```shell
tofu init
tofu plan
tofu apply
```
You can then grab and move the kube config file for Kubernetes provisioning like so:
```shell
tofu output kubeconfig -raw > ~/.kube/config
chmod 600 ~/.kube/config
```
Test if your cluster access works by listing the nodes:
```shell
kubectl get nodes
```
You might need to wait a bit until the cluster comes up. Proceed with the next step when all nodes are in the `ready`
state.

### Kubernetes
Secondly, you can provision the Resources inside the Kubernetes cluster. Currently, this project just installs
ArgoCD in the `argocd` namespace in the cluster. You can then add on top of this by adding your own resources 
using the GitOps approach.
You need to create a `configuration.auto.tfvars` file as well first:
```shell
cd kubernetes
cope configuration.auto.tfvars.example configuration.auto.tfvars
vim configuration.auto.tfvars
```
Then do the provisiong with OpenTofu:
```shell
tofu init
tofu plan
tofu apply
```

## Information Sources
* [Talos Linux documentation](https://www.talos.dev/v1.8/)
* [Talos Linux Image Factory](https://factory.talos.dev/)
* Terraform providers/modules
  * [terraform-provider-proxmox](https://github.com/Telmate/terraform-provider-proxmox)
  * [terraform-provider-talos](https://github.com/siderolabs/terraform-provider-talos)