From 4e2f951f6d961003a6dd5c6918fe8f4f52b5fe78 Mon Sep 17 00:00:00 2001
From: vandomej <jacob.vandome15@gmail.com>
Date: Sat, 27 Sep 2025 20:55:32 -0700
Subject: [PATCH] Trying to setup talos qemu with terraform

---
 README.md        |  12 ++-
 main.tf          | 189 +++++++++++++++++++++++++++++++++++++++++++++++
 terraform.tfvars |   4 +
 3 files changed, 204 insertions(+), 1 deletion(-)
 create mode 100644 main.tf
 create mode 100644 terraform.tfvars

diff --git a/README.md b/README.md
index 05d8708..b700a93 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,14 @@
-# Setup 
+# Setup Instructions
+
+Ensure you have [Homebrew](https://brew.sh/) installed on your machine.
+
+`/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"`
+
+Ensure you have the dependencies installed:
+
+`brew install terraform`
+
+# Development Environment Setup 
 
 `brew install minikube`
 
diff --git a/main.tf b/main.tf
new file mode 100644
index 0000000..2eee390
--- /dev/null
+++ b/main.tf
@@ -0,0 +1,189 @@
+terraform {
+  required_version = ">= 1.0"
+  required_providers {
+    talos = {
+      source  = "siderolabs/talos"
+      version = "~> 0.4"
+    }
+    libvirt = {
+      source  = "dmacvicar/libvirt"
+      version = "~> 0.7"
+    }
+  }
+}
+
+# Load variables from a .tfvars file
+variable "cluster_name" {
+  description = "The name of the Talos cluster"
+  type        = string
+  default     = "evolved-npcs-cluster"
+}
+
+variable "memory_mb" {
+  description = "Memory for each VM in MB"
+  type        = number
+  default     = 2048
+}
+
+variable "vcpu_count" {
+  description = "Number of vCPUs for each VM"
+  type        = number
+  default     = 2
+}
+
+# Configure providers
+provider "talos" {}
+
+provider "libvirt" {
+  uri = "qemu:///system"
+}
+
+# Create a dedicated network for Talos
+resource "libvirt_network" "talos_network" {
+  name      = "talos-network"
+  mode      = "nat"
+  domain    = "talos.local"
+  addresses = ["10.5.0.0/24"]
+  
+  dhcp {
+    enabled = true
+  }
+  
+  dns {
+    enabled = true
+  }
+}
+
+# Generate machine secrets
+resource "talos_machine_secrets" "this" {}
+
+# Create control plane configuration with correct endpoint
+resource "talos_machine_configuration" "controlplane" {
+  cluster_name     = var.cluster_name
+  cluster_endpoint = "https://10.5.0.0:6443"  # Fixed endpoint IP
+  machine_type     = "controlplane"
+  machine_secrets  = talos_machine_secrets.this.machine_secrets
+  
+  config_patches = [
+    yamlencode({
+      machine = {
+        install = {
+          disk = "/dev/vda"
+        }
+        network = {
+          interfaces = [
+            {
+              interface = "eth0"
+              addresses = ["10.5.0.0/24"]
+            }
+          ]
+        }
+      }
+    })
+  ]
+}
+
+# Download Talos kernel and initramfs
+resource "null_resource" "download_talos_files" {
+  triggers = {
+    version = "v1.6.4"  # Change to your preferred version
+  }
+  
+  provisioner "local-exec" {
+    command = <<EOT
+      mkdir -p _out/
+      curl -L -o _out/vmlinuz-amd64 https://github.com/siderolabs/talos/releases/download/${self.triggers.version}/vmlinuz-amd64
+      curl -L -o _out/initramfs-amd64.xz https://github.com/siderolabs/talos/releases/download/${self.triggers.version}/initramfs-amd64.xz
+    EOT
+  }
+}
+
+# Create a cloud-init disk for configuration
+resource "libvirt_cloudinit_disk" "commoninit" {
+  name           = "commoninit.iso"
+  user_data      = <<EOF
+#cloud-config
+EOF
+}
+
+# Create the QEMU domain with direct kernel boot
+resource "libvirt_domain" "talos-controlplane" {
+  name   = "talos-controlplane"
+  memory = vars.memory_mb
+  vcpu   = vars.vcpu_count
+
+  # Use kernel and initramfs directly
+  kernel = "${path.module}/_out/vmlinuz-amd64"
+  initrd = "${path.module}/_out/initramfs-amd64.xz"
+  
+  # Talos kernel parameters
+  cmdline = [
+    "talos.platform=metal",
+    "talos.config=http://10.5.0.1:8001/controlplane.yaml",
+    "ip=10.5.0.2::10.5.0.1:255.255.255.0::eth0:off",
+    "init_on_alloc=1",
+    "slab_nomerge",
+    "pti=on",
+    "console=tty0",
+    "console=ttyS0",
+    "printk.devkmsg=on"
+  ]
+
+  disk {
+    volume_id = libvirt_volume.talos-disk.id
+  }
+
+  network_interface {
+    network_id = libvirt_network.talos_network.id
+    addresses  = ["10.5.0.2"]
+    hostname   = "controlplane"
+  }
+
+  # Small disk for Talos
+  disk {
+    file = "/tmp/talos-disk.img"
+  }
+
+  console {
+    type        = "pty"
+    target_port = "0"
+    target_type = "serial"
+  }
+
+  graphics {
+    type        = "spice"
+    listen_type = "address"
+    autoport    = true
+  }
+  
+  depends_on = [null_resource.download_talos_files]
+}
+
+# Create a small disk
+resource "libvirt_volume" "talos-disk" {
+  name   = "talos-disk"
+  pool   = "default"
+  size   = 10 * 1024 * 1024 * 1024  # 10GB
+  format = "qcow2"
+}
+
+# Output important information
+output "controlplane_ip" {
+  value = "10.5.0.0"
+}
+
+output "talosconfig" {
+  value     = talos_machine_configuration.controlplane.machine_config
+  sensitive = true
+}
+
+output "next_steps" {
+  value = <<EOT
+After applying:
+1. The control plane will be available at 10.5.0.0
+2. Apply the configuration using talosctl:
+   talosctl apply-config --insecure --nodes 10.5.0.0 --file controlplane.yaml
+3. Bootstrap the cluster:
+   talosctl bootstrap --nodes 10.5.0.0
+EOT
+}
\ No newline at end of file
diff --git a/terraform.tfvars b/terraform.tfvars
new file mode 100644
index 0000000..929e233
--- /dev/null
+++ b/terraform.tfvars
@@ -0,0 +1,4 @@
+# You can customize these values
+cluster_name = "evolved-npcs-cluster"
+memory_mb    = 2048
+vcpu_count   = 2
\ No newline at end of file