feat(terraform): add Proxmox VM and Unifi DHCP modules (Phase 2)

terraform/proxmox/vm/main.tf

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+# ─── VM ID Derivation ────────────────────────────────────────────────────────
+# Convention carried from existing Ansible playbooks:
+# VM ID = {third_octet}{fourth_octet:03d}
+# Example: 10.1.71.35 → 71035
+
+locals {
+  ip_octets = split(".", var.ip_address)
+  vm_id     = tonumber("${local.ip_octets[2]}${format("%03d", tonumber(local.ip_octets[3]))}")
+}
+
+# ─── Template Lookup ─────────────────────────────────────────────────────────
+# Find the template VM ID by name on the clone node
+
+data "proxmox_virtual_environment_vms" "templates" {
+  node_name = var.clone_node
+
+  filter {
+    name   = "template"
+    values = ["true"]
+  }
+
+  filter {
+    name   = "name"
+    values = [var.template_name]
+  }
+}
+
+# ─── VM Resource ─────────────────────────────────────────────────────────────
+
+resource "proxmox_virtual_environment_vm" "vm" {
+  name    = var.hostname
+  vm_id   = local.vm_id
+  node_name = var.target_node
+
+  description = "Provisioned by mk-labs pipeline on ${timestamp()}"
+  tags        = ["managed", "pipeline"]
+
+  # Clone from template on fantasyland
+  clone {
+    vm_id   = data.proxmox_virtual_environment_vms.templates.vms[0].vm_id
+    node_name = var.clone_node
+    full      = true
+    datastore_id = var.datastore
+  }
+
+  # Cloud-init configuration
+  # Uses DHCP — Unifi DHCP reservation is created before VM starts
+  initialization {
+    ip_config {
+      ipv4 {
+        address = "dhcp"
+      }
+    }
+
+    dns {
+      servers = var.dns_servers
+      domain  = var.search_domain
+    }
+
+    datastore_id = var.datastore
+  }
+
+  # Network interface
+  network_device {
+    bridge  = var.bridge
+    model   = "virtio"
+    vlan_id = var.vlan_id
+  }
+
+  # VM stays STOPPED after clone.
+  # n8n handles: DHCP reservation → HA affinity rule → VM start
+  # This ensures DHCP is in place before first boot.
+  started = false
+
+  # QEMU guest agent is installed in template (via Packer).
+  # Note: Proxmox 9 requires VM.GuestAgent.Audit privilege on the API token.
+  agent {
+    enabled = true
+  }
+
+  # Prevent Terraform from fighting with manual changes
+  lifecycle {
+    ignore_changes = [
+      description,
+      tags,
+    ]
+  }
+}

terraform/proxmox/vm/outputs.tf

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+output "vm_id" {
+  description = "Proxmox VM ID of the created VM."
+  value       = proxmox_virtual_environment_vm.vm.vm_id
+}
+
+output "mac_address" {
+  description = "MAC address of the VM's first network interface."
+  value       = proxmox_virtual_environment_vm.vm.network_device[0].mac_address
+}
+
+output "hostname" {
+  description = "Hostname of the created VM."
+  value       = var.hostname
+}
+
+output "ip_address" {
+  description = "IP address of the created VM."
+  value       = var.ip_address
+}
+
+output "node_name" {
+  description = "Proxmox node where the VM is running."
+  value       = proxmox_virtual_environment_vm.vm.node_name
+}

terraform/proxmox/vm/providers.tf

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+terraform {
+  required_version = ">= 1.5.0"
+
+  required_providers {
+    proxmox = {
+      source  = "bpg/proxmox"
+      version = ">= 0.74.0"
+    }
+  }
+}
+
+provider "proxmox" {
+  endpoint  = var.proxmox_api_url
+  api_token = var.proxmox_api_token
+  insecure  = true
+
+  ssh {
+    agent = true
+  }
+}

terraform/proxmox/vm/terraform.tfvars.example

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+# Copy this file to terraform.tfvars and fill in the values.
+# terraform.tfvars is in .gitignore — never commit secrets.
+
+proxmox_api_url   = "https://fantasyland.mk-labs.net:8006"
+proxmox_api_token = "terraform@pve!terraform-token=your-token-secret-here"
+
+# These values come from n8n via -var flags at runtime:
+# hostname      = "test-vm"
+# ip_address    = "10.1.71.100"
+# target_node   = "fantasyland"
+# template_name = "ubuntu-24.04-small"
+# datastore     = "liberty-tree"
+# vlan_id       = 71

terraform/proxmox/vm/variables.tf

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+# ─── Provider Authentication ─────────────────────────────────────────────────
+
+variable "proxmox_api_url" {
+  type        = string
+  description = "Proxmox API endpoint URL (e.g., https://fantasyland.mk-labs.net:8006)"
+}
+
+variable "proxmox_api_token" {
+  type        = string
+  description = "Proxmox API token in format: user@realm!token-name=token-secret"
+  sensitive   = true
+}
+
+# ─── VM Identity ─────────────────────────────────────────────────────────────
+
+variable "hostname" {
+  type        = string
+  description = "VM hostname. Used as the Proxmox VM name and cloud-init hostname."
+}
+
+variable "ip_address" {
+  type        = string
+  description = "Primary IP address for the VM (without CIDR, e.g., 10.1.71.100). Used for VM ID derivation and DHCP reservation."
+}
+
+variable "dns_servers" {
+  type        = list(string)
+  description = "DNS servers for the VM."
+  default     = ["10.1.71.102", "10.1.71.1"]
+}
+
+variable "search_domain" {
+  type        = string
+  description = "DNS search domain for the VM."
+  default     = "mk-labs.net"
+}
+
+# ─── Proxmox Placement ──────────────────────────────────────────────────────
+
+variable "clone_node" {
+  type        = string
+  description = "Proxmox node where templates live. Cloning always happens here."
+  default     = "fantasyland"
+}
+
+variable "target_node" {
+  type        = string
+  description = "Proxmox node for final VM placement. VM is migrated here after clone."
+}
+
+variable "datastore" {
+  type        = string
+  description = "Proxmox storage pool for VM disks."
+  default     = "liberty-tree"
+}
+
+# ─── Template Selection ─────────────────────────────────────────────────────
+
+variable "template_name" {
+  type        = string
+  description = "Name of the Proxmox VM template to clone."
+
+  validation {
+    condition = contains([
+      "ubuntu-24.04-small",
+      "ubuntu-24.04-medium",
+      "ubuntu-24.04-large",
+      "ubuntu-24.04-large-plus",
+      "ubuntu-24.04-xlarge",
+      "ubuntu-24.04-xlarge-plus",
+    ], var.template_name)
+    error_message = "template_name must be a valid Ubuntu 24.04 template."
+  }
+}
+
+# ─── Network ─────────────────────────────────────────────────────────────────
+
+variable "vlan_id" {
+  type        = number
+  description = "VLAN tag for the VM network interface."
+  default     = 71
+}
+
+variable "bridge" {
+  type        = string
+  description = "Proxmox network bridge for the VM."
+  default     = "vmbr0"
+}