feat: modularise incus vm

infra/main.tofu

@@ -7,8 +7,8 @@ locals {
   ext_disk_size  = "16GiB"
   network_cidr   = "10.150.0.1/24"
 
-  master_count = 1
+  master_count = 2
-  worker_count = 1
+  worker_count = 0
 
   image = "ubuntu/26.04"
 }
@@ -70,93 +70,28 @@ resource "incus_network" "this" {
   }
 }
 
-resource "incus_instance" "master" {
+module "master" {
+  source = "./modules/incus_vm"
   count  = local.master_count
 
   name         = "master-${count.index}"
-  description = "Kubernetes Master ${count.index}"
   project      = incus_project.this.name
-
-  type     = "virtual-machine"
   image        = incus_image.this.fingerprint
   profiles     = [incus_profile.this.name]
-
+  network      = incus_network.this.name
-  wait_for {
+  ipv4_address = cidrhost(local.network_cidr, 2 + (2 * count.index))
-    type = "agent"
 }
 
-  device {
+module "worker" {
-    name = "eth0"
+  source = "./modules/incus_vm"
-    type = "nic"
-
-    properties = {
-      "network"      = incus_network.this.name
-      "ipv4.address" = cidrhost(local.network_cidr, 2 + (2 * count.index))
-    }
-  }
-
-  device {
-    name = "ext"
-    type = "disk"
-
-    properties = {
-      "pool"   = "default"
-      "source" = incus_storage_volume.master[count.index].name
-    }
-  }
-}
-
-resource "incus_storage_volume" "master" {
   count  = local.master_count
 
-  name        = "master-ext-${count.index}"
-  description = "External drive for master ${count.index}"
-  pool        = "default"
-  project     = incus_project.this.name
-
-  content_type = "block"
-
-  config = {
-    "size" = local.ext_disk_size
-  }
-}
-
-resource "incus_instance" "worker" {
-  count = local.worker_count
-
   name         = "worker-${count.index}"
-  description = "Kubernetes Worker ${count.index}"
   project      = incus_project.this.name
-
-  type     = "virtual-machine"
   image        = incus_image.this.fingerprint
   profiles     = [incus_profile.this.name]
-
+  network      = incus_network.this.name
-  wait_for {
+  ipv4_address = cidrhost(local.network_cidr, 3 + (2 * count.index))
-    type = "agent"
-  }
-
-  device {
-    name = "eth0"
-    type = "nic"
-
-    properties = {
-      "network"      = incus_network.this.name
-      "ipv4.address" = cidrhost(local.network_cidr, 3 + (2 * count.index))
-    }
-  }
-}
-
-# -------
-# Outputs
-# -------
-
-output "master_addresses" {
-  value = incus_instance.master[*].ipv4_address
-}
-
-output "worker_addresses" {
-  value = incus_instance.worker[*].ipv4_address
 }
 
 # ---------
@@ -164,12 +99,12 @@ output "worker_addresses" {
 # ---------
 
 terraform {
-  required_version = "~> 1"
+  required_version = "~> 1.12"
 
   required_providers {
     incus = {
       source  = "lxc/incus"
-      version = "~> 1"
+      version = "~> 1.1"
     }
   }
 }

infra/modules/incus_vm/main.tofu

@@ -0,0 +1,55 @@
+terraform {
+  required_providers {
+    incus = {
+      source  = "lxc/incus"
+      version = ">= 1.1.1"
+    }
+  }
+}
+
+resource "incus_instance" "this" {
+  name        = var.name
+  description = var.description
+  project     = var.project
+
+  type     = "virtual-machine"
+  image    = var.image
+  profiles = var.profiles
+
+  wait_for {
+    type = "agent"
+  }
+
+  device {
+    name = "eth0"
+    type = "nic"
+
+    properties = {
+      "network"      = var.network
+      "ipv4.address" = var.ipv4_address
+    }
+  }
+
+  device {
+    name = "ext"
+    type = "disk"
+
+    properties = {
+      "pool"   = "default"
+      "source" = incus_storage_volume.this.name
+    }
+  }
+}
+
+resource "incus_storage_volume" "this" {
+  name        = "${var.name}-ext"
+  description = "External disk for ${var.name}"
+  pool        = "default"
+  project     = var.project
+
+  content_type = "block"
+
+  config = {
+    "size" = "16GiB"
+  }
+}

infra/modules/incus_vm/variables.tofu

@@ -0,0 +1,42 @@
+variable "name" {
+  type        = string
+  description = "The name for this instance."
+  nullable    = false
+}
+
+variable "description" {
+  type        = string
+  description = "The description for this instance."
+  nullable    = false
+  default     = ""
+}
+
+variable "project" {
+  type        = string
+  description = "The project this instance belongs to."
+  nullable    = true
+}
+
+variable "image" {
+  type        = string
+  description = "The image for this instance."
+  nullable    = false
+}
+
+variable "profiles" {
+  type        = list(string)
+  description = "The profiles for this instance."
+  nullable    = false
+}
+
+variable "network" {
+  type        = string
+  description = "The network for this instance."
+  nullable    = false
+}
+
+variable "ipv4_address" {
+  type        = string
+  description = "The IPv4 address for this instance."
+  nullable    = false
+}