feature/tofu (#15)

@thomas.solbjor her er "import" av tofu fra ditt repo med justeringer for å tilpasse patterns her. Også minimalisert til å kun opprette cluster, ingen managed services som postgres etc. Ta en titt.

Co-authored-by: Danijel Simeunovic <danijel.simeunovic@fortedigital.com>
Reviewed-on: #15
Reviewed-by: Danijel Simeunovic <danijel.simeunovic@fortedigital.com>
Co-authored-by: Ghost <>
Co-committed-by: Ghost <>

.tofu/platforms/upc/modules/cluster/main.tf

@@ -0,0 +1,56 @@
+# Router for the private network
+resource "upcloud_router" "kubernetes" {
+  name = "${var.prefix}-${var.cluster_name}-router"
+}
+
+# Gateway for internet connectivity
+resource "upcloud_gateway" "kubernetes" {
+  name     = "${var.prefix}-${var.cluster_name}-gateway"
+  zone     = var.zone
+  features = ["nat"]
+  router {
+    id = upcloud_router.kubernetes.id
+  }
+}
+
+# Private network for the Kubernetes cluster
+resource "upcloud_network" "kubernetes" {
+  name   = "${var.prefix}-${var.cluster_name}-network"
+  zone   = var.zone
+  router = upcloud_router.kubernetes.id
+
+  ip_network {
+    address            = var.network_cidr
+    dhcp               = true
+    dhcp_default_route = true
+    family             = "IPv4"
+    gateway            = cidrhost(var.network_cidr, 1)
+  }
+
+  depends_on = [upcloud_gateway.kubernetes]
+}
+
+# Kubernetes cluster
+resource "upcloud_kubernetes_cluster" "main" {
+  name                    = "${var.prefix}-${var.cluster_name}"
+  zone                    = var.zone
+  network                 = upcloud_network.kubernetes.id
+  control_plane_ip_filter = var.control_plane_ip_filter
+
+  private_node_groups = true
+}
+
+# Node group for worker nodes
+resource "upcloud_kubernetes_node_group" "workers" {
+  cluster       = upcloud_kubernetes_cluster.main.id
+  name          = "${var.prefix}-${var.cluster_name}-workers"
+  node_count    = var.node_count
+  plan          = var.node_plan
+  anti_affinity = var.node_count > 1
+  labels = {
+    prefix  = var.prefix
+    cluster = var.cluster_name
+    role    = "worker"
+    env     = lookup(var.tags, "Environment", "dev")
+  }
+}

.tofu/platforms/upc/modules/cluster/outputs.tf

@@ -0,0 +1,31 @@
+# ─── Cluster ─────────────────────────────────────────────────────────
+
+output "cluster_id" {
+  description = "The ID of the Kubernetes cluster"
+  value       = upcloud_kubernetes_cluster.main.id
+}
+
+output "cluster_name" {
+  description = "The name of the Kubernetes cluster"
+  value       = upcloud_kubernetes_cluster.main.name
+}
+
+output "network_id" {
+  description = "The ID of the private network"
+  value       = upcloud_network.kubernetes.id
+}
+
+output "network_cidr" {
+  description = "The CIDR block of the private network"
+  value       = var.network_cidr
+}
+
+output "kubernetes_version" {
+  description = "The Kubernetes version of the cluster"
+  value       = upcloud_kubernetes_cluster.main.version
+}
+
+output "zone" {
+  description = "The zone where the cluster is deployed"
+  value       = var.zone
+}

.tofu/platforms/upc/modules/cluster/providers.tf

@@ -0,0 +1,8 @@
+terraform {
+  required_providers {
+    upcloud = {
+      source  = "UpCloudLtd/upcloud"
+      version = "~> 5.0"
+    }
+  }
+}

.tofu/platforms/upc/modules/cluster/variables.tf

@@ -0,0 +1,44 @@
+# ─── Cluster ─────────────────────────────────────────────────────────
+
+variable "prefix" {
+  description = "Prefix for resource names"
+  type        = string
+}
+
+variable "cluster_name" {
+  description = "Name of the Kubernetes cluster"
+  type        = string
+  default     = "main"
+}
+
+variable "zone" {
+  description = "UpCloud zone"
+  type        = string
+}
+
+variable "node_plan" {
+  description = "UpCloud server plan for worker nodes"
+  type        = string
+}
+
+variable "node_count" {
+  description = "Number of worker nodes"
+  type        = number
+}
+
+variable "network_cidr" {
+  description = "CIDR block for the private network"
+  type        = string
+  default     = "10.100.0.0/24"
+}
+
+variable "control_plane_ip_filter" {
+  description = "CIDRs allowed to access the K8s API"
+  type        = list(string)
+  default     = ["0.0.0.0/0"]
+}
+
+variable "tags" {
+  description = "Labels to apply to resources"
+  type        = map(string)
+}