Remove the requirement of Helm, and use the K3s HelmChart CRD installation method instead

README.md

@@ -54,13 +54,12 @@ Follow those simple steps, and your world's cheapest Kube cluster will be up and
 
 First and foremost, you need to have a Hetzner Cloud account. You can sign up for free [here](https://hetzner.com/cloud/).
 
-Then you'll need to have [terraform](https://learn.hashicorp.com/tutorials/terraform/install-cli),  [kubectl](https://kubernetes.io/docs/tasks/tools/) cli, [helm](<https://github.com/helm/helm>) Helm and [hcloud](<https://github.com/hetznercloud/cli>) the Hetzner cli. The easiest way is to use the [homebrew](https://brew.sh/) package manager to install them (available on Linux, Mac, and Windows Linux Subsystem).
+Then you'll need to have [terraform](https://learn.hashicorp.com/tutorials/terraform/install-cli),  [kubectl](https://kubernetes.io/docs/tasks/tools/) cli and [hcloud](<https://github.com/hetznercloud/cli>) the Hetzner cli. The easiest way is to use the [homebrew](https://brew.sh/) package manager to install them (available on Linux, Mac, and Windows Linux Subsystem).
 
 ```sh
 brew install terraform
 brew install kubectl
 brew install hcloud
-brew install helm
 
 ```
 

helm/longhorn.yaml

@@ -1,22 +0,0 @@
----
-helmDefaults:
-  timeout: 3600
-  wait: true
-  force: false
-  atomic: true
-
-repositories:
-  - name: longhorn
-    url: https://charts.longhorn.io
-
-releases:
-  - name: longhorn
-    namespace: longhorn
-    chart: longhorn/longhorn
-    values:
-      - persistence:
-          defaultClass: {{ requiredEnv "HETZNER_CSI_DISABLED" }}
-          defaultFsType: ext4
-          defaultClassReplicaCount: 2
-      - defaultSettings:
-          defaultDataPath: /var/longhorn

init.tf

@@ -87,6 +87,7 @@ resource "null_resource" "kustomization" {
           "https://raw.githubusercontent.com/rancher/system-upgrade-controller/master/manifests/system-upgrade-controller.yaml",
         ],
         var.disable_hetzner_csi ? [] : ["https://raw.githubusercontent.com/hetznercloud/csi-driver/${local.csi_version}/deploy/kubernetes/hcloud-csi.yml"],
+        var.enable_longhorn ? ["longhorn.yaml"] : [],
         local.is_single_node_cluster ? [] : var.traefik_enabled ? ["traefik_config.yaml"] : [],
         var.cni_plugin == "calico" ? ["https://projectcalico.docs.tigera.io/manifests/calico.yaml"] : []
       ),
@@ -128,6 +129,16 @@ resource "null_resource" "kustomization" {
     destination = "/var/post_install/plans.yaml"
   }
 
+  # Upload the Longhorn config
+  provisioner "file" {
+    content = templatefile(
+      "${path.module}/templates/longhorn.yaml.tpl",
+      {
+        disable_hetzner_csi = var.disable_hetzner_csi
+    })
+    destination = "/var/post_install/longhorn.yaml"
+  }
+
   # Deploy secrets, logging is automatically disabled due to sensitive variables
   provisioner "remote-exec" {
     inline = [
@@ -171,24 +182,3 @@ resource "null_resource" "kustomization" {
     local_sensitive_file.kubeconfig
   ]
 }
-
-resource "null_resource" "longhorn" {
-  # If longhorn isn't enabled, we don't want any Helm resources
-  count = var.enable_longhorn ? 1 : 0
-
-  # Install Helm charts
-  provisioner "local-exec" {
-    when       = create
-    command    = <<-EOT
-      export KUBECONFIG=$(readlink -f ${path.module}/kubeconfig.yaml)
-      export HETZNER_CSI_DISABLED=${var.disable_hetzner_csi ? "true" : "false"}
-      helmfile -f ${path.module}/helm/longhorn.yaml apply
-    EOT
-    on_failure = continue
-  }
-
-  depends_on = [
-    null_resource.first_control_plane,
-    local_sensitive_file.kubeconfig
-  ]
-}

templates/longhorn.yaml.tpl

@@ -0,0 +1,22 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: longhorn
+---
+apiVersion: helm.cattle.io/v1
+kind: HelmChart
+metadata:
+  name: longhorn
+  namespace: kube-system
+spec:
+  chart: longhorn
+  repo: https://charts.longhorn.io
+  targetNamespace: longhorn
+  valuesContent: |-
+    defaultSettings:
+      defaultDataPath: /var/longhorn
+    persistence:
+      defaultFsType: ext4
+      defaultClassReplicaCount: 2
+      %{ if disable_hetzner_csi ~}defaultClass: true%{ else ~}defaultClass: false%{ endif ~}

templates/plans.yaml.tpl

@@ -47,4 +47,4 @@ spec:
   serviceAccountName: system-upgrade
   cordon: true
   upgrade:
-    image: rancher/k3s-upgrade
+    image: rancher/k3s-upgrade