refactor: replace null_resource with terraform_data (#69)

Closes #43 --------- Co-authored-by: simonhammes <[email protected]> Co-authored-by: Jonas L. <[email protected]>
hetznercloud · Dec 9, 2024 · 11cd7e2 · 11cd7e2
1 parent 40b22ed
commit 11cd7e2
Show file tree

Hide file tree

Showing 5 changed files with 77 additions and 121 deletions.
diff --git a/.terraform.lock.hcl b/.terraform.lock.hcl
diff --git a/example/.terraform.lock.hcl b/example/.terraform.lock.hcl
diff --git a/k3s_registry/main.tf b/k3s_registry/main.tf
@@ -20,8 +20,8 @@ variable "server" {
   })
 }
 
-resource "null_resource" "k3s_registry" {
-  triggers = {
+resource "terraform_data" "k3s_registry" {
+  triggers_replace = {
     id = var.server.id
   }
 

diff --git a/main-setup.tf b/main-setup.tf
@@ -16,10 +16,10 @@ module "registry_control" {
   private_key = tls_private_key.ssh.private_key_openssh
 }
 
-resource "null_resource" "k3sup_control" {
+resource "terraform_data" "k3sup_control" {
   depends_on = [module.registry_control]
 
-  triggers = {
+  triggers_replace = {
     id = hcloud_server.control.id
     ip = hcloud_server_network.control.ip
   }
@@ -64,18 +64,18 @@ module "registry_worker" {
   private_key = tls_private_key.ssh.private_key_openssh
 }
 
-resource "null_resource" "k3sup_worker" {
+resource "terraform_data" "k3sup_worker" {
   count = var.worker_count
 
   depends_on = [module.registry_worker]
 
-  triggers = {
+  triggers_replace = {
     id = hcloud_server.worker[count.index].id
     ip = hcloud_server_network.worker[count.index].ip
 
     # Wait the control-plane to be initialized, and re-join the new cluster if the
     # control-plane server changed.
-    control_id = null_resource.k3sup_control.id
+    control_id = terraform_data.k3sup_control.id
   }
 
   connection {
@@ -105,7 +105,7 @@ resource "null_resource" "k3sup_worker" {
 # Configure kubernetes
 
 data "local_sensitive_file" "kubeconfig" {
-  depends_on = [null_resource.k3sup_control]
+  depends_on = [terraform_data.k3sup_control]
   filename   = local.kubeconfig_path
 }
 

diff --git a/providers.tf b/providers.tf
@@ -4,10 +4,6 @@ terraform {
       source  = "hashicorp/local"
       version = ">= 2.5.1, < 3.0.0"
     }
-    null = {
-      source  = "hashicorp/null"
-      version = ">= 3.2.2, < 4.0.0"
-    }
     tls = {
       source  = "hashicorp/tls"
       version = ">= 4.0.5, < 5.0.0"