fix(hetzner-linux): remove count from volume resource to prevent destruction.

Author: DevelopmentCats

registry/brymut/templates/hetzner-linux/README.md

@@ -9,6 +9,9 @@ tags: [vm, linux, hetzner]
 
 Provision Hetzner Cloud servers as [Coder workspaces](https://coder.com/docs/workspaces) with this example template.
 
+> [!IMPORTANT]
+> **Volume Management & Costs:** Hetzner Cloud volumes persist even when workspaces are stopped and will continue to incur storage costs (€0.0476/GB/month). Volumes are only automatically deleted when the workspace is completely deleted. Monitor your volumes in the [Hetzner Cloud Console](https://console.hetzner.cloud/) to manage costs effectively.
+
 ## Prerequisites
 
 To deploy workspaces as Hetzner Cloud servers, you'll need:

registry/brymut/templates/hetzner-linux/main.tf

@@ -79,7 +79,7 @@ resource "hcloud_server" "dev" {
   user_data = templatefile("cloud-config.yaml.tftpl", {
     username          = lower(data.coder_workspace_owner.me.name)
     home_volume_label = "coder-${data.coder_workspace.me.id}-home"
-    volume_id         = hcloud_volume.home_volume[count.index].id
+    volume_id         = hcloud_volume.home_volume.id
     init_script       = base64encode(coder_agent.main.init_script)
     coder_agent_token = coder_agent.main.token
   })
@@ -90,7 +90,6 @@ resource "hcloud_server" "dev" {
 }
 
 resource "hcloud_volume" "home_volume" {
-  count    = data.coder_workspace.me.start_count
   name     = "coder-${data.coder_workspace.me.id}-home"
   size     = data.coder_parameter.home_volume_size.value
   location = data.coder_parameter.hcloud_location.value
@@ -102,7 +101,7 @@ resource "hcloud_volume" "home_volume" {
 
 resource "hcloud_volume_attachment" "home_volume_attachment" {
   count     = data.coder_workspace.me.start_count
-  volume_id = hcloud_volume.home_volume[count.index].id
+  volume_id = hcloud_volume.home_volume.id
   server_id = hcloud_server.dev[count.index].id
   automount = false
 }