hetzner vms definition

main.tf

@@ -0,0 +1,4 @@
+
+terraform {
+  required_version = ">= 0.12"
+}

network.tf

@@ -0,0 +1,11 @@
+#resource "hcloud_network" "internal_network" {
+#  name = "internal_network"
+#  ip_range = "10.0.0.0/8"
+#}
+
+#resource "hcloud_network_subnet" "internal_network" {
+#  network_id = hcloud_network.internal_network.id
+#  type = "server"
+#  network_zone = "eu-central"
+#  ip_range   = "10.9.0.0/16"
+#}

outputs.tf

@@ -0,0 +1,15 @@
+output "hostvars" {
+  value = {
+    for hostname, host in var.vms: hostname =>
+      {
+        external_ip = hcloud_server.vms[hostname].ipv4_address
+        ansible_host = hcloud_server.vms[hostname].ipv4_address
+        #internal_ip = hcloud_server_network.vms[hostname].ip
+        volumes = {
+          for volumename, volume in lookup(host, "volumes", {}): volumename => merge(volume,{
+            device = hcloud_volume.volumes["${hostname}--${volumename}"].linux_device
+          })
+        }
+      }
+  }
+}

provider.tf

@@ -0,0 +1,3 @@
+provider "hcloud" {
+  token = var.token
+}

ssh.tf

@@ -0,0 +1,5 @@
+resource "hcloud_ssh_key" "ssh_keys" {
+  name = each.value
+  public_key = file(each.value)
+  for_each = var.ssh_keys_filenames
+}

variables.tf

@@ -0,0 +1,38 @@
+variable "vms" {
+  default = {
+    #"hostname.example.com" = {
+    #  provider = "hetzner"
+    #  groups = [ "testgroup" ]
+    #  volumes = {
+    #    data = { size = 32 }
+    #  }
+    #}
+  }
+}
+
+variable "token" {
+  type        = string
+  description = "Hetzner Cloud API-Token"
+}
+
+variable "default_location" {
+  type        = string
+  default = "nbg1"
+}
+
+variable "server_image" {
+  type        = string
+  default = "debian-10"
+}
+
+variable "default_server_type" {
+  type        = string
+  default = "cx11"
+}
+
+variable "ssh_keys_filenames" {
+  type        = set(string)
+  default = [
+    "~/.ssh/id_ed25519.pub",
+  ]
+}

vms.tf

@@ -0,0 +1,15 @@
+resource "hcloud_server" "vms" {
+  name = each.key
+  image = var.server_image
+  server_type = var.default_server_type
+  location = var.default_location
+  ssh_keys = [for value in hcloud_ssh_key.ssh_keys: value.id]
+
+  lifecycle {
+    ignore_changes = [
+      ssh_keys,
+    ]
+  }
+
+  for_each = var.vms
+}

volumes.tf

@@ -0,0 +1,28 @@
+locals {
+  volumes = { for item in flatten([
+    for hostname, host in var.vms: [
+      for volumename, volume in lookup(host, "volumes", {}): {
+        hostname = hostname
+        volumename = volumename
+        volume = volume
+        host = host
+      }
+    ]
+  ]): "${item.hostname}--${item.volumename}"  => merge(item.volume,{hostname=item.hostname}) }
+}
+
+resource "hcloud_volume" "volumes" {
+  name = each.key
+
+  location = var.default_location
+  size     = each.value.size
+
+  for_each = local.volumes
+}
+
+resource "hcloud_volume_attachment" "volume_attachments" {
+  volume_id = hcloud_volume.volumes[each.key].id
+  server_id = hcloud_server.vms[each.value.hostname].id
+  #automount = true
+  for_each = local.volumes
+}