Existing ssh keys at hetzner can now be used

Author: leonsteinhaeuser

servers.tf

@@ -3,7 +3,7 @@ resource "hcloud_server" "github_runner" {
   name        = format("%s-%s-%s-%d", "github-runner", var.hetzner_machine_os, random_uuid.hetzner_machine.result, count.index + 1)
   server_type = var.hetzner_machine_type
   image       = var.hetzner_machine_os
-  ssh_keys    = [hcloud_ssh_key.admin_ssh_key.id]
+  ssh_keys    = concat([hcloud_ssh_key.admin_ssh_key.id], var.additional_public_key_ids)
 
   connection {
     host        = self.ipv4_address

variables.tf

@@ -85,3 +85,9 @@ variable "github_authentication_token" {
     description = "Defines the authentication personal access token"
     type = string
 }
+
+variable additional_public_key_ids {
+    description = "Adds public keys to the server that are already registered at hetzner"
+    default = []
+    type = list(string)
+}