Removing multi-node config from terraform.

cl/machine-mynode.yaml.tmpl

@@ -1,18 +0,0 @@
----
-variant: flatcar
-version: 1.1.0
-passwd:
-  users:
-    - name: core
-      ssh_authorized_keys: ${ssh_keys}
-storage:
-  files:
-    - path: /home/core/works
-      mode: 0755
-      contents:
-        inline: |
-          #!/bin/bash
-          set -euo pipefail
-          # This script demonstrates how templating and variable substitution works when using Terraform templates for Container Linux Configs.
-          hostname="$(hostname)"
-          echo My name is ${name} and the hostname is $${hostname} and this is updated, again 5x!

flatcar/app/lb/Caddyfile

@@ -1,4 +1,4 @@
-mycluster-mynode.nassella.cc {
+wg-easy.nassella.cc {
   reverse_proxy http://wg-easy:80
 
   # tls internal

main.tf

@@ -28,11 +28,6 @@ variable "do_token" {
   type        = string
 }
 
-variable "machines" {
-  type        = list(string)
-  description = "Machine names, corresponding to machine-NAME.yaml.tmpl files"
-}
-
 variable "cluster_name" {
   type        = string
   description = "Cluster name used as prefix for the machine names"
@@ -99,24 +94,21 @@ resource "digitalocean_custom_image" "flatcar" {
 }
 
 resource "digitalocean_reserved_ip" "machine" {
-  for_each  = toset(var.machines)
+  region     = digitalocean_droplet.machine.region
-  region     = digitalocean_droplet.machine[each.key].region
 }
 
 resource "cloudflare_dns_record" "machine" {
-  for_each  = toset(var.machines)
   zone_id = var.cloudflare_zone_id
-  name    = "${var.cluster_name}-${each.key}"
+  name    = "wg-easy"
-  content   = digitalocean_reserved_ip.machine[each.key].ip_address
+  content   = digitalocean_reserved_ip.machine.ip_address
   type    = "A"
   proxied = false
   ttl = 300
 }
 
 resource "digitalocean_volume" "machine" {
-  for_each  = toset(var.machines)
   region    = var.datacenter
-  name      = "${var.cluster_name}-${each.key}"
+  name      = "${var.cluster_name}"
   size                    = 30
   initial_filesystem_type = "ext4"
   initial_filesystem_label = "appstorage"
@@ -124,57 +116,36 @@ resource "digitalocean_volume" "machine" {
 }
 
 resource "digitalocean_droplet" "machine" {
-  for_each  = toset(var.machines)
+  name      = "${var.cluster_name}"
-  name      = "${var.cluster_name}-${each.key}"
   image     = digitalocean_custom_image.flatcar.id
   region    = var.datacenter
   size      = var.server_type
   ssh_keys  = [digitalocean_ssh_key.first.fingerprint]
-  # user_data = data.ct_config.machine-ignitions[each.key].rendered
   user_data = file("flatcar/ignition.json")
   lifecycle {
     create_before_destroy = true
   }
 }
 
-resource "time_sleep" "wait_5_seconds" {
+resource "time_sleep" "wait_10_seconds" {
-  create_duration = "5s"
+  create_duration = "10s"
 }
 
 resource "digitalocean_reserved_ip_assignment" "machine" {
-  for_each  = toset(var.machines)
+  ip_address = digitalocean_reserved_ip.machine.ip_address
-  ip_address = digitalocean_reserved_ip.machine[each.key].ip_address
+  droplet_id = digitalocean_droplet.machine.id
-  droplet_id = digitalocean_droplet.machine[each.key].id
   # sometimes digital ocean throws an error for this resource
   # saying the droplet has a pending event so we delay a few seconds
-  depends_on = [time_sleep.wait_5_seconds]
+  depends_on = [time_sleep.wait_10_seconds]
 }
 
 resource "digitalocean_volume_attachment" "machine" {
-  for_each  = toset(var.machines)
+  droplet_id = digitalocean_droplet.machine.id
-  droplet_id = digitalocean_droplet.machine[each.key].id
+  volume_id  = digitalocean_volume.machine.id
-  volume_id  = digitalocean_volume.machine[each.key].id
 }
 
-# data "ct_config" "machine-ignitions" {
-#   for_each = toset(var.machines)
-#   content = templatefile("${path.module}/cl/machine-${each.key}.yaml.tmpl", {
-#     ssh_keys = jsonencode(var.ssh_keys),
-#     name = each.key
-#   })
-#   strict = true
-# }
-
-# output "ip-addresses" {
-#   value = {
-#     for key in var.machines :
-#     "${var.cluster_name}-${key}" => digitalocean_droplet.machine[key].ipv4_address
-#   }
-# }
-
 output "domain-mappings" {
   value = {
-    for key in var.machines :
+    "wg-easy.${var.domain}" = digitalocean_reserved_ip.machine.ip_address
-    "${var.cluster_name}-${key}.${var.domain}" => digitalocean_reserved_ip.machine[key].ip_address
   }
 }

template.tfvars

@@ -7,7 +7,6 @@ cloudflare_zone_id = ""
 cloudflare_account_id = ""
 
 cluster_name           = "mycluster"
-machines               = ["mynode"]
 datacenter             = "sfo3"
 ssh_keys               = [""] # paste contents of id_rsa.pub
 flatcar_stable_version = "4230.2.1"