Made cloud-init configs an input to libvirt-nodes.

main.tf

@@ -107,6 +107,7 @@ module "worker-nodes" {
 #   root-admin-passwd      = var.root-admin-passwd
 #   root-admin-pub-key     = var.root-admin-pub-key
 #   libvirt-connection-url = var.libvirt-connection-url
+#   user-datas             = data.template_file.master-node-user-datas
 # }
 # 
 # module "worker-nodes" {
@@ -120,6 +121,7 @@ module "worker-nodes" {
 #   root-admin-passwd      = var.root-admin-passwd
 #   root-admin-pub-key     = var.root-admin-pub-key
 #   libvirt-connection-url = var.libvirt-connection-url
+#   user-datas             = data.template_file.worker-node-user-datas
 # }
 # 
 # resource "libvirt_pool" "images" {

modules/libvirt-nodes/main.tf

@@ -20,23 +20,13 @@ resource "libvirt_volume" "node-images" {
   format = "qcow2"
 }
 
-data "template_file" "node-user-datas" {
-  template = file("${path.module}/cloud_init.cfg")
-  vars = {
-    admin-passwd  = "${var.root-admin-passwd}"
-    admin-pub-key = "${var.root-admin-pub-key}"
-    hostname      = "${var.name-prefix}-${count.index}"
-  }
-  count = var.num-nodes
-}
-
 data "template_file" "network-config" {
   template = file("${path.module}/network_config.cfg")
 }
 
 resource "libvirt_cloudinit_disk" "node-inits" {
   name           = "${var.name-prefix}-${count.index}-init"
-  user_data      = element(data.template_file.node-user-datas.*.rendered, count.index)
+  user_data      = element(var.user-datas.*.rendered, count.index)
   network_config = data.template_file.network-config.rendered
   pool           = var.pool-name
   count          = var.num-nodes

modules/libvirt-nodes/variables.tf

@@ -24,6 +24,10 @@ variable "node-vcpus" {
   type        = number
 }
 
+variable "user-datas" {
+  description = "A list of cloud-init configs that get applied to their corresponding node."
+}
+
 variable "num-nodes" {
   description = "The number of nodes to create with this config."
 }