From 8dff302284e5b45437ec1deab6fc60b51bd569db Mon Sep 17 00:00:00 2001
From: xorxsan <36991286+xorxsan@users.noreply.github.com>
Date: Mon, 7 Nov 2022 18:45:25 +0100
Subject: [PATCH] Pass extra configuration to launch template userdata (#11)

---
 data/userdata.tpl  | 2 ++
 launch-template.tf | 9 +++++----
 variables.tf       | 6 ++++++
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/data/userdata.tpl b/data/userdata.tpl
index 87206bc..10875ef 100644
--- a/data/userdata.tpl
+++ b/data/userdata.tpl
@@ -18,4 +18,6 @@ set -ex
     ${bootstrap_extra_args} \
     '${cluster_name}'
 
+${launch_template_custom_userdata}
+
 --//--
\ No newline at end of file
diff --git a/launch-template.tf b/launch-template.tf
index 400435b..86e982f 100644
--- a/launch-template.tf
+++ b/launch-template.tf
@@ -76,9 +76,10 @@ resource "aws_launch_template" "worker_nodes" {
   }
 
   user_data = base64encode(templatefile("${path.module}/data/userdata.tpl", {
-    cluster_name               = var.cluster_name
-    cluster_endpoint           = data.aws_eks_cluster.cluster.endpoint
-    certificate_authority_data = data.aws_eks_cluster.cluster.certificate_authority[0].data
-    bootstrap_extra_args       = local.bootstrap_extra_args
+    cluster_name                    = var.cluster_name
+    cluster_endpoint                = data.aws_eks_cluster.cluster.endpoint
+    certificate_authority_data      = data.aws_eks_cluster.cluster.certificate_authority[0].data
+    bootstrap_extra_args            = local.bootstrap_extra_args
+    launch_template_custom_userdata = var.launch_template_custom_userdata
   }))
 }
diff --git a/variables.tf b/variables.tf
index 6dc2aba..6b12d5b 100644
--- a/variables.tf
+++ b/variables.tf
@@ -91,3 +91,9 @@ variable "volume_type" {
   type    = string
   default = "gp3"
 }
+
+variable "launch_template_custom_userdata" {
+  type        = string
+  description = "Extra configuration executed after bootstraping the node"
+  default     = ""
+}