fix critical issue where nodes could be destroyed

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## 2.3.2 - 2023-08-30
+
+CRITICAL the version 2.2.0 - 2.3.1 could result in all nodes in the cluster being deleted in the case of changes to the userdata.
+
+### Changed
+- don't remove nodes when there are changes to userdata, key, availability zone, block_device
+
 ## 2.3.1 - 2023-08-26
 
 ### Changed

terraform/modules/rke1/nodes.tf

@@ -75,6 +75,15 @@ resource "openstack_compute_instance_v2" "machine" {
     node_options = lookup(local.node_options, each.value.role, "--worker")
     node_labels  = join(" ", [for l in each.value.labels : format("-l %s", replace(l, " ", "_"))])
   }))
+
+  lifecycle {
+    ignore_changes = [
+      key_pair,
+      block_device,
+      user_data,
+      availability_zone
+    ]
+  }
 }
 
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