Node pool locations selector (#54)

* node_locations * default * type * unspecified * null default * include note about manual reconcilation
FairwindsOps · May 4, 2023 · 1ff572a · 1ff572a
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diff --git a/node_pool/CHANGELOG.md b/node_pool/CHANGELOG.md
@@ -1,3 +1,6 @@
+# node-pool-v3.8.1
+- Added `node_locations` parameter to limit a node pool to specific zones. Zones selected must be in the parent clusters region. If left empty nodes will default to their parent clusters zones. **Note: node_locations will not revert to the cluster's default set of zones upon being unset. You must manually reconcile the list of zones with your cluster.
+
 # node-pool-v3.8.0
 - Added the following values to ignore_changes on the node pool, since they aren't commonly configured but instead set by GKE: `initial_node_count`, `node_config.0.metadata` and `node_config.0.min_cpu_platform`
 

diff --git a/node_pool/inputs.tf b/node_pool/inputs.tf
@@ -22,6 +22,12 @@ variable "region" {
   description = "The region for the node pool."
 }
 
+variable "node_locations" {
+  type        = list
+  description = "The list of zones in which the node pool's nodes should be located. Nodes must be in the region of their regional cluster or in the same region as their cluster's zone for zonal clusters. If unspecified, the cluster-level node_locations will be used."
+  default     = null
+}
+
 variable "disk_size_in_gb" {
   description = "Disk size, in GB, for the nodes in the pool."
   default     = "100"

diff --git a/node_pool/main.tf b/node_pool/main.tf
@@ -47,6 +47,7 @@ resource "google_container_node_pool" "node_pool" {
   name               = "${var.name}-${random_id.entropy.hex}"
   cluster            = var.gke_cluster_name
   location           = var.region
+  node_locations     = var.node_locations
   version            = var.kubernetes_version
   initial_node_count = var.initial_node_count