Release Channels

Author: chrissng

autogen/cluster.tf

@@ -45,6 +45,16 @@ resource "google_container_cluster" "primary" {
     }
   }
 
+{% if beta_cluster %}
+  dynamic "release_channel" {
+    for_each = local.release_channel
+
+    content {
+      channel = release_channel.value.channel
+    }
+  }
+{% endif %}
+
   subnetwork         = data.google_compute_subnetwork.gke_subnetwork.self_link
   min_master_version = local.master_version
 

autogen/main.tf

@@ -48,6 +48,10 @@ locals {
   node_version_zonal      = var.node_version != "" && ! var.regional ? var.node_version : local.master_version_zonal
   master_version          = var.regional ? local.master_version_regional : local.master_version_zonal
   node_version            = var.regional ? local.node_version_regional : local.node_version_zonal
+{% if beta_cluster %}
+  release_channel         = var.enable_release_channel ? [{ channel : var.release_channel }] : []
+{% endif %}
+
 
   custom_kube_dns_config      = length(keys(var.stub_domains)) > 0
   upstream_nameservers_config = length(var.upstream_nameservers) > 0

autogen/outputs.tf

@@ -150,4 +150,13 @@ output "vertical_pod_autoscaling_enabled" {
   value       = local.cluster_vertical_pod_autoscaling_enabled
 }
 
+output "release_channel_enabled" {
+  description = "Whether release channel is enabled"
+  value       = var.enable_release_channel
+}
+
+output "release_channel" {
+  description = "The release channel of this cluster"
+  value       = var.release_channel
+}
 {% endif %}

autogen/variables.tf

@@ -411,4 +411,15 @@ variable "authenticator_security_group" {
   default     = null
 }
 
+variable "enable_release_channel" {
+  type        = bool
+  description = "(Beta) Whether release channel is configured for this cluster."
+  default     = false
+}
+
+variable "release_channel" {
+  type        = string
+  description = "(Beta) The release channel of this cluster. Accepted values are `UNSPECIFIED`, `RAPID`, `REGULAR` and `STABLE`. Defaults to `UNSPECIFIED`."
+  default     = "UNSPECIFIED"
+}
 {% endif %}