Add parameters for enabling GKE usage metering (#34)

Author: Luke Reed

vpc-native-beta/README.md

@@ -33,3 +33,5 @@ See the file [example-usage](./example-usage) for an example of how to use this
 | `enable_workload_identity`         | A boolean to enable workload identity               | `false`                                 |
 | `enable_shielded_nodes`            | A boolean to enable cluster-wide shielded nodes     | `false`                                 |
 | `enable_node_local_dns_cache`      | A boolean to enable NodeLocal DNSCache              | `true`                                  |
+| `metering_bigquery_dataset`        | BigQuery dataset name to send GKE metering data to. Setting a value here implicitly enables GKE Usage Metering. | `""`    |
+| `enable_network_egress_metering`   | Boolean to turn on Network Egress Metering. Only useful if metering_bigquery_dataset variable is set.           | `false` |

vpc-native-beta/inputs.tf

@@ -96,3 +96,15 @@ variable "enable_node_local_dns_cache" {
   description = "A boolean to enable NodeLocal DNSCache"
   default     = true
 }
+
+variable "metering_bigquery_dataset" {
+  type        = string
+  description = "BigQuery dataset name to send GKE metering data to. Setting a value here implicitly enables GKE Usage Metering."
+  default     = ""
+}
+
+variable "enable_network_egress_metering" {
+  type        = bool
+  description = "Boolean to turn on Network Egress Metering. Only useful if metering_bigquery_dataset variable is set."
+  default     = false
+}

vpc-native-beta/main.tf

@@ -1,5 +1,6 @@
 locals {
   cluster_workload_identity_namespace = var.enable_workload_identity ? ["${var.project}.svc.id.goog"] : []
+  metering_bigquery_dataset           = length(var.metering_bigquery_dataset) > 0 ? [var.metering_bigquery_dataset] : []
 }
 
 resource "google_container_cluster" "cluster" {
@@ -59,6 +60,16 @@ resource "google_container_cluster" "cluster" {
     }
   }
 
+  dynamic "resource_usage_export_config" {
+    for_each                             = local.metering_bigquery_dataset
+    content {
+      enable_network_egress_metering       = var.enable_network_egress_metering
+      bigquery_destination {
+        dataset_id = var.metering_bigquery_dataset
+      }
+    }
+  }
+
   network_policy {
     enabled = true
   }

vpc-native/README.md

@@ -32,3 +32,5 @@ See the file [example-usage](./example-usage) for an example of how to use this
 | `vpa_enabled`                      | A boolean to enable VPA for the cluster             | `false`                                 |
 | `enable_workload_identity`         | A boolean to enable workload identity               | `false`                                 |
 | `enable_shielded_nodes`            | A boolean to enable cluster-wide shielded nodes     | `false`                                 |
+| `metering_bigquery_dataset`        | BigQuery dataset name to send GKE metering data to. Setting a value here implicitly enables GKE Usage Metering. | `""`    |
+| `enable_network_egress_metering`   | Boolean to turn on Network Egress Metering. Only useful if metering_bigquery_dataset variable is set.           | `false` |

vpc-native/inputs.tf

@@ -90,3 +90,15 @@ variable "enable_shielded_nodes" {
   description = "A boolean to enable cluster-wide shielded nodes"
   default     = false
 }
+
+variable "metering_bigquery_dataset" {
+  type        = string
+  description = "BigQuery dataset name to send GKE metering data to. Setting a value here implicitly enables GKE Usage Metering."
+  default     = ""
+}
+
+variable "enable_network_egress_metering" {
+  type        = bool
+  description = "Boolean to turn on Network Egress Metering. Only useful if metering_bigquery_dataset variable is set."
+  default     = false
+}

vpc-native/main.tf

@@ -1,5 +1,6 @@
 locals {
   cluster_workload_identity_namespace = var.enable_workload_identity ? ["${var.project}.svc.id.goog"] : []
+  metering_bigquery_dataset           = length(var.metering_bigquery_dataset) > 0 ? [var.metering_bigquery_dataset] : []
 }
 
 resource "google_container_cluster" "cluster" {
@@ -55,6 +56,17 @@ resource "google_container_cluster" "cluster" {
     }
   }
 
+
+  dynamic "resource_usage_export_config" {
+    for_each                             = local.metering_bigquery_dataset
+    content {
+      enable_network_egress_metering       = var.enable_network_egress_metering
+      bigquery_destination {
+        dataset_id = var.metering_bigquery_dataset
+      }
+    }
+  }
+
   network_policy {
     enabled = true
   }