diff --git a/modules/gke-cluster-standard/README.md b/modules/gke-cluster-standard/README.md
index ef61ea47..acc8f551 100644
--- a/modules/gke-cluster-standard/README.md
+++ b/modules/gke-cluster-standard/README.md
@@ -3,7 +3,7 @@
 This module offers a way to create and manage Google Kubernetes Engine (GKE) [Standard clusters](https://cloud.google.com/kubernetes-engine/docs/concepts/choose-cluster-mode#why-standard). With its sensible default settings based on best practices and authors' experience as Google Cloud practitioners, the module accommodates for many common use cases out-of-the-box, without having to rely on verbose configuration.
 
 > [!IMPORTANT]
-> This module should be used together with the [`gke-nodepool`](../gke-nodepool/) module because the default node pool is deleted upon cluster creation and cannot be re-created.
+> This module should be used together with the [`gke-nodepool`](../gke-nodepool/) module because the default node pool is deleted upon cluster creation by default.
 
 <!-- BEGIN TOC -->
 - [Example](#example)
@@ -310,27 +310,28 @@ module "cluster-1" {
 
 | name | description | type | required | default |
 |---|---|:---:|:---:|:---:|
-| [location](variables.tf#L214) | Cluster zone or region. | <code>string</code> | ✓ |  |
-| [name](variables.tf#L349) | Cluster name. | <code>string</code> | ✓ |  |
-| [project_id](variables.tf#L385) | Cluster project id. | <code>string</code> | ✓ |  |
-| [vpc_config](variables.tf#L396) | VPC-level configuration. | <code title="object&#40;&#123;&#10;  network                &#61; string&#10;  subnetwork             &#61; string&#10;  master_ipv4_cidr_block &#61; optional&#40;string&#41;&#10;  secondary_range_blocks &#61; optional&#40;object&#40;&#123;&#10;    pods     &#61; string&#10;    services &#61; string&#10;  &#125;&#41;&#41;&#10;  secondary_range_names &#61; optional&#40;object&#40;&#123;&#10;    pods     &#61; optional&#40;string, &#34;pods&#34;&#41;&#10;    services &#61; optional&#40;string, &#34;services&#34;&#41;&#10;  &#125;&#41;&#41;&#10;  master_authorized_ranges &#61; optional&#40;map&#40;string&#41;&#41;&#10;  stack_type               &#61; optional&#40;string&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  |
+| [location](variables.tf#L229) | Cluster zone or region. | <code>string</code> | ✓ |  |
+| [name](variables.tf#L364) | Cluster name. | <code>string</code> | ✓ |  |
+| [project_id](variables.tf#L400) | Cluster project id. | <code>string</code> | ✓ |  |
+| [vpc_config](variables.tf#L411) | VPC-level configuration. | <code title="object&#40;&#123;&#10;  network                &#61; string&#10;  subnetwork             &#61; string&#10;  master_ipv4_cidr_block &#61; optional&#40;string&#41;&#10;  secondary_range_blocks &#61; optional&#40;object&#40;&#123;&#10;    pods     &#61; string&#10;    services &#61; string&#10;  &#125;&#41;&#41;&#10;  secondary_range_names &#61; optional&#40;object&#40;&#123;&#10;    pods     &#61; optional&#40;string, &#34;pods&#34;&#41;&#10;    services &#61; optional&#40;string, &#34;services&#34;&#41;&#10;  &#125;&#41;&#41;&#10;  master_authorized_ranges &#61; optional&#40;map&#40;string&#41;&#41;&#10;  stack_type               &#61; optional&#40;string&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  |
 | [backup_configs](variables.tf#L17) | Configuration for Backup for GKE. | <code title="object&#40;&#123;&#10;  enable_backup_agent &#61; optional&#40;bool, false&#41;&#10;  backup_plans &#61; optional&#40;map&#40;object&#40;&#123;&#10;    region                            &#61; string&#10;    applications                      &#61; optional&#40;map&#40;list&#40;string&#41;&#41;&#41;&#10;    encryption_key                    &#61; optional&#40;string&#41;&#10;    include_secrets                   &#61; optional&#40;bool, true&#41;&#10;    include_volume_data               &#61; optional&#40;bool, true&#41;&#10;    namespaces                        &#61; optional&#40;list&#40;string&#41;&#41;&#10;    schedule                          &#61; optional&#40;string&#41;&#10;    retention_policy_days             &#61; optional&#40;number&#41;&#10;    retention_policy_lock             &#61; optional&#40;bool, false&#41;&#10;    retention_policy_delete_lock_days &#61; optional&#40;number&#41;&#10;  &#125;&#41;&#41;, &#123;&#125;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
 | [cluster_autoscaling](variables.tf#L38) | Enable and configure limits for Node Auto-Provisioning with Cluster Autoscaler. | <code title="object&#40;&#123;&#10;  autoscaling_profile &#61; optional&#40;string, &#34;BALANCED&#34;&#41;&#10;  auto_provisioning_defaults &#61; optional&#40;object&#40;&#123;&#10;    boot_disk_kms_key &#61; optional&#40;string&#41;&#10;    disk_size         &#61; optional&#40;number&#41;&#10;    disk_type         &#61; optional&#40;string, &#34;pd-standard&#34;&#41;&#10;    image_type        &#61; optional&#40;string&#41;&#10;    oauth_scopes      &#61; optional&#40;list&#40;string&#41;&#41;&#10;    service_account   &#61; optional&#40;string&#41;&#10;    management &#61; optional&#40;object&#40;&#123;&#10;      auto_repair  &#61; optional&#40;bool, true&#41;&#10;      auto_upgrade &#61; optional&#40;bool, true&#41;&#10;    &#125;&#41;&#41;&#10;    shielded_instance_config &#61; optional&#40;object&#40;&#123;&#10;      integrity_monitoring &#61; optional&#40;bool, true&#41;&#10;      secure_boot          &#61; optional&#40;bool, false&#41;&#10;    &#125;&#41;&#41;&#10;    upgrade_settings &#61; optional&#40;object&#40;&#123;&#10;      blue_green &#61; optional&#40;object&#40;&#123;&#10;        node_pool_soak_duration &#61; optional&#40;string&#41;&#10;        standard_rollout_policy &#61; optional&#40;object&#40;&#123;&#10;          batch_percentage    &#61; optional&#40;number&#41;&#10;          batch_node_count    &#61; optional&#40;number&#41;&#10;          batch_soak_duration &#61; optional&#40;string&#41;&#10;        &#125;&#41;&#41;&#10;      &#125;&#41;&#41;&#10;      surge &#61; optional&#40;object&#40;&#123;&#10;        max         &#61; optional&#40;number&#41;&#10;        unavailable &#61; optional&#40;number&#41;&#10;      &#125;&#41;&#41;&#10;    &#125;&#41;&#41;&#10;  &#125;&#41;&#41;&#10;  cpu_limits &#61; optional&#40;object&#40;&#123;&#10;    min &#61; number&#10;    max &#61; number&#10;  &#125;&#41;&#41;&#10;  mem_limits &#61; optional&#40;object&#40;&#123;&#10;    min &#61; number&#10;    max &#61; number&#10;  &#125;&#41;&#41;&#10;  gpu_resources &#61; optional&#40;list&#40;object&#40;&#123;&#10;    resource_type &#61; string&#10;    min           &#61; number&#10;    max           &#61; number&#10;  &#125;&#41;&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>null</code> |
-| [deletion_protection](variables.tf#L116) | Whether or not to allow Terraform to destroy the cluster. Unless this field is set to false in Terraform state, a terraform destroy or terraform apply that would delete the cluster will fail. | <code>bool</code> |  | <code>true</code> |
-| [description](variables.tf#L123) | Cluster description. | <code>string</code> |  | <code>null</code> |
-| [enable_addons](variables.tf#L129) | Addons enabled in the cluster (true means enabled). | <code title="object&#40;&#123;&#10;  cloudrun                       &#61; optional&#40;bool, false&#41;&#10;  config_connector               &#61; optional&#40;bool, false&#41;&#10;  dns_cache                      &#61; optional&#40;bool, false&#41;&#10;  gce_persistent_disk_csi_driver &#61; optional&#40;bool, false&#41;&#10;  gcp_filestore_csi_driver       &#61; optional&#40;bool, false&#41;&#10;  gcs_fuse_csi_driver            &#61; optional&#40;bool, false&#41;&#10;  horizontal_pod_autoscaling     &#61; optional&#40;bool, false&#41;&#10;  http_load_balancing            &#61; optional&#40;bool, false&#41;&#10;  istio &#61; optional&#40;object&#40;&#123;&#10;    enable_tls &#61; bool&#10;  &#125;&#41;&#41;&#10;  kalm           &#61; optional&#40;bool, false&#41;&#10;  network_policy &#61; optional&#40;bool, false&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code title="&#123;&#10;  horizontal_pod_autoscaling &#61; true&#10;  http_load_balancing        &#61; true&#10;&#125;">&#123;&#8230;&#125;</code> |
-| [enable_features](variables.tf#L153) | Enable cluster-level features. Certain features allow configuration. | <code title="object&#40;&#123;&#10;  beta_apis            &#61; optional&#40;list&#40;string&#41;&#41;&#10;  binary_authorization &#61; optional&#40;bool, false&#41;&#10;  cost_management      &#61; optional&#40;bool, false&#41;&#10;  dns &#61; optional&#40;object&#40;&#123;&#10;    provider &#61; optional&#40;string&#41;&#10;    scope    &#61; optional&#40;string&#41;&#10;    domain   &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;  database_encryption &#61; optional&#40;object&#40;&#123;&#10;    state    &#61; string&#10;    key_name &#61; string&#10;  &#125;&#41;&#41;&#10;  dataplane_v2         &#61; optional&#40;bool, false&#41;&#10;  fqdn_network_policy  &#61; optional&#40;bool, false&#41;&#10;  gateway_api          &#61; optional&#40;bool, false&#41;&#10;  groups_for_rbac      &#61; optional&#40;string&#41;&#10;  image_streaming      &#61; optional&#40;bool, false&#41;&#10;  intranode_visibility &#61; optional&#40;bool, false&#41;&#10;  l4_ilb_subsetting    &#61; optional&#40;bool, false&#41;&#10;  mesh_certificates    &#61; optional&#40;bool&#41;&#10;  pod_security_policy  &#61; optional&#40;bool, false&#41;&#10;  resource_usage_export &#61; optional&#40;object&#40;&#123;&#10;    dataset                              &#61; string&#10;    enable_network_egress_metering       &#61; optional&#40;bool&#41;&#10;    enable_resource_consumption_metering &#61; optional&#40;bool&#41;&#10;  &#125;&#41;&#41;&#10;  service_external_ips &#61; optional&#40;bool, true&#41;&#10;  shielded_nodes       &#61; optional&#40;bool, false&#41;&#10;  tpu                  &#61; optional&#40;bool, false&#41;&#10;  upgrade_notifications &#61; optional&#40;object&#40;&#123;&#10;    topic_id &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;  vertical_pod_autoscaling &#61; optional&#40;bool, false&#41;&#10;  workload_identity        &#61; optional&#40;bool, true&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code title="&#123;&#10;  workload_identity &#61; true&#10;&#125;">&#123;&#8230;&#125;</code> |
-| [issue_client_certificate](variables.tf#L202) | Enable issuing client certificate. | <code>bool</code> |  | <code>false</code> |
-| [labels](variables.tf#L208) | Cluster resource labels. | <code>map&#40;string&#41;</code> |  | <code>null</code> |
-| [logging_config](variables.tf#L219) | Logging configuration. | <code title="object&#40;&#123;&#10;  enable_system_logs             &#61; optional&#40;bool, true&#41;&#10;  enable_workloads_logs          &#61; optional&#40;bool, false&#41;&#10;  enable_api_server_logs         &#61; optional&#40;bool, false&#41;&#10;  enable_scheduler_logs          &#61; optional&#40;bool, false&#41;&#10;  enable_controller_manager_logs &#61; optional&#40;bool, false&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
-| [maintenance_config](variables.tf#L240) | Maintenance window configuration. | <code title="object&#40;&#123;&#10;  daily_window_start_time &#61; optional&#40;string&#41;&#10;  recurring_window &#61; optional&#40;object&#40;&#123;&#10;    start_time &#61; string&#10;    end_time   &#61; string&#10;    recurrence &#61; string&#10;  &#125;&#41;&#41;&#10;  maintenance_exclusions &#61; optional&#40;list&#40;object&#40;&#123;&#10;    name       &#61; string&#10;    start_time &#61; string&#10;    end_time   &#61; string&#10;    scope      &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code title="&#123;&#10;  daily_window_start_time &#61; &#34;03:00&#34;&#10;  recurring_window        &#61; null&#10;  maintenance_exclusion   &#61; &#91;&#93;&#10;&#125;">&#123;&#8230;&#125;</code> |
-| [max_pods_per_node](variables.tf#L263) | Maximum number of pods per node in this cluster. | <code>number</code> |  | <code>110</code> |
-| [min_master_version](variables.tf#L269) | Minimum version of the master, defaults to the version of the most recent official release. | <code>string</code> |  | <code>null</code> |
-| [monitoring_config](variables.tf#L275) | Monitoring configuration. Google Cloud Managed Service for Prometheus is enabled by default. | <code title="object&#40;&#123;&#10;  enable_system_metrics &#61; optional&#40;bool, true&#41;&#10;  enable_api_server_metrics         &#61; optional&#40;bool, false&#41;&#10;  enable_controller_manager_metrics &#61; optional&#40;bool, false&#41;&#10;  enable_scheduler_metrics          &#61; optional&#40;bool, false&#41;&#10;  enable_daemonset_metrics   &#61; optional&#40;bool, false&#41;&#10;  enable_deployment_metrics  &#61; optional&#40;bool, false&#41;&#10;  enable_hpa_metrics         &#61; optional&#40;bool, false&#41;&#10;  enable_pod_metrics         &#61; optional&#40;bool, false&#41;&#10;  enable_statefulset_metrics &#61; optional&#40;bool, false&#41;&#10;  enable_storage_metrics     &#61; optional&#40;bool, false&#41;&#10;  enable_managed_prometheus &#61; optional&#40;bool, true&#41;&#10;  advanced_datapath_observability &#61; optional&#40;object&#40;&#123;&#10;    enable_metrics &#61; bool&#10;    enable_relay   &#61; optional&#40;bool&#41;&#10;    relay_mode     &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
-| [node_config](variables.tf#L354) | Node-level configuration. | <code title="object&#40;&#123;&#10;  boot_disk_kms_key &#61; optional&#40;string&#41;&#10;  service_account   &#61; optional&#40;string&#41;&#10;  tags              &#61; optional&#40;list&#40;string&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
-| [node_locations](variables.tf#L364) | Zones in which the cluster's nodes are located. | <code>list&#40;string&#41;</code> |  | <code>&#91;&#93;</code> |
-| [private_cluster_config](variables.tf#L371) | Private cluster configuration. | <code title="object&#40;&#123;&#10;  enable_private_endpoint &#61; optional&#40;bool&#41;&#10;  master_global_access    &#61; optional&#40;bool&#41;&#10;  peering_config &#61; optional&#40;object&#40;&#123;&#10;    export_routes &#61; optional&#40;bool&#41;&#10;    import_routes &#61; optional&#40;bool&#41;&#10;    project_id    &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>null</code> |
-| [release_channel](variables.tf#L390) | Release channel for GKE upgrades. | <code>string</code> |  | <code>null</code> |
+| [default_node_pool](variables.tf#L116) | Enable default node-pool. | <code title="object&#40;&#123;&#10;  remove_pool        &#61; optional&#40;bool, true&#41;&#10;  initial_node_count &#61; optional&#40;number&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
+| [deletion_protection](variables.tf#L131) | Whether or not to allow Terraform to destroy the cluster. Unless this field is set to false in Terraform state, a terraform destroy or terraform apply that would delete the cluster will fail. | <code>bool</code> |  | <code>true</code> |
+| [description](variables.tf#L138) | Cluster description. | <code>string</code> |  | <code>null</code> |
+| [enable_addons](variables.tf#L144) | Addons enabled in the cluster (true means enabled). | <code title="object&#40;&#123;&#10;  cloudrun                       &#61; optional&#40;bool, false&#41;&#10;  config_connector               &#61; optional&#40;bool, false&#41;&#10;  dns_cache                      &#61; optional&#40;bool, false&#41;&#10;  gce_persistent_disk_csi_driver &#61; optional&#40;bool, false&#41;&#10;  gcp_filestore_csi_driver       &#61; optional&#40;bool, false&#41;&#10;  gcs_fuse_csi_driver            &#61; optional&#40;bool, false&#41;&#10;  horizontal_pod_autoscaling     &#61; optional&#40;bool, false&#41;&#10;  http_load_balancing            &#61; optional&#40;bool, false&#41;&#10;  istio &#61; optional&#40;object&#40;&#123;&#10;    enable_tls &#61; bool&#10;  &#125;&#41;&#41;&#10;  kalm           &#61; optional&#40;bool, false&#41;&#10;  network_policy &#61; optional&#40;bool, false&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code title="&#123;&#10;  horizontal_pod_autoscaling &#61; true&#10;  http_load_balancing        &#61; true&#10;&#125;">&#123;&#8230;&#125;</code> |
+| [enable_features](variables.tf#L168) | Enable cluster-level features. Certain features allow configuration. | <code title="object&#40;&#123;&#10;  beta_apis            &#61; optional&#40;list&#40;string&#41;&#41;&#10;  binary_authorization &#61; optional&#40;bool, false&#41;&#10;  cost_management      &#61; optional&#40;bool, false&#41;&#10;  dns &#61; optional&#40;object&#40;&#123;&#10;    provider &#61; optional&#40;string&#41;&#10;    scope    &#61; optional&#40;string&#41;&#10;    domain   &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;  database_encryption &#61; optional&#40;object&#40;&#123;&#10;    state    &#61; string&#10;    key_name &#61; string&#10;  &#125;&#41;&#41;&#10;  dataplane_v2         &#61; optional&#40;bool, false&#41;&#10;  fqdn_network_policy  &#61; optional&#40;bool, false&#41;&#10;  gateway_api          &#61; optional&#40;bool, false&#41;&#10;  groups_for_rbac      &#61; optional&#40;string&#41;&#10;  image_streaming      &#61; optional&#40;bool, false&#41;&#10;  intranode_visibility &#61; optional&#40;bool, false&#41;&#10;  l4_ilb_subsetting    &#61; optional&#40;bool, false&#41;&#10;  mesh_certificates    &#61; optional&#40;bool&#41;&#10;  pod_security_policy  &#61; optional&#40;bool, false&#41;&#10;  resource_usage_export &#61; optional&#40;object&#40;&#123;&#10;    dataset                              &#61; string&#10;    enable_network_egress_metering       &#61; optional&#40;bool&#41;&#10;    enable_resource_consumption_metering &#61; optional&#40;bool&#41;&#10;  &#125;&#41;&#41;&#10;  service_external_ips &#61; optional&#40;bool, true&#41;&#10;  shielded_nodes       &#61; optional&#40;bool, false&#41;&#10;  tpu                  &#61; optional&#40;bool, false&#41;&#10;  upgrade_notifications &#61; optional&#40;object&#40;&#123;&#10;    topic_id &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;  vertical_pod_autoscaling &#61; optional&#40;bool, false&#41;&#10;  workload_identity        &#61; optional&#40;bool, true&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code title="&#123;&#10;  workload_identity &#61; true&#10;&#125;">&#123;&#8230;&#125;</code> |
+| [issue_client_certificate](variables.tf#L217) | Enable issuing client certificate. | <code>bool</code> |  | <code>false</code> |
+| [labels](variables.tf#L223) | Cluster resource labels. | <code>map&#40;string&#41;</code> |  | <code>null</code> |
+| [logging_config](variables.tf#L234) | Logging configuration. | <code title="object&#40;&#123;&#10;  enable_system_logs             &#61; optional&#40;bool, true&#41;&#10;  enable_workloads_logs          &#61; optional&#40;bool, false&#41;&#10;  enable_api_server_logs         &#61; optional&#40;bool, false&#41;&#10;  enable_scheduler_logs          &#61; optional&#40;bool, false&#41;&#10;  enable_controller_manager_logs &#61; optional&#40;bool, false&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
+| [maintenance_config](variables.tf#L255) | Maintenance window configuration. | <code title="object&#40;&#123;&#10;  daily_window_start_time &#61; optional&#40;string&#41;&#10;  recurring_window &#61; optional&#40;object&#40;&#123;&#10;    start_time &#61; string&#10;    end_time   &#61; string&#10;    recurrence &#61; string&#10;  &#125;&#41;&#41;&#10;  maintenance_exclusions &#61; optional&#40;list&#40;object&#40;&#123;&#10;    name       &#61; string&#10;    start_time &#61; string&#10;    end_time   &#61; string&#10;    scope      &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code title="&#123;&#10;  daily_window_start_time &#61; &#34;03:00&#34;&#10;  recurring_window        &#61; null&#10;  maintenance_exclusion   &#61; &#91;&#93;&#10;&#125;">&#123;&#8230;&#125;</code> |
+| [max_pods_per_node](variables.tf#L278) | Maximum number of pods per node in this cluster. | <code>number</code> |  | <code>110</code> |
+| [min_master_version](variables.tf#L284) | Minimum version of the master, defaults to the version of the most recent official release. | <code>string</code> |  | <code>null</code> |
+| [monitoring_config](variables.tf#L290) | Monitoring configuration. Google Cloud Managed Service for Prometheus is enabled by default. | <code title="object&#40;&#123;&#10;  enable_system_metrics &#61; optional&#40;bool, true&#41;&#10;  enable_api_server_metrics         &#61; optional&#40;bool, false&#41;&#10;  enable_controller_manager_metrics &#61; optional&#40;bool, false&#41;&#10;  enable_scheduler_metrics          &#61; optional&#40;bool, false&#41;&#10;  enable_daemonset_metrics   &#61; optional&#40;bool, false&#41;&#10;  enable_deployment_metrics  &#61; optional&#40;bool, false&#41;&#10;  enable_hpa_metrics         &#61; optional&#40;bool, false&#41;&#10;  enable_pod_metrics         &#61; optional&#40;bool, false&#41;&#10;  enable_statefulset_metrics &#61; optional&#40;bool, false&#41;&#10;  enable_storage_metrics     &#61; optional&#40;bool, false&#41;&#10;  enable_managed_prometheus &#61; optional&#40;bool, true&#41;&#10;  advanced_datapath_observability &#61; optional&#40;object&#40;&#123;&#10;    enable_metrics &#61; bool&#10;    enable_relay   &#61; optional&#40;bool&#41;&#10;    relay_mode     &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
+| [node_config](variables.tf#L369) | Node-level configuration. | <code title="object&#40;&#123;&#10;  boot_disk_kms_key &#61; optional&#40;string&#41;&#10;  service_account   &#61; optional&#40;string&#41;&#10;  tags              &#61; optional&#40;list&#40;string&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>&#123;&#125;</code> |
+| [node_locations](variables.tf#L379) | Zones in which the cluster's nodes are located. | <code>list&#40;string&#41;</code> |  | <code>&#91;&#93;</code> |
+| [private_cluster_config](variables.tf#L386) | Private cluster configuration. | <code title="object&#40;&#123;&#10;  enable_private_endpoint &#61; optional&#40;bool&#41;&#10;  master_global_access    &#61; optional&#40;bool&#41;&#10;  peering_config &#61; optional&#40;object&#40;&#123;&#10;    export_routes &#61; optional&#40;bool&#41;&#10;    import_routes &#61; optional&#40;bool&#41;&#10;    project_id    &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> |  | <code>null</code> |
+| [release_channel](variables.tf#L405) | Release channel for GKE upgrades. | <code>string</code> |  | <code>null</code> |
 
 ## Outputs
 
diff --git a/modules/gke-cluster-standard/main.tf b/modules/gke-cluster-standard/main.tf
index f0d2dcae..1b7fa414 100644
--- a/modules/gke-cluster-standard/main.tf
+++ b/modules/gke-cluster-standard/main.tf
@@ -39,8 +39,8 @@ resource "google_container_cluster" "cluster" {
   enable_shielded_nodes       = var.enable_features.shielded_nodes
   enable_fqdn_network_policy  = var.enable_features.fqdn_network_policy
   enable_tpu                  = var.enable_features.tpu
-  initial_node_count          = 1
-  remove_default_node_pool    = true
+  initial_node_count          = var.default_node_pool.initial_node_count
+  remove_default_node_pool    = var.default_node_pool.remove_pool
   deletion_protection         = var.deletion_protection
   datapath_provider = (
     var.enable_features.dataplane_v2
diff --git a/modules/gke-cluster-standard/variables.tf b/modules/gke-cluster-standard/variables.tf
index 7a65571a..122da653 100644
--- a/modules/gke-cluster-standard/variables.tf
+++ b/modules/gke-cluster-standard/variables.tf
@@ -113,6 +113,21 @@ variable "cluster_autoscaling" {
   }
 }
 
+variable "default_node_pool" {
+  description = "Enable default node-pool."
+  type = object({
+    remove_pool        = optional(bool, true)
+    initial_node_count = optional(number)
+  })
+  default  = {}
+  nullable = false
+
+  validation {
+    condition     = (var.default_node_pool.remove_pool != (var.default_node_pool.initial_node_count != null))
+    error_message = "If `remove_pool` is set to false, `initial_node_count` need be set."
+  }
+}
+
 variable "deletion_protection" {
   description = "Whether or not to allow Terraform to destroy the cluster. Unless this field is set to false in Terraform state, a terraform destroy or terraform apply that would delete the cluster will fail."
   type        = bool
diff --git a/tests/modules/gke_hub/examples/full.yaml b/tests/modules/gke_hub/examples/full.yaml
index 9572e071..d00571c1 100644
--- a/tests/modules/gke_hub/examples/full.yaml
+++ b/tests/modules/gke_hub/examples/full.yaml
@@ -59,7 +59,7 @@ values:
     enable_shielded_nodes: false
     enable_tpu: false
     fleet: []
-    initial_node_count: 1
+    initial_node_count: null
     location: europe-west1
     logging_config:
     - enable_components: