diff --git a/blueprints/gke/multitenant-fleet/README.md b/blueprints/gke/multitenant-fleet/README.md
index c263317b80..0818479b4b 100644
--- a/blueprints/gke/multitenant-fleet/README.md
+++ b/blueprints/gke/multitenant-fleet/README.md
@@ -247,9 +247,9 @@ module "gke" {
 |---|---|:---:|:---:|:---:|
 | [billing_account_id](variables.tf#L17) | Billing account id. | <code>string</code> | ✓ |  |
 | [folder_id](variables.tf#L132) | Folder used for the GKE project in folders/nnnnnnnnnnn format. | <code>string</code> | ✓ |  |
-| [prefix](variables.tf#L179) | Prefix used for resource names. | <code>string</code> | ✓ |  |
-| [project_id](variables.tf#L188) | ID of the project that will contain all the clusters. | <code>string</code> | ✓ |  |
-| [vpc_config](variables.tf#L200) | Shared VPC project and VPC details. | <code title="object&#40;&#123;&#10;  host_project_id &#61; string&#10;  vpc_self_link   &#61; string&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  |
+| [prefix](variables.tf#L183) | Prefix used for resource names. | <code>string</code> | ✓ |  |
+| [project_id](variables.tf#L192) | ID of the project that will contain all the clusters. | <code>string</code> | ✓ |  |
+| [vpc_config](variables.tf#L204) | Shared VPC project and VPC details. | <code title="object&#40;&#123;&#10;  host_project_id &#61; string&#10;  vpc_self_link   &#61; string&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  |
 | [clusters](variables.tf#L22) | Clusters configuration. Refer to the gke-cluster module for type details. | <code title="map&#40;object&#40;&#123;&#10;  cluster_autoscaling &#61; optional&#40;any&#41;&#10;  description         &#61; optional&#40;string&#41;&#10;  enable_addons &#61; optional&#40;any, &#123;&#10;    horizontal_pod_autoscaling &#61; true, http_load_balancing &#61; true&#10;  &#125;&#41;&#10;  enable_features &#61; optional&#40;any, &#123;&#10;    workload_identity &#61; true&#10;  &#125;&#41;&#10;  issue_client_certificate &#61; optional&#40;bool, false&#41;&#10;  labels                   &#61; optional&#40;map&#40;string&#41;&#41;&#10;  location                 &#61; string&#10;  logging_config           &#61; optional&#40;list&#40;string&#41;, &#91;&#34;SYSTEM_COMPONENTS&#34;&#93;&#41;&#10;  maintenance_config &#61; optional&#40;any, &#123;&#10;    daily_window_start_time &#61; &#34;03:00&#34;&#10;    recurring_window        &#61; null&#10;    maintenance_exclusion   &#61; &#91;&#93;&#10;  &#125;&#41;&#10;  max_pods_per_node  &#61; optional&#40;number, 110&#41;&#10;  min_master_version &#61; optional&#40;string&#41;&#10;  monitoring_config &#61; optional&#40;object&#40;&#123;&#10;    enable_components  &#61; optional&#40;list&#40;string&#41;, &#91;&#34;SYSTEM_COMPONENTS&#34;&#93;&#41;&#10;    managed_prometheus &#61; optional&#40;bool&#41;&#10;  &#125;&#41;&#41;&#10;  node_locations         &#61; optional&#40;list&#40;string&#41;&#41;&#10;  private_cluster_config &#61; optional&#40;any&#41;&#10;  release_channel        &#61; optional&#40;string&#41;&#10;  vpc_config &#61; object&#40;&#123;&#10;    subnetwork &#61; string&#10;    network    &#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; string&#10;      services &#61; string&#10;    &#125;&#41;, &#123; pods &#61; &#34;pods&#34;, services &#61; &#34;services&#34; &#125;&#41;&#10;    master_authorized_ranges &#61; optional&#40;map&#40;string&#41;&#41;&#10;    master_ipv4_cidr_block   &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#10;&#125;&#41;&#41;">map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |
 | [fleet_configmanagement_clusters](variables.tf#L70) | Config management features enabled on specific sets of member clusters, in config name => [cluster name] format. | <code>map&#40;list&#40;string&#41;&#41;</code> |  | <code>&#123;&#125;</code> |
 | [fleet_configmanagement_templates](variables.tf#L77) | Sets of config management configurations that can be applied to member clusters, in config name => {options} format. | <code title="map&#40;object&#40;&#123;&#10;  binauthz &#61; bool&#10;  config_sync &#61; object&#40;&#123;&#10;    git &#61; object&#40;&#123;&#10;      gcp_service_account_email &#61; string&#10;      https_proxy               &#61; string&#10;      policy_dir                &#61; string&#10;      secret_type               &#61; string&#10;      sync_branch               &#61; string&#10;      sync_repo                 &#61; string&#10;      sync_rev                  &#61; string&#10;      sync_wait_secs            &#61; number&#10;    &#125;&#41;&#10;    prevent_drift &#61; string&#10;    source_format &#61; string&#10;  &#125;&#41;&#10;  hierarchy_controller &#61; object&#40;&#123;&#10;    enable_hierarchical_resource_quota &#61; bool&#10;    enable_pod_tree_labels             &#61; bool&#10;  &#125;&#41;&#10;  policy_controller &#61; object&#40;&#123;&#10;    audit_interval_seconds     &#61; number&#10;    exemptable_namespaces      &#61; list&#40;string&#41;&#10;    log_denies_enabled         &#61; bool&#10;    referential_rules_enabled  &#61; bool&#10;    template_library_installed &#61; bool&#10;  &#125;&#41;&#10;  version &#61; string&#10;&#125;&#41;&#41;">map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |
@@ -258,8 +258,8 @@ module "gke" {
 | [group_iam](variables.tf#L137) | Project-level IAM bindings for groups. Use group emails as keys, list of roles as values. | <code>map&#40;list&#40;string&#41;&#41;</code> |  | <code>&#123;&#125;</code> |
 | [iam](variables.tf#L144) | Project-level authoritative IAM bindings for users and service accounts in  {ROLE => [MEMBERS]} format. | <code>map&#40;list&#40;string&#41;&#41;</code> |  | <code>&#123;&#125;</code> |
 | [labels](variables.tf#L151) | Project-level labels. | <code>map&#40;string&#41;</code> |  | <code>&#123;&#125;</code> |
-| [nodepools](variables.tf#L157) | Nodepools configuration. Refer to the gke-nodepool module for type details. | <code title="map&#40;map&#40;object&#40;&#123;&#10;  gke_version           &#61; optional&#40;string&#41;&#10;  labels                &#61; optional&#40;map&#40;string&#41;, &#123;&#125;&#41;&#10;  max_pods_per_node     &#61; optional&#40;number&#41;&#10;  name                  &#61; optional&#40;string&#41;&#10;  node_config           &#61; optional&#40;any, &#123; disk_type &#61; &#34;pd-balanced&#34; &#125;&#41;&#10;  node_count            &#61; optional&#40;map&#40;number&#41;, &#123; initial &#61; 1 &#125;&#41;&#10;  node_locations        &#61; optional&#40;list&#40;string&#41;&#41;&#10;  nodepool_config       &#61; optional&#40;any&#41;&#10;  pod_range             &#61; optional&#40;any&#41;&#10;  reservation_affinity  &#61; optional&#40;any&#41;&#10;  service_account       &#61; optional&#40;any&#41;&#10;  sole_tenant_nodegroup &#61; optional&#40;string&#41;&#10;  tags                  &#61; optional&#40;list&#40;string&#41;&#41;&#10;  taints                &#61; optional&#40;list&#40;any&#41;&#41;&#10;&#125;&#41;&#41;&#41;">map&#40;map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |
-| [project_services](variables.tf#L193) | Additional project services to enable. | <code>list&#40;string&#41;</code> |  | <code>&#91;&#93;</code> |
+| [nodepools](variables.tf#L157) | Nodepools configuration. Refer to the gke-nodepool module for type details. | <code title="map&#40;map&#40;object&#40;&#123;&#10;  gke_version           &#61; optional&#40;string&#41;&#10;  labels                &#61; optional&#40;map&#40;string&#41;, &#123;&#125;&#41;&#10;  max_pods_per_node     &#61; optional&#40;number&#41;&#10;  name                  &#61; optional&#40;string&#41;&#10;  node_config           &#61; optional&#40;any, &#123; disk_type &#61; &#34;pd-balanced&#34; &#125;&#41;&#10;  node_count            &#61; optional&#40;map&#40;number&#41;, &#123; initial &#61; 1 &#125;&#41;&#10;  node_locations        &#61; optional&#40;list&#40;string&#41;&#41;&#10;  nodepool_config       &#61; optional&#40;any&#41;&#10;  pod_range             &#61; optional&#40;any&#41;&#10;  reservation_affinity  &#61; optional&#40;any&#41;&#10;  service_account       &#61; optional&#40;any&#41;&#10;  sole_tenant_nodegroup &#61; optional&#40;string&#41;&#10;  tags                  &#61; optional&#40;list&#40;string&#41;&#41;&#10;  taints &#61; optional&#40;list&#40;object&#40;&#123;&#10;    key    &#61; string&#10;    value  &#61; string&#10;    effect &#61; string&#10;  &#125;&#41;&#41;&#41;&#10;&#125;&#41;&#41;&#41;">map&#40;map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |
+| [project_services](variables.tf#L197) | Additional project services to enable. | <code>list&#40;string&#41;</code> |  | <code>&#91;&#93;</code> |
 
 ## Outputs
 
diff --git a/blueprints/gke/multitenant-fleet/variables.tf b/blueprints/gke/multitenant-fleet/variables.tf
index 2cfd26a1bc..13760606e3 100644
--- a/blueprints/gke/multitenant-fleet/variables.tf
+++ b/blueprints/gke/multitenant-fleet/variables.tf
@@ -170,7 +170,11 @@ variable "nodepools" {
     service_account       = optional(any)
     sole_tenant_nodegroup = optional(string)
     tags                  = optional(list(string))
-    taints                = optional(list(any))
+    taints = optional(list(object({
+      key    = string
+      value  = string
+      effect = string
+    })))
   })))
   default  = {}
   nullable = false
diff --git a/fast/stages/3-gke-multitenant/dev/README.md b/fast/stages/3-gke-multitenant/dev/README.md
index 3cc4e33045..2152003a15 100644
--- a/fast/stages/3-gke-multitenant/dev/README.md
+++ b/fast/stages/3-gke-multitenant/dev/README.md
@@ -166,8 +166,8 @@ Leave all these variables unset (or set to `null`) to disable fleet management.
 | [billing_account](variables.tf#L29) | Billing account id. If billing account is not part of the same org set `is_org_level` to false. | <code title="object&#40;&#123;&#10;  id           &#61; string&#10;  is_org_level &#61; optional&#40;bool, true&#41;&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  | <code>0-bootstrap</code> |
 | [folder_ids](variables.tf#L153) | Folders to be used for the networking resources in folders/nnnnnnnnnnn format. If null, folder will be created. | <code title="object&#40;&#123;&#10;  gke-dev &#61; string&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  | <code>1-resman</code> |
 | [host_project_ids](variables.tf#L168) | Host project for the shared VPC. | <code title="object&#40;&#123;&#10;  dev-spoke-0 &#61; string&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  | <code>2-networking</code> |
-| [prefix](variables.tf#L217) | Prefix used for resources that need unique names. | <code>string</code> | ✓ |  |  |
-| [vpc_self_links](variables.tf#L233) | Self link for the shared VPC. | <code title="object&#40;&#123;&#10;  dev-spoke-0 &#61; string&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  | <code>2-networking</code> |
+| [prefix](variables.tf#L221) | Prefix used for resources that need unique names. | <code>string</code> | ✓ |  |  |
+| [vpc_self_links](variables.tf#L237) | Self link for the shared VPC. | <code title="object&#40;&#123;&#10;  dev-spoke-0 &#61; string&#10;&#125;&#41;">object&#40;&#123;&#8230;&#125;&#41;</code> | ✓ |  | <code>2-networking</code> |
 | [clusters](variables.tf#L42) | Clusters configuration. Refer to the gke-cluster module for type details. | <code title="map&#40;object&#40;&#123;&#10;  cluster_autoscaling &#61; optional&#40;any&#41;&#10;  description         &#61; optional&#40;string&#41;&#10;  enable_addons &#61; optional&#40;any, &#123;&#10;    horizontal_pod_autoscaling &#61; true, http_load_balancing &#61; true&#10;  &#125;&#41;&#10;  enable_features &#61; optional&#40;any, &#123;&#10;    workload_identity &#61; true&#10;  &#125;&#41;&#10;  issue_client_certificate &#61; optional&#40;bool, false&#41;&#10;  labels                   &#61; optional&#40;map&#40;string&#41;&#41;&#10;  location                 &#61; string&#10;  logging_config           &#61; optional&#40;list&#40;string&#41;, &#91;&#34;SYSTEM_COMPONENTS&#34;&#93;&#41;&#10;  maintenance_config &#61; optional&#40;any, &#123;&#10;    daily_window_start_time &#61; &#34;03:00&#34;&#10;    recurring_window        &#61; null&#10;    maintenance_exclusion   &#61; &#91;&#93;&#10;  &#125;&#41;&#10;  max_pods_per_node  &#61; optional&#40;number, 110&#41;&#10;  min_master_version &#61; optional&#40;string&#41;&#10;  monitoring_config &#61; optional&#40;object&#40;&#123;&#10;    enable_components  &#61; optional&#40;list&#40;string&#41;, &#91;&#34;SYSTEM_COMPONENTS&#34;&#93;&#41;&#10;    managed_prometheus &#61; optional&#40;bool&#41;&#10;  &#125;&#41;&#41;&#10;  node_locations         &#61; optional&#40;list&#40;string&#41;&#41;&#10;  private_cluster_config &#61; optional&#40;any&#41;&#10;  release_channel        &#61; optional&#40;string&#41;&#10;  vpc_config &#61; object&#40;&#123;&#10;    subnetwork &#61; string&#10;    network    &#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; string&#10;      services &#61; string&#10;    &#125;&#41;, &#123; pods &#61; &#34;pods&#34;, services &#61; &#34;services&#34; &#125;&#41;&#10;    master_authorized_ranges &#61; optional&#40;map&#40;string&#41;&#41;&#10;    master_ipv4_cidr_block   &#61; optional&#40;string&#41;&#10;  &#125;&#41;&#10;&#125;&#41;&#41;">map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |  |
 | [fleet_configmanagement_clusters](variables.tf#L90) | Config management features enabled on specific sets of member clusters, in config name => [cluster name] format. | <code>map&#40;list&#40;string&#41;&#41;</code> |  | <code>&#123;&#125;</code> |  |
 | [fleet_configmanagement_templates](variables.tf#L98) | Sets of config management configurations that can be applied to member clusters, in config name => {options} format. | <code title="map&#40;object&#40;&#123;&#10;  binauthz &#61; bool&#10;  config_sync &#61; object&#40;&#123;&#10;    git &#61; object&#40;&#123;&#10;      gcp_service_account_email &#61; string&#10;      https_proxy               &#61; string&#10;      policy_dir                &#61; string&#10;      secret_type               &#61; string&#10;      sync_branch               &#61; string&#10;      sync_repo                 &#61; string&#10;      sync_rev                  &#61; string&#10;      sync_wait_secs            &#61; number&#10;    &#125;&#41;&#10;    prevent_drift &#61; string&#10;    source_format &#61; string&#10;  &#125;&#41;&#10;  hierarchy_controller &#61; object&#40;&#123;&#10;    enable_hierarchical_resource_quota &#61; bool&#10;    enable_pod_tree_labels             &#61; bool&#10;  &#125;&#41;&#10;  policy_controller &#61; object&#40;&#123;&#10;    audit_interval_seconds     &#61; number&#10;    exemptable_namespaces      &#61; list&#40;string&#41;&#10;    log_denies_enabled         &#61; bool&#10;    referential_rules_enabled  &#61; bool&#10;    template_library_installed &#61; bool&#10;  &#125;&#41;&#10;  version &#61; string&#10;&#125;&#41;&#41;">map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |  |
@@ -176,9 +176,9 @@ Leave all these variables unset (or set to `null`) to disable fleet management.
 | [group_iam](variables.tf#L161) | Project-level authoritative IAM bindings for groups in {GROUP_EMAIL => [ROLES]} format. Use group emails as keys, list of roles as values. | <code>map&#40;list&#40;string&#41;&#41;</code> |  | <code>&#123;&#125;</code> |  |
 | [iam](variables.tf#L176) | Project-level authoritative IAM bindings for users and service accounts in  {ROLE => [MEMBERS]} format. | <code>map&#40;list&#40;string&#41;&#41;</code> |  | <code>&#123;&#125;</code> |  |
 | [labels](variables.tf#L183) | Project-level labels. | <code>map&#40;string&#41;</code> |  | <code>&#123;&#125;</code> |  |
-| [nodepools](variables.tf#L189) | Nodepools configuration. Refer to the gke-nodepool module for type details. | <code title="map&#40;map&#40;object&#40;&#123;&#10;  gke_version           &#61; optional&#40;string&#41;&#10;  labels                &#61; optional&#40;map&#40;string&#41;, &#123;&#125;&#41;&#10;  max_pods_per_node     &#61; optional&#40;number&#41;&#10;  name                  &#61; optional&#40;string&#41;&#10;  node_config           &#61; optional&#40;any, &#123; disk_type &#61; &#34;pd-balanced&#34; &#125;&#41;&#10;  node_count            &#61; optional&#40;map&#40;number&#41;, &#123; initial &#61; 1 &#125;&#41;&#10;  node_locations        &#61; optional&#40;list&#40;string&#41;&#41;&#10;  nodepool_config       &#61; optional&#40;any&#41;&#10;  pod_range             &#61; optional&#40;any&#41;&#10;  reservation_affinity  &#61; optional&#40;any&#41;&#10;  service_account       &#61; optional&#40;any&#41;&#10;  sole_tenant_nodegroup &#61; optional&#40;string&#41;&#10;  tags                  &#61; optional&#40;list&#40;string&#41;&#41;&#10;  taints                &#61; optional&#40;list&#40;any&#41;&#41;&#10;&#125;&#41;&#41;&#41;">map&#40;map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |  |
-| [outputs_location](variables.tf#L211) | Path where providers, tfvars files, and lists for the following stages are written. Leave empty to disable. | <code>string</code> |  | <code>null</code> |  |
-| [project_services](variables.tf#L226) | Additional project services to enable. | <code>list&#40;string&#41;</code> |  | <code>&#91;&#93;</code> |  |
+| [nodepools](variables.tf#L189) | Nodepools configuration. Refer to the gke-nodepool module for type details. | <code title="map&#40;map&#40;object&#40;&#123;&#10;  gke_version           &#61; optional&#40;string&#41;&#10;  labels                &#61; optional&#40;map&#40;string&#41;, &#123;&#125;&#41;&#10;  max_pods_per_node     &#61; optional&#40;number&#41;&#10;  name                  &#61; optional&#40;string&#41;&#10;  node_config           &#61; optional&#40;any, &#123; disk_type &#61; &#34;pd-balanced&#34; &#125;&#41;&#10;  node_count            &#61; optional&#40;map&#40;number&#41;, &#123; initial &#61; 1 &#125;&#41;&#10;  node_locations        &#61; optional&#40;list&#40;string&#41;&#41;&#10;  nodepool_config       &#61; optional&#40;any&#41;&#10;  pod_range             &#61; optional&#40;any&#41;&#10;  reservation_affinity  &#61; optional&#40;any&#41;&#10;  service_account       &#61; optional&#40;any&#41;&#10;  sole_tenant_nodegroup &#61; optional&#40;string&#41;&#10;  tags                  &#61; optional&#40;list&#40;string&#41;&#41;&#10;  taints &#61; optional&#40;list&#40;object&#40;&#123;&#10;    key    &#61; string&#10;    value  &#61; string&#10;    effect &#61; string&#10;  &#125;&#41;&#41;&#41;&#10;&#125;&#41;&#41;&#41;">map&#40;map&#40;object&#40;&#123;&#8230;&#125;&#41;&#41;&#41;</code> |  | <code>&#123;&#125;</code> |  |
+| [outputs_location](variables.tf#L215) | Path where providers, tfvars files, and lists for the following stages are written. Leave empty to disable. | <code>string</code> |  | <code>null</code> |  |
+| [project_services](variables.tf#L230) | Additional project services to enable. | <code>list&#40;string&#41;</code> |  | <code>&#91;&#93;</code> |  |
 
 ## Outputs
 
diff --git a/fast/stages/3-gke-multitenant/dev/variables.tf b/fast/stages/3-gke-multitenant/dev/variables.tf
index db532dd0eb..a872b49d18 100644
--- a/fast/stages/3-gke-multitenant/dev/variables.tf
+++ b/fast/stages/3-gke-multitenant/dev/variables.tf
@@ -202,7 +202,11 @@ variable "nodepools" {
     service_account       = optional(any)
     sole_tenant_nodegroup = optional(string)
     tags                  = optional(list(string))
-    taints                = optional(list(any))
+    taints = optional(list(object({
+      key    = string
+      value  = string
+      effect = string
+    })))
   })))
   default  = {}
   nullable = false