diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54236093c2..ffaf0f3b55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,8 +14,13 @@ Extending the adopted spec, each change should have a link to its corresponding
 
 ### Added
 
+* Added support for resource usage export config [#238]
+* Added `sandbox_enabled` variable to use GKE Sandbox [#241]
+* Added `grant_registry_access` variable to grant Container Registry access to created SA [#236]
 * Support for Intranode Visbiility (IV) and Veritical Pod Autoscaling (VPA) beta features [#216]
 * Support for Workload Identity beta feature [#234]
+* Support for Google Groups based RBAC beta feature [#217]
+* Support for disabling node pool autoscaling by setting `autoscaling` to `false` within the node pool variable. [#250]
 
 ## [v4.1.0] 2019-07-24
 
@@ -174,6 +179,11 @@ Extending the adopted spec, each change should have a link to its corresponding
 [v0.2.0]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/compare/v0.1.0...v0.2.0
 
 [#228]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/228
+[#238]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/238
+[#241]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/241
+[#250]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/250
+[#236]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/236
+[#217]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/217
 [#234]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/234
 [#216]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/216
 [#214]: https://github.com/terraform-google-modules/terraform-google-kubernetes-engine/pull/214
diff --git a/README.md b/README.md
index ea1ef578ab..923d3f7a09 100644
--- a/README.md
+++ b/README.md
@@ -137,6 +137,7 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 | create\_service\_account | Defines if service account specified to run nodes should be created. | bool | `"true"` | no |
 | description | The description of the cluster | string | `""` | no |
 | disable\_legacy\_metadata\_endpoints | Disable the /0.1/ and /v1beta1/ metadata server endpoints on the node. Changing this value will cause all node pools to be recreated. | bool | `"true"` | no |
+| grant\_registry\_access | Grants created cluster-specific service account storage.objectViewer role. | bool | `"false"` | no |
 | horizontal\_pod\_autoscaling | Enable horizontal pod autoscaling addon | bool | `"true"` | no |
 | http\_load\_balancing | Enable httpload balancer addon | bool | `"true"` | no |
 | initial\_node\_count | The number of nodes to create in this cluster's default node pool. | number | `"0"` | no |
diff --git a/autogen/cluster.tf b/autogen/cluster.tf
index 1dd055dc11..9ae4414a18 100644
--- a/autogen/cluster.tf
+++ b/autogen/cluster.tf
@@ -67,6 +67,15 @@ resource "google_container_cluster" "primary" {
     }
   }
 
+  dynamic "resource_usage_export_config" {
+    for_each = var.resource_usage_export_dataset_id != "" ? [var.resource_usage_export_dataset_id] : []
+    content {
+      enable_network_egress_metering = true
+      bigquery_destination {
+        dataset_id = resource_usage_export_config.value
+      }
+    }
+  }
 {% endif %}
   dynamic "master_authorized_networks_config" {
     for_each = var.master_authorized_networks_config
@@ -158,6 +167,14 @@ resource "google_container_cluster" "primary" {
           node_metadata = workload_metadata_config.value.node_metadata
         }
       }
+
+      dynamic "sandbox_config" {
+        for_each = local.cluster_sandbox_enabled
+
+        content {
+          sandbox_type = sandbox_config.value
+        }
+      }
       {% endif %}
     }
   }
@@ -189,6 +206,13 @@ resource "google_container_cluster" "primary" {
       identity_namespace = workload_identity_config.value.identity_namespace
     }
   }
+
+  dynamic "authenticator_groups_config" {
+    for_each = local.cluster_authenticator_security_group
+    content {
+      security_group = authenticator_groups_config.value.security_group
+    }
+  }
 {% endif %}
 }
 
@@ -220,9 +244,14 @@ resource "google_container_node_pool" "pools" {
   max_pods_per_node = lookup(var.node_pools[count.index], "max_pods_per_node", null)
   {% endif %}
 
-  autoscaling {
-    min_node_count = lookup(var.node_pools[count.index], "min_count", 1)
-    max_node_count = lookup(var.node_pools[count.index], "max_count", 100)
+  node_count = lookup(var.node_pools[count.index], "autoscaling", true) ? null : lookup(var.node_pools[count.index], "min_count", 1)
+
+  dynamic "autoscaling" {
+    for_each = lookup(var.node_pools[count.index], "autoscaling", true) ? [var.node_pools[count.index]] : []
+    content {
+      min_node_count = lookup(autoscaling.value, "min_count", 1)
+      max_node_count = lookup(autoscaling.value, "max_count", 100)
+    }
   }
 
   management {
diff --git a/autogen/main.tf b/autogen/main.tf
index bb628b0980..c4b070f9a3 100644
--- a/autogen/main.tf
+++ b/autogen/main.tf
@@ -71,6 +71,12 @@ locals {
     node_metadata = var.node_metadata
   }]
 
+  cluster_authenticator_security_group = var.authenticator_security_group == null ? [] : [{
+    security_group = var.authenticator_security_group
+  }]
+
+  cluster_sandbox_enabled = var.sandbox_enabled ? ["gvisor"] : []
+
 {% endif %}
 
   cluster_output_name           = google_container_cluster.primary.name
diff --git a/autogen/sa.tf b/autogen/sa.tf
index c5f7f132a1..62b31f457a 100644
--- a/autogen/sa.tf
+++ b/autogen/sa.tf
@@ -61,3 +61,11 @@ resource "google_project_iam_member" "cluster_service_account-monitoring_viewer"
   role    = "roles/monitoring.viewer"
   member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
 }
+
+resource "google_project_iam_member" "cluster_service_account-gcr" {
+  count   = var.create_service_account && var.grant_registry_access ? 1 : 0
+  project = var.project_id
+  role    = "roles/storage.objectViewer"
+  member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
+}
+
diff --git a/autogen/variables.tf b/autogen/variables.tf
index d90210ef82..16c2955ced 100644
--- a/autogen/variables.tf
+++ b/autogen/variables.tf
@@ -263,6 +263,12 @@ variable "create_service_account" {
   default     = true
 }
 
+variable "grant_registry_access" {
+  type        = bool
+  description = "Grants created cluster-specific service account storage.objectViewer role."
+  default     = false
+}
+
 variable "service_account" {
   type        = string
   description = "The service account to run nodes as if not overridden in `node_pools`. The create_service_account variable default value (true) will cause a cluster-specific service account to be created."
@@ -362,18 +368,30 @@ variable "pod_security_policy_config" {
   }]
 }
 
+variable "resource_usage_export_dataset_id" {
+  type        = string
+  description = "The dataset id for which network egress metering for this cluster will be enabled. If enabled, a daemonset will be created in the cluster to meter network egress traffic."
+  default     = ""
+}
+
 variable "node_metadata" {
   description = "Specifies how node metadata is exposed to the workload running on the node"
   default     = "UNSPECIFIED"
 }
 
+variable "sandbox_enabled" {
+  type        = bool
+  description = "(Beta) Enable GKE Sandbox (Do not forget to set `image_type` = `COS_CONTAINERD` and `node_version` = `1.12.7-gke.17` or later to use it)."
+  default     = false
+}
+
 variable "enable_intranode_visibility" {
   type        = bool
   description = "Whether Intra-node visibility is enabled for this cluster. This makes same node pod to pod traffic visible for VPC network"
   default     = false
 }
 
- variable "enable_vertical_pod_autoscaling" {
+variable "enable_vertical_pod_autoscaling" {
   type        = bool
   description = "Vertical Pod Autoscaling automatically adjusts the resources of pods controlled by it"
   default     = false
@@ -385,5 +403,10 @@ variable "identity_namespace" {
   default     = ""
 }
 
+variable "authenticator_security_group" {
+  type        = string
+  description = "The name of the RBAC security group for use with Google security groups in Kubernetes RBAC. Group name must be in format gke-security-groups@yourdomain.com"
+  default     = null
+}
 
 {% endif %}
diff --git a/cluster.tf b/cluster.tf
index 7da3248f21..0f94ddb0e5 100644
--- a/cluster.tf
+++ b/cluster.tf
@@ -142,9 +142,14 @@ resource "google_container_node_pool" "pools" {
     lookup(var.node_pools[count.index], "min_count", 1),
   )
 
-  autoscaling {
-    min_node_count = lookup(var.node_pools[count.index], "min_count", 1)
-    max_node_count = lookup(var.node_pools[count.index], "max_count", 100)
+  node_count = lookup(var.node_pools[count.index], "autoscaling", true) ? null : lookup(var.node_pools[count.index], "min_count", 1)
+
+  dynamic "autoscaling" {
+    for_each = lookup(var.node_pools[count.index], "autoscaling", true) ? [var.node_pools[count.index]] : []
+    content {
+      min_node_count = lookup(autoscaling.value, "min_count", 1)
+      max_node_count = lookup(autoscaling.value, "max_count", 100)
+    }
   }
 
   management {
diff --git a/modules/beta-private-cluster/README.md b/modules/beta-private-cluster/README.md
index f2cd8c925a..74bd64c022 100644
--- a/modules/beta-private-cluster/README.md
+++ b/modules/beta-private-cluster/README.md
@@ -136,6 +136,7 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
+| authenticator\_security\_group | The name of the RBAC security group for use with Google security groups in Kubernetes RBAC. Group name must be in format gke-security-groups@yourdomain.com | string | `"null"` | no |
 | basic\_auth\_password | The password to be used with Basic Authentication. | string | `""` | no |
 | basic\_auth\_username | The username to be used with Basic Authentication. An empty value will disable Basic Authentication, which is the recommended configuration. | string | `""` | no |
 | cloudrun | (Beta) Enable CloudRun addon | string | `"false"` | no |
@@ -153,6 +154,7 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 | enable\_private\_endpoint | (Beta) Whether the master's internal IP address is used as the cluster endpoint | bool | `"false"` | no |
 | enable\_private\_nodes | (Beta) Whether nodes have internal IP addresses only | bool | `"false"` | no |
 | enable\_vertical\_pod\_autoscaling | Vertical Pod Autoscaling automatically adjusts the resources of pods controlled by it | bool | `"false"` | no |
+| grant\_registry\_access | Grants created cluster-specific service account storage.objectViewer role. | bool | `"false"` | no |
 | horizontal\_pod\_autoscaling | Enable horizontal pod autoscaling addon | bool | `"true"` | no |
 | http\_load\_balancing | Enable httpload balancer addon | bool | `"true"` | no |
 | identity\_namespace | Workload Identity namespace | string | `""` | no |
@@ -189,6 +191,8 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 | region | The region to host the cluster in (required) | string | n/a | yes |
 | regional | Whether is a regional cluster (zonal cluster if set false. WARNING: changing this after cluster creation is destructive!) | bool | `"true"` | no |
 | remove\_default\_node\_pool | Remove default node pool while setting up the cluster | bool | `"false"` | no |
+| resource\_usage\_export\_dataset\_id | The dataset id for which network egress metering for this cluster will be enabled. If enabled, a daemonset will be created in the cluster to meter network egress traffic. | string | `""` | no |
+| sandbox\_enabled | (Beta) Enable GKE Sandbox (Do not forget to set `image_type` = `COS_CONTAINERD` and `node_version` = `1.12.7-gke.17` or later to use it). | bool | `"false"` | no |
 | service\_account | The service account to run nodes as if not overridden in `node_pools`. The create_service_account variable default value (true) will cause a cluster-specific service account to be created. | string | `""` | no |
 | stub\_domains | Map of stub domains and their resolvers to forward DNS queries for a certain domain to an external DNS server | map(list(string)) | `<map>` | no |
 | subnetwork | The subnetwork to host the cluster in (required) | string | n/a | yes |
diff --git a/modules/beta-private-cluster/cluster.tf b/modules/beta-private-cluster/cluster.tf
index 4ccffeb4ec..901ae674eb 100644
--- a/modules/beta-private-cluster/cluster.tf
+++ b/modules/beta-private-cluster/cluster.tf
@@ -62,6 +62,15 @@ resource "google_container_cluster" "primary" {
     }
   }
 
+  dynamic "resource_usage_export_config" {
+    for_each = var.resource_usage_export_dataset_id != "" ? [var.resource_usage_export_dataset_id] : []
+    content {
+      enable_network_egress_metering = true
+      bigquery_destination {
+        dataset_id = resource_usage_export_config.value
+      }
+    }
+  }
   dynamic "master_authorized_networks_config" {
     for_each = var.master_authorized_networks_config
     content {
@@ -149,6 +158,14 @@ resource "google_container_cluster" "primary" {
           node_metadata = workload_metadata_config.value.node_metadata
         }
       }
+
+      dynamic "sandbox_config" {
+        for_each = local.cluster_sandbox_enabled
+
+        content {
+          sandbox_type = sandbox_config.value
+        }
+      }
     }
   }
 
@@ -176,6 +193,13 @@ resource "google_container_cluster" "primary" {
       identity_namespace = workload_identity_config.value.identity_namespace
     }
   }
+
+  dynamic "authenticator_groups_config" {
+    for_each = local.cluster_authenticator_security_group
+    content {
+      security_group = authenticator_groups_config.value.security_group
+    }
+  }
 }
 
 /******************************************
@@ -200,9 +224,14 @@ resource "google_container_node_pool" "pools" {
   )
   max_pods_per_node = lookup(var.node_pools[count.index], "max_pods_per_node", null)
 
-  autoscaling {
-    min_node_count = lookup(var.node_pools[count.index], "min_count", 1)
-    max_node_count = lookup(var.node_pools[count.index], "max_count", 100)
+  node_count = lookup(var.node_pools[count.index], "autoscaling", true) ? null : lookup(var.node_pools[count.index], "min_count", 1)
+
+  dynamic "autoscaling" {
+    for_each = lookup(var.node_pools[count.index], "autoscaling", true) ? [var.node_pools[count.index]] : []
+    content {
+      min_node_count = lookup(autoscaling.value, "min_count", 1)
+      max_node_count = lookup(autoscaling.value, "max_count", 100)
+    }
   }
 
   management {
diff --git a/modules/beta-private-cluster/main.tf b/modules/beta-private-cluster/main.tf
index 16da0d4ee9..ad6116e7ef 100644
--- a/modules/beta-private-cluster/main.tf
+++ b/modules/beta-private-cluster/main.tf
@@ -66,6 +66,12 @@ locals {
     node_metadata = var.node_metadata
   }]
 
+  cluster_authenticator_security_group = var.authenticator_security_group == null ? [] : [{
+    security_group = var.authenticator_security_group
+  }]
+
+  cluster_sandbox_enabled = var.sandbox_enabled ? ["gvisor"] : []
+
 
   cluster_output_name           = google_container_cluster.primary.name
   cluster_output_location       = google_container_cluster.primary.location
diff --git a/modules/beta-private-cluster/sa.tf b/modules/beta-private-cluster/sa.tf
index 0ebe86003d..9e063fcc22 100644
--- a/modules/beta-private-cluster/sa.tf
+++ b/modules/beta-private-cluster/sa.tf
@@ -61,3 +61,11 @@ resource "google_project_iam_member" "cluster_service_account-monitoring_viewer"
   role    = "roles/monitoring.viewer"
   member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
 }
+
+resource "google_project_iam_member" "cluster_service_account-gcr" {
+  count   = var.create_service_account && var.grant_registry_access ? 1 : 0
+  project = var.project_id
+  role    = "roles/storage.objectViewer"
+  member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
+}
+
diff --git a/modules/beta-private-cluster/variables.tf b/modules/beta-private-cluster/variables.tf
index cd8b420c1a..975fe7a173 100644
--- a/modules/beta-private-cluster/variables.tf
+++ b/modules/beta-private-cluster/variables.tf
@@ -261,6 +261,12 @@ variable "create_service_account" {
   default     = true
 }
 
+variable "grant_registry_access" {
+  type        = bool
+  description = "Grants created cluster-specific service account storage.objectViewer role."
+  default     = false
+}
+
 variable "service_account" {
   type        = string
   description = "The service account to run nodes as if not overridden in `node_pools`. The create_service_account variable default value (true) will cause a cluster-specific service account to be created."
@@ -357,11 +363,23 @@ variable "pod_security_policy_config" {
   }]
 }
 
+variable "resource_usage_export_dataset_id" {
+  type        = string
+  description = "The dataset id for which network egress metering for this cluster will be enabled. If enabled, a daemonset will be created in the cluster to meter network egress traffic."
+  default     = ""
+}
+
 variable "node_metadata" {
   description = "Specifies how node metadata is exposed to the workload running on the node"
   default     = "UNSPECIFIED"
 }
 
+variable "sandbox_enabled" {
+  type        = bool
+  description = "(Beta) Enable GKE Sandbox (Do not forget to set `image_type` = `COS_CONTAINERD` and `node_version` = `1.12.7-gke.17` or later to use it)."
+  default     = false
+}
+
 variable "enable_intranode_visibility" {
   type        = bool
   description = "Whether Intra-node visibility is enabled for this cluster. This makes same node pod to pod traffic visible for VPC network"
@@ -380,4 +398,9 @@ variable "identity_namespace" {
   default     = ""
 }
 
+variable "authenticator_security_group" {
+  type        = string
+  description = "The name of the RBAC security group for use with Google security groups in Kubernetes RBAC. Group name must be in format gke-security-groups@yourdomain.com"
+  default     = null
+}
 
diff --git a/modules/beta-public-cluster/README.md b/modules/beta-public-cluster/README.md
index 7240337192..316f46d43e 100644
--- a/modules/beta-public-cluster/README.md
+++ b/modules/beta-public-cluster/README.md
@@ -131,6 +131,7 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
+| authenticator\_security\_group | The name of the RBAC security group for use with Google security groups in Kubernetes RBAC. Group name must be in format gke-security-groups@yourdomain.com | string | `"null"` | no |
 | basic\_auth\_password | The password to be used with Basic Authentication. | string | `""` | no |
 | basic\_auth\_username | The username to be used with Basic Authentication. An empty value will disable Basic Authentication, which is the recommended configuration. | string | `""` | no |
 | cloudrun | (Beta) Enable CloudRun addon | string | `"false"` | no |
@@ -145,6 +146,7 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 | enable\_binary\_authorization | Enable BinAuthZ Admission controller | string | `"false"` | no |
 | enable\_intranode\_visibility | Whether Intra-node visibility is enabled for this cluster. This makes same node pod to pod traffic visible for VPC network | bool | `"false"` | no |
 | enable\_vertical\_pod\_autoscaling | Vertical Pod Autoscaling automatically adjusts the resources of pods controlled by it | bool | `"false"` | no |
+| grant\_registry\_access | Grants created cluster-specific service account storage.objectViewer role. | bool | `"false"` | no |
 | horizontal\_pod\_autoscaling | Enable horizontal pod autoscaling addon | bool | `"true"` | no |
 | http\_load\_balancing | Enable httpload balancer addon | bool | `"true"` | no |
 | identity\_namespace | Workload Identity namespace | string | `""` | no |
@@ -180,6 +182,8 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 | region | The region to host the cluster in (required) | string | n/a | yes |
 | regional | Whether is a regional cluster (zonal cluster if set false. WARNING: changing this after cluster creation is destructive!) | bool | `"true"` | no |
 | remove\_default\_node\_pool | Remove default node pool while setting up the cluster | bool | `"false"` | no |
+| resource\_usage\_export\_dataset\_id | The dataset id for which network egress metering for this cluster will be enabled. If enabled, a daemonset will be created in the cluster to meter network egress traffic. | string | `""` | no |
+| sandbox\_enabled | (Beta) Enable GKE Sandbox (Do not forget to set `image_type` = `COS_CONTAINERD` and `node_version` = `1.12.7-gke.17` or later to use it). | bool | `"false"` | no |
 | service\_account | The service account to run nodes as if not overridden in `node_pools`. The create_service_account variable default value (true) will cause a cluster-specific service account to be created. | string | `""` | no |
 | stub\_domains | Map of stub domains and their resolvers to forward DNS queries for a certain domain to an external DNS server | map(list(string)) | `<map>` | no |
 | subnetwork | The subnetwork to host the cluster in (required) | string | n/a | yes |
diff --git a/modules/beta-public-cluster/cluster.tf b/modules/beta-public-cluster/cluster.tf
index 802bcd25e9..1c8561344a 100644
--- a/modules/beta-public-cluster/cluster.tf
+++ b/modules/beta-public-cluster/cluster.tf
@@ -62,6 +62,15 @@ resource "google_container_cluster" "primary" {
     }
   }
 
+  dynamic "resource_usage_export_config" {
+    for_each = var.resource_usage_export_dataset_id != "" ? [var.resource_usage_export_dataset_id] : []
+    content {
+      enable_network_egress_metering = true
+      bigquery_destination {
+        dataset_id = resource_usage_export_config.value
+      }
+    }
+  }
   dynamic "master_authorized_networks_config" {
     for_each = var.master_authorized_networks_config
     content {
@@ -149,6 +158,14 @@ resource "google_container_cluster" "primary" {
           node_metadata = workload_metadata_config.value.node_metadata
         }
       }
+
+      dynamic "sandbox_config" {
+        for_each = local.cluster_sandbox_enabled
+
+        content {
+          sandbox_type = sandbox_config.value
+        }
+      }
     }
   }
 
@@ -171,6 +188,13 @@ resource "google_container_cluster" "primary" {
       identity_namespace = workload_identity_config.value.identity_namespace
     }
   }
+
+  dynamic "authenticator_groups_config" {
+    for_each = local.cluster_authenticator_security_group
+    content {
+      security_group = authenticator_groups_config.value.security_group
+    }
+  }
 }
 
 /******************************************
@@ -195,9 +219,14 @@ resource "google_container_node_pool" "pools" {
   )
   max_pods_per_node = lookup(var.node_pools[count.index], "max_pods_per_node", null)
 
-  autoscaling {
-    min_node_count = lookup(var.node_pools[count.index], "min_count", 1)
-    max_node_count = lookup(var.node_pools[count.index], "max_count", 100)
+  node_count = lookup(var.node_pools[count.index], "autoscaling", true) ? null : lookup(var.node_pools[count.index], "min_count", 1)
+
+  dynamic "autoscaling" {
+    for_each = lookup(var.node_pools[count.index], "autoscaling", true) ? [var.node_pools[count.index]] : []
+    content {
+      min_node_count = lookup(autoscaling.value, "min_count", 1)
+      max_node_count = lookup(autoscaling.value, "max_count", 100)
+    }
   }
 
   management {
diff --git a/modules/beta-public-cluster/main.tf b/modules/beta-public-cluster/main.tf
index f99d4d9056..c956463414 100644
--- a/modules/beta-public-cluster/main.tf
+++ b/modules/beta-public-cluster/main.tf
@@ -66,6 +66,12 @@ locals {
     node_metadata = var.node_metadata
   }]
 
+  cluster_authenticator_security_group = var.authenticator_security_group == null ? [] : [{
+    security_group = var.authenticator_security_group
+  }]
+
+  cluster_sandbox_enabled = var.sandbox_enabled ? ["gvisor"] : []
+
 
   cluster_output_name           = google_container_cluster.primary.name
   cluster_output_location       = google_container_cluster.primary.location
diff --git a/modules/beta-public-cluster/sa.tf b/modules/beta-public-cluster/sa.tf
index 0ebe86003d..9e063fcc22 100644
--- a/modules/beta-public-cluster/sa.tf
+++ b/modules/beta-public-cluster/sa.tf
@@ -61,3 +61,11 @@ resource "google_project_iam_member" "cluster_service_account-monitoring_viewer"
   role    = "roles/monitoring.viewer"
   member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
 }
+
+resource "google_project_iam_member" "cluster_service_account-gcr" {
+  count   = var.create_service_account && var.grant_registry_access ? 1 : 0
+  project = var.project_id
+  role    = "roles/storage.objectViewer"
+  member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
+}
+
diff --git a/modules/beta-public-cluster/variables.tf b/modules/beta-public-cluster/variables.tf
index 8699854665..850f38ea83 100644
--- a/modules/beta-public-cluster/variables.tf
+++ b/modules/beta-public-cluster/variables.tf
@@ -261,6 +261,12 @@ variable "create_service_account" {
   default     = true
 }
 
+variable "grant_registry_access" {
+  type        = bool
+  description = "Grants created cluster-specific service account storage.objectViewer role."
+  default     = false
+}
+
 variable "service_account" {
   type        = string
   description = "The service account to run nodes as if not overridden in `node_pools`. The create_service_account variable default value (true) will cause a cluster-specific service account to be created."
@@ -333,11 +339,23 @@ variable "pod_security_policy_config" {
   }]
 }
 
+variable "resource_usage_export_dataset_id" {
+  type        = string
+  description = "The dataset id for which network egress metering for this cluster will be enabled. If enabled, a daemonset will be created in the cluster to meter network egress traffic."
+  default     = ""
+}
+
 variable "node_metadata" {
   description = "Specifies how node metadata is exposed to the workload running on the node"
   default     = "UNSPECIFIED"
 }
 
+variable "sandbox_enabled" {
+  type        = bool
+  description = "(Beta) Enable GKE Sandbox (Do not forget to set `image_type` = `COS_CONTAINERD` and `node_version` = `1.12.7-gke.17` or later to use it)."
+  default     = false
+}
+
 variable "enable_intranode_visibility" {
   type        = bool
   description = "Whether Intra-node visibility is enabled for this cluster. This makes same node pod to pod traffic visible for VPC network"
@@ -356,4 +374,9 @@ variable "identity_namespace" {
   default     = ""
 }
 
+variable "authenticator_security_group" {
+  type        = string
+  description = "The name of the RBAC security group for use with Google security groups in Kubernetes RBAC. Group name must be in format gke-security-groups@yourdomain.com"
+  default     = null
+}
 
diff --git a/modules/private-cluster/README.md b/modules/private-cluster/README.md
index 10ffe18910..c29d58ee93 100644
--- a/modules/private-cluster/README.md
+++ b/modules/private-cluster/README.md
@@ -145,6 +145,7 @@ In either case, upgrading to module version `v1.0.0` will trigger a recreation o
 | disable\_legacy\_metadata\_endpoints | Disable the /0.1/ and /v1beta1/ metadata server endpoints on the node. Changing this value will cause all node pools to be recreated. | bool | `"true"` | no |
 | enable\_private\_endpoint | (Beta) Whether the master's internal IP address is used as the cluster endpoint | bool | `"false"` | no |
 | enable\_private\_nodes | (Beta) Whether nodes have internal IP addresses only | bool | `"false"` | no |
+| grant\_registry\_access | Grants created cluster-specific service account storage.objectViewer role. | bool | `"false"` | no |
 | horizontal\_pod\_autoscaling | Enable horizontal pod autoscaling addon | bool | `"true"` | no |
 | http\_load\_balancing | Enable httpload balancer addon | bool | `"true"` | no |
 | initial\_node\_count | The number of nodes to create in this cluster's default node pool. | number | `"0"` | no |
diff --git a/modules/private-cluster/cluster.tf b/modules/private-cluster/cluster.tf
index d6af244b8a..a5bb5da979 100644
--- a/modules/private-cluster/cluster.tf
+++ b/modules/private-cluster/cluster.tf
@@ -147,9 +147,14 @@ resource "google_container_node_pool" "pools" {
     lookup(var.node_pools[count.index], "min_count", 1),
   )
 
-  autoscaling {
-    min_node_count = lookup(var.node_pools[count.index], "min_count", 1)
-    max_node_count = lookup(var.node_pools[count.index], "max_count", 100)
+  node_count = lookup(var.node_pools[count.index], "autoscaling", true) ? null : lookup(var.node_pools[count.index], "min_count", 1)
+
+  dynamic "autoscaling" {
+    for_each = lookup(var.node_pools[count.index], "autoscaling", true) ? [var.node_pools[count.index]] : []
+    content {
+      min_node_count = lookup(autoscaling.value, "min_count", 1)
+      max_node_count = lookup(autoscaling.value, "max_count", 100)
+    }
   }
 
   management {
diff --git a/modules/private-cluster/sa.tf b/modules/private-cluster/sa.tf
index 0ebe86003d..9e063fcc22 100644
--- a/modules/private-cluster/sa.tf
+++ b/modules/private-cluster/sa.tf
@@ -61,3 +61,11 @@ resource "google_project_iam_member" "cluster_service_account-monitoring_viewer"
   role    = "roles/monitoring.viewer"
   member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
 }
+
+resource "google_project_iam_member" "cluster_service_account-gcr" {
+  count   = var.create_service_account && var.grant_registry_access ? 1 : 0
+  project = var.project_id
+  role    = "roles/storage.objectViewer"
+  member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
+}
+
diff --git a/modules/private-cluster/variables.tf b/modules/private-cluster/variables.tf
index bad2d93ba3..8008e08975 100644
--- a/modules/private-cluster/variables.tf
+++ b/modules/private-cluster/variables.tf
@@ -251,6 +251,12 @@ variable "create_service_account" {
   default     = true
 }
 
+variable "grant_registry_access" {
+  type        = bool
+  description = "Grants created cluster-specific service account storage.objectViewer role."
+  default     = false
+}
+
 variable "service_account" {
   type        = string
   description = "The service account to run nodes as if not overridden in `node_pools`. The create_service_account variable default value (true) will cause a cluster-specific service account to be created."
diff --git a/sa.tf b/sa.tf
index 0ebe86003d..9e063fcc22 100644
--- a/sa.tf
+++ b/sa.tf
@@ -61,3 +61,11 @@ resource "google_project_iam_member" "cluster_service_account-monitoring_viewer"
   role    = "roles/monitoring.viewer"
   member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
 }
+
+resource "google_project_iam_member" "cluster_service_account-gcr" {
+  count   = var.create_service_account && var.grant_registry_access ? 1 : 0
+  project = var.project_id
+  role    = "roles/storage.objectViewer"
+  member  = "serviceAccount:${google_service_account.cluster_service_account[0].email}"
+}
+
diff --git a/test/make.sh b/test/make.sh
index e3937328c0..ec1cd6b01d 100755
--- a/test/make.sh
+++ b/test/make.sh
@@ -25,7 +25,8 @@ finish() {
 trap finish EXIT
 # Create a temporary file in the auto-cleaned up directory while avoiding
 # overwriting TMPDIR for other processes.
-# shellcheck disable=SC2120 # (Arguments may be passed, e.g. maketemp -d)
+# shellcheck disable=SC2120
+# (Arguments may be passed, e.g. maketemp -d)
 maketemp() {
   TMPDIR="${DELETE_AT_EXIT}" mktemp "$@"
 }
diff --git a/variables.tf b/variables.tf
index 4f7a18b26a..460bdeaeff 100644
--- a/variables.tf
+++ b/variables.tf
@@ -251,6 +251,12 @@ variable "create_service_account" {
   default     = true
 }
 
+variable "grant_registry_access" {
+  type        = bool
+  description = "Grants created cluster-specific service account storage.objectViewer role."
+  default     = false
+}
+
 variable "service_account" {
   type        = string
   description = "The service account to run nodes as if not overridden in `node_pools`. The create_service_account variable default value (true) will cause a cluster-specific service account to be created."