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Dojo Fork of Terraform Kubernetes Engine Module

Customisations

This repo is a fork of terraform-google-kubernetes-engine, the end goal should be to deprecate the need for this fork. At the moment we are tracking the following issues before that happens:

This repo is currently being consumed by Payments Platform for the provisioning of PCI and Non PCI GKE clusters.

Terraform Kubernetes Engine Module

This module handles opinionated Google Cloud Platform Kubernetes Engine cluster creation and configuration with Node Pools, IP MASQ, Network Policy, etc. The resources/services/activations/deletions that this module will create/trigger are:

  • Create a GKE cluster with the provided addons
  • Create GKE Node Pool(s) with provided configuration and attach to cluster
  • Replace the default kube-dns configmap if stub_domains are provided
  • Activate network policy if network_policy is true
  • Add ip-masq-agent configmap with provided non_masquerade_cidrs if configure_ip_masq is true

Sub modules are provided for creating private clusters, beta private clusters, and beta public clusters as well. Beta sub modules allow for the use of various GKE beta features. See the modules directory for the various sub modules.

Compatibility

This module is meant for use with Terraform 1.3+ and tested using Terraform 1.0+. If you find incompatibilities using Terraform >=1.3, please open an issue.

If you haven't upgraded to 1.3 and need a Terraform 0.13.x-compatible version of this module, the last released version intended for Terraform 0.13.x is [27.0.0].

If you haven't upgraded to 0.13 and need a Terraform 0.12.x-compatible version of this module, the last released version intended for Terraform 0.12.x is 12.3.0.

Usage

There are multiple examples included in the examples folder but simple usage is as follows:

# google_client_config and kubernetes provider must be explicitly specified like the following.
data "google_client_config" "default" {}

provider "kubernetes" {
  host                   = "https://${module.gke.endpoint}"
  token                  = data.google_client_config.default.access_token
  cluster_ca_certificate = base64decode(module.gke.ca_certificate)
}

module "gke" {
  source                     = "terraform-google-modules/kubernetes-engine/google"
  project_id                 = "<PROJECT ID>"
  name                       = "gke-test-1"
  region                     = "us-central1"
  zones                      = ["us-central1-a", "us-central1-b", "us-central1-f"]
  network                    = "vpc-01"
  subnetwork                 = "us-central1-01"
  ip_range_pods              = "us-central1-01-gke-01-pods"
  ip_range_services          = "us-central1-01-gke-01-services"
  http_load_balancing        = false
  network_policy             = false
  horizontal_pod_autoscaling = true
  filestore_csi_driver       = false

  node_pools = [
    {
      name                      = "default-node-pool"
      machine_type              = "e2-medium"
      node_locations            = "us-central1-b,us-central1-c"
      min_count                 = 1
      max_count                 = 100
      local_ssd_count           = 0
      spot                      = false
      disk_size_gb              = 100
      disk_type                 = "pd-standard"
      image_type                = "COS_CONTAINERD"
      enable_gcfs               = false
      enable_gvnic              = false
      logging_variant           = "DEFAULT"
      auto_repair               = true
      auto_upgrade              = true
      service_account           = "project-service-account@<PROJECT ID>.iam.gserviceaccount.com"
      preemptible               = false
      initial_node_count        = 80
    },
  ]

  node_pools_oauth_scopes = {
    all = [
      "https://www.googleapis.com/auth/logging.write",
      "https://www.googleapis.com/auth/monitoring",
    ]
  }

  node_pools_labels = {
    all = {}

    default-node-pool = {
      default-node-pool = true
    }
  }

  node_pools_metadata = {
    all = {}

    default-node-pool = {
      node-pool-metadata-custom-value = "my-node-pool"
    }
  }

  node_pools_taints = {
    all = []

    default-node-pool = [
      {
        key    = "default-node-pool"
        value  = true
        effect = "PREFER_NO_SCHEDULE"
      },
    ]
  }

  node_pools_tags = {
    all = []

    default-node-pool = [
      "default-node-pool",
    ]
  }
}

Then perform the following commands on the root folder:

  • terraform init to get the plugins
  • terraform plan to see the infrastructure plan
  • terraform apply to apply the infrastructure build
  • terraform destroy to destroy the built infrastructure

Inputs

Name Description Type Default Required
add_cluster_firewall_rules Create additional firewall rules bool false no
add_master_webhook_firewall_rules Create master_webhook firewall rules for ports defined in firewall_inbound_ports bool false no
add_shadow_firewall_rules Create GKE shadow firewall (the same as default firewall rules with firewall logs enabled). bool false no
additional_ip_range_pods List of names of the additional secondary subnet ip ranges to use for pods list(string) [] no
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 [email protected] string null no
cluster_autoscaling Cluster autoscaling configuration. See more details
object({
enabled = bool
min_cpu_cores = number
max_cpu_cores = number
min_memory_gb = number
max_memory_gb = number
gpu_resources = list(object({ resource_type = string, minimum = number, maximum = number }))
auto_repair = bool
auto_upgrade = bool
disk_size = optional(number)
disk_type = optional(string)
})
{
"auto_repair": true,
"auto_upgrade": true,
"disk_size": 100,
"disk_type": "pd-standard",
"enabled": false,
"gpu_resources": [],
"max_cpu_cores": 0,
"max_memory_gb": 0,
"min_cpu_cores": 0,
"min_memory_gb": 0
}
no
cluster_dns_domain The suffix used for all cluster service records. string "" no
cluster_dns_provider Which in-cluster DNS provider should be used. PROVIDER_UNSPECIFIED (default) or PLATFORM_DEFAULT or CLOUD_DNS. string "PROVIDER_UNSPECIFIED" no
cluster_dns_scope The scope of access to cluster DNS records. DNS_SCOPE_UNSPECIFIED (default) or CLUSTER_SCOPE or VPC_SCOPE. string "DNS_SCOPE_UNSPECIFIED" no
cluster_ipv4_cidr The IP address range of the kubernetes pods in this cluster. Default is an automatically assigned CIDR. string null no
cluster_resource_labels The GCE resource labels (a map of key/value pairs) to be applied to the cluster map(string) {} no
config_connector Whether ConfigConnector is enabled for this cluster. bool false no
configure_ip_masq Enables the installation of ip masquerading, which is usually no longer required when using aliasied IP addresses. IP masquerading uses a kubectl call, so when you have a private cluster, you will need access to the API server. bool false no
create_service_account Defines if service account specified to run nodes should be created. bool true no
database_encryption Application-layer Secrets Encryption settings. The object format is {state = string, key_name = string}. Valid values of state are: "ENCRYPTED"; "DECRYPTED". key_name is the name of a CloudKMS key. list(object({ state = string, key_name = string }))
[
{
"key_name": "",
"state": "DECRYPTED"
}
]
no
datapath_provider The desired datapath provider for this cluster. By default, DATAPATH_PROVIDER_UNSPECIFIED enables the IPTables-based kube-proxy implementation. ADVANCED_DATAPATH enables Dataplane-V2 feature. string "DATAPATH_PROVIDER_UNSPECIFIED" no
default_max_pods_per_node The maximum number of pods to schedule per node number 110 no
deletion_protection Whether or not to allow Terraform to destroy the cluster. bool true no
description The description of the cluster string "" no
disable_default_snat Whether to disable the default SNAT to support the private use of public IP addresses bool false 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
dns_cache The status of the NodeLocal DNSCache addon. bool false no
enable_binary_authorization Enable BinAuthZ Admission controller bool false no
enable_cost_allocation Enables Cost Allocation Feature and the cluster name and namespace of your GKE workloads appear in the labels field of the billing export to BigQuery bool false no
enable_kubernetes_alpha Whether to enable Kubernetes Alpha features for this cluster. Note that when this option is enabled, the cluster cannot be upgraded and will be automatically deleted after 30 days. bool false no
enable_mesh_certificates Controls the issuance of workload mTLS certificates. When enabled the GKE Workload Identity Certificates controller and node agent will be deployed in the cluster. Requires Workload Identity. bool false no
enable_network_egress_export Whether to enable network egress metering for this cluster. If enabled, a daemonset will be created in the cluster to meter network egress traffic. bool false no
enable_resource_consumption_export Whether to enable resource consumption metering on this cluster. When enabled, a table will be created in the resource export BigQuery dataset to store resource consumption data. The resulting table can be joined with the resource usage table or with BigQuery billing export. bool true no
enable_shielded_nodes Enable Shielded Nodes features on all nodes in this cluster bool true no
enable_vertical_pod_autoscaling Vertical Pod Autoscaling automatically adjusts the resources of pods controlled by it bool false no
filestore_csi_driver The status of the Filestore CSI driver addon, which allows the usage of filestore instance as volumes bool false no
firewall_inbound_ports List of TCP ports for admission/webhook controllers. Either flag add_master_webhook_firewall_rules or add_cluster_firewall_rules (also adds egress rules) must be set to true for inbound-ports firewall rules to be applied. list(string)
[
"8443",
"9443",
"15017"
]
no
firewall_priority Priority rule for firewall rules number 1000 no
gateway_api_channel The gateway api channel of this cluster. Accepted values are CHANNEL_STANDARD and CHANNEL_DISABLED. string null no
gce_pd_csi_driver Whether this cluster should enable the Google Compute Engine Persistent Disk Container Storage Interface (CSI) Driver. bool true no
gcs_fuse_csi_driver Whether GCE FUSE CSI driver is enabled for this cluster. bool false no
gke_backup_agent_config Whether Backup for GKE agent is enabled for this cluster. bool false no
grant_registry_access Grants created cluster-specific service account storage.objectViewer and artifactregistry.reader roles. 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 The workload pool to attach all Kubernetes service accounts to. (Default value of enabled automatically sets project-based pool [project_id].svc.id.goog) string "enabled" no
initial_node_count The number of nodes to create in this cluster's default node pool. number 0 no
ip_masq_link_local Whether to masquerade traffic to the link-local prefix (169.254.0.0/16). bool false no
ip_masq_resync_interval The interval at which the agent attempts to sync its ConfigMap file from the disk. string "60s" no
ip_range_pods The name of the secondary subnet ip range to use for pods string n/a yes
ip_range_services The name of the secondary subnet range to use for services string n/a yes
issue_client_certificate Issues a client certificate to authenticate to the cluster endpoint. To maximize the security of your cluster, leave this option disabled. Client certificates don't automatically rotate and aren't easily revocable. WARNING: changing this after cluster creation is destructive! bool false no
kubernetes_version The Kubernetes version of the masters. If set to 'latest' it will pull latest available version in the selected region. string "latest" no
logging_enabled_components List of services to monitor: SYSTEM_COMPONENTS, WORKLOADS. Empty list is default GKE configuration. list(string) [] no
logging_service The logging service that the cluster should write logs to. Available options include logging.googleapis.com, logging.googleapis.com/kubernetes (beta), and none string "logging.googleapis.com/kubernetes" no
maintenance_end_time Time window specified for recurring maintenance operations in RFC3339 format string "" no
maintenance_exclusions List of maintenance exclusions. A cluster can have up to three list(object({ name = string, start_time = string, end_time = string, exclusion_scope = string })) [] no
maintenance_recurrence Frequency of the recurring maintenance window in RFC5545 format. string "" no
maintenance_start_time Time window specified for daily or recurring maintenance operations in RFC3339 format string "05:00" no
master_authorized_networks List of master authorized networks. If none are provided, disallow external access (except the cluster node IPs, which GKE automatically whitelists). list(object({ cidr_block = string, display_name = string })) [] no
monitoring_enable_managed_prometheus Configuration for Managed Service for Prometheus. Whether or not the managed collection is enabled. bool false no
monitoring_enable_observability_metrics Whether or not the advanced datapath metrics are enabled. bool false no
monitoring_enabled_components List of services to monitor: SYSTEM_COMPONENTS, WORKLOADS (provider version >= 3.89.0). Empty list is default GKE configuration. list(string) [] no
monitoring_observability_metrics_relay_mode Mode used to make advanced datapath metrics relay available. string null no
monitoring_service The monitoring service that the cluster should write metrics to. Automatically send metrics from pods in the cluster to the Google Cloud Monitoring API. VM metrics will be collected by Google Compute Engine regardless of this setting Available options include monitoring.googleapis.com, monitoring.googleapis.com/kubernetes (beta) and none string "monitoring.googleapis.com/kubernetes" no
name The name of the cluster (required) string n/a yes
network The VPC network to host the cluster in (required) string n/a yes
network_policy Enable network policy addon bool false no
network_policy_provider The network policy provider. string "CALICO" no
network_project_id The project ID of the shared VPC's host (for shared vpc support) string "" no
node_metadata Specifies how node metadata is exposed to the workload running on the node string "GKE_METADATA" no
node_pools List of maps containing node pools list(map(any))
[
{
"name": "default-node-pool"
}
]
no
node_pools_labels Map of maps containing node labels by node-pool name map(map(string))
{
"all": {},
"default-node-pool": {}
}
no
node_pools_linux_node_configs_sysctls Map of maps containing linux node config sysctls by node-pool name map(map(string))
{
"all": {},
"default-node-pool": {}
}
no
node_pools_metadata Map of maps containing node metadata by node-pool name map(map(string))
{
"all": {},
"default-node-pool": {}
}
no
node_pools_oauth_scopes Map of lists containing node oauth scopes by node-pool name map(list(string))
{
"all": [
"https://www.googleapis.com/auth/cloud-platform"
],
"default-node-pool": []
}
no
node_pools_resource_labels Map of maps containing resource labels by node-pool name map(map(string))
{
"all": {},
"default-node-pool": {}
}
no
node_pools_tags Map of lists containing node network tags by node-pool name map(list(string))
{
"all": [],
"default-node-pool": []
}
no
node_pools_taints Map of lists containing node taints by node-pool name map(list(object({ key = string, value = string, effect = string })))
{
"all": [],
"default-node-pool": []
}
no
non_masquerade_cidrs List of strings in CIDR notation that specify the IP address ranges that do not use IP masquerading. list(string)
[
"10.0.0.0/8",
"172.16.0.0/12",
"192.168.0.0/16"
]
no
notification_config_topic The desired Pub/Sub topic to which notifications will be sent by GKE. Format is projects/{project}/topics/{topic}. string "" no
project_id The project ID to host the cluster in (required) string n/a yes
region The region to host the cluster in (optional if zonal cluster / required if regional) string null no
regional Whether is a regional cluster (zonal cluster if set false. WARNING: changing this after cluster creation is destructive!) bool true no
registry_project_ids Projects holding Google Container Registries. If empty, we use the cluster project. If a service account is created and the grant_registry_access variable is set to true, the storage.objectViewer and artifactregsitry.reader roles are assigned on these projects. list(string) [] no
release_channel The release channel of this cluster. Accepted values are UNSPECIFIED, RAPID, REGULAR and STABLE. Defaults to REGULAR. string "REGULAR" no
remove_default_node_pool Remove default node pool while setting up the cluster bool false no
resource_usage_export_dataset_id The ID of a BigQuery Dataset for using BigQuery as the destination of resource usage export. string "" no
security_posture_mode Security posture mode. Accepted values are DISABLED and BASIC. Defaults to DISABLED. string "DISABLED" no
security_posture_vulnerability_mode Security posture vulnerability mode. Accepted values are VULNERABILITY_DISABLED and VULNERABILITY_BASIC. Defaults to VULNERABILITY_DISABLED. string "VULNERABILITY_DISABLED" 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. This service account should already exists and it will be used by the node pools. If you wish to only override the service account name, you can use service_account_name variable. string "" no
service_account_name The name of the service account that will be created if create_service_account is true. If you wish to use an existing service account, use service_account variable. string "" no
service_external_ips Whether external ips specified by a service will be allowed in this cluster bool false no
shadow_firewall_rules_log_config The log_config for shadow firewall rules. You can set this variable to null to disable logging.
object({
metadata = string
})
{
"metadata": "INCLUDE_ALL_METADATA"
}
no
shadow_firewall_rules_priority The firewall priority of GKE shadow firewall rules. The priority should be less than default firewall, which is 1000. number 999 no
stack_type The stack type to use for this cluster. Either IPV4 or IPV4_IPV6. Defaults to IPV4. string "IPV4" 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)) {} no
subnetwork The subnetwork to host the cluster in (required) string n/a yes
timeouts Timeout for cluster operations. map(string) {} no
upstream_nameservers If specified, the values replace the nameservers taken by default from the node’s /etc/resolv.conf list(string) [] no
windows_node_pools List of maps containing Windows node pools list(map(string)) [] no
zones The zones to host the cluster in (optional if regional cluster / required if zonal) list(string) [] no

Outputs

Name Description
ca_certificate Cluster ca certificate (base64 encoded)
cluster_id Cluster ID
endpoint Cluster endpoint
gateway_api_channel The gateway api channel of this cluster.
horizontal_pod_autoscaling_enabled Whether horizontal pod autoscaling enabled
http_load_balancing_enabled Whether http load balancing enabled
identity_namespace Workload Identity pool
instance_group_urls List of GKE generated instance groups
location Cluster location (region if regional cluster, zone if zonal cluster)
logging_service Logging service used
master_authorized_networks_config Networks from which access to master is permitted
master_version Current master kubernetes version
mesh_certificates_config Mesh certificates configuration
min_master_version Minimum master kubernetes version
monitoring_service Monitoring service used
name Cluster name
network_policy_enabled Whether network policy enabled
node_pools_names List of node pools names
node_pools_versions Node pool versions by node pool name
region Cluster region
release_channel The release channel of this cluster
service_account The service account to default running nodes as if not overridden in node_pools.
type Cluster type (regional / zonal)
vertical_pod_autoscaling_enabled Whether vertical pod autoscaling enabled
zones List of zones in which the cluster resides

node_pools variable

Use this variable for provisioning linux based node pools. For Windows based node pools use windows_node_pools

The node_pools variable takes the following parameters:

Name Description Default Requirement
accelerator_count The number of the guest accelerator cards exposed to this instance 0 Optional
accelerator_type The accelerator type resource to expose to the instance " " Optional
auto_repair Whether the nodes will be automatically repaired true Optional
autoscaling Configuration required by cluster autoscaler to adjust the size of the node pool to the current cluster usage true Optional
auto_upgrade Whether the nodes will be automatically upgraded true (if cluster is regional) Optional
boot_disk_kms_key The Customer Managed Encryption Key used to encrypt the boot disk attached to each node in the node pool. This should be of the form projects/[KEY_PROJECT_ID]/locations/[LOCATION]/keyRings/[RING_NAME]/cryptoKeys/[KEY_NAME]. " " Optional
disk_size_gb Size of the disk attached to each node, specified in GB. The smallest allowed disk size is 10GB 100 Optional
disk_type Type of the disk attached to each node (e.g. 'pd-standard' or 'pd-ssd') pd-standard Optional
effect Effect for the taint Required
enable_gcfs Google Container File System (gcfs) has to be enabled for image streaming to be active. Needs image_type to be set to COS_CONTAINERD. false Optional
enable_gvnic gVNIC (GVE) is an alternative to the virtIO-based ethernet driver. Needs a Container-Optimized OS node image. false Optional
enable_integrity_monitoring Enables monitoring and attestation of the boot integrity of the instance. The attestation is performed against the integrity policy baseline. This baseline is initially derived from the implicitly trusted boot image when the instance is created. true Optional
enable_secure_boot Secure Boot helps ensure that the system only runs authentic software by verifying the digital signature of all boot components, and halting the boot process if signature verification fails. false Optional
gpu_partition_size Size of partitions to create on the GPU null Optional
image_type The image type to use for this node. Note that changing the image type will delete and recreate all nodes in the node pool COS_CONTAINERD Optional
initial_node_count The initial number of nodes for the pool. In regional or multi-zonal clusters, this is the number of nodes per zone. Changing this will force recreation of the resource. Defaults to the value of min_count " " Optional
key The key required for the taint Required
logging_variant The type of logging agent that is deployed by default for newly created node pools in the cluster. Valid values include DEFAULT and MAX_THROUGHPUT. DEFAULT Optional
local_ssd_count The amount of local SSD disks that will be attached to each cluster node and may be used as a hostpath volume or a local PersistentVolume. 0 Optional
machine_type The name of a Google Compute Engine machine type e2-medium Optional
min_cpu_platform Minimum CPU platform to be used by the nodes in the pool. The nodes may be scheduled on the specified or newer CPU platform. " " Optional
max_count Maximum number of nodes in the NodePool. Must be >= min_count. Cannot be used with total limits. 100 Optional
total_max_count Total maximum number of nodes in the NodePool. Must be >= min_count. Cannot be used with per zone limits. null Optional
max_pods_per_node The maximum number of pods per node in this cluster null Optional
strategy The upgrade stragey to be used for upgrading the nodes. Valid values of state are: SURGE or BLUE_GREEN "SURGE" Optional
max_surge The number of additional nodes that can be added to the node pool during an upgrade. Increasing max_surge raises the number of nodes that can be upgraded simultaneously. Can be set to 0 or greater. Only works with SURGE strategy. 1 Optional
max_unavailable The number of nodes that can be simultaneously unavailable during an upgrade. Increasing max_unavailable raises the number of nodes that can be upgraded in parallel. Can be set to 0 or greater. Only works with SURGE strategy. 0 Optional
node_pool_soak_duration Time needed after draining the entire blue pool. After this period, the blue pool will be cleaned up. By default, it is set to one hour (3600 seconds). The maximum length of the soak time is 7 days (604,800 seconds). Only works with BLUE_GREEN strategy. "3600s" Optional
batch_soak_duration Soak time after each batch gets drained, with the default being zero seconds. Only works with BLUE_GREEN strategy. "0s" Optional
batch_node_count Absolute number of nodes to drain in a batch. If it is set to zero, this phase will be skipped. Cannot be used together with batch_percentage. Only works with BLUE_GREEN strategy. 1 Optional
batch_percentage Percentage of nodes to drain in a batch. Must be in the range of [0.0, 1.0]. If it is set to zero, this phase will be skipped. Cannot be used together with batch_node_count. Only works with BLUE_GREEN strategy. null Optional
min_count Minimum number of nodes in the NodePool. Must be >=0 and <= max_count. Should be used when autoscaling is true. Cannot be used with total limits. 1 Optional
total_min_count Total minimum number of nodes in the NodePool. Must be >=0 and <= max_count. Should be used when autoscaling is true. Cannot be used with per zone limits. null Optional
name The name of the node pool Required
node_count The number of nodes in the nodepool when autoscaling is false. Otherwise defaults to 1. Only valid for non-autoscaling clusters Required
node_locations The list of zones in which the cluster's nodes are located. Nodes must be in the region of their regional cluster or in the same region as their cluster's zone for zonal clusters. Defaults to cluster level node locations if nothing is specified " " Optional
node_metadata Options to expose the node metadata to the workload running on the node Optional
preemptible A boolean that represents whether or not the underlying node VMs are preemptible false Optional
spot A boolean that represents whether the underlying node VMs are spot false Optional
service_account The service account to be used by the Node VMs " " Optional
tags The list of instance tags applied to all nodes Required
value The value for the taint Required
version The Kubernetes version for the nodes in this pool. Should only be set if auto_upgrade is false " " Optional
location_policy Location policy specifies the algorithm used when scaling-up the node pool. Location policy is supported only in 1.24.1+ clusters. " " Optional

windows_node_pools variable

The windows_node_pools variable takes the same parameters as node_pools but is reserved for provisioning Windows based node pools only. This variable is introduced to satisfy a specific requirement for the presence of at least one linux based node pool in the cluster before a windows based node pool can be created.

Requirements

Before this module can be used on a project, you must ensure that the following pre-requisites are fulfilled:

  1. Terraform and kubectl are installed on the machine where Terraform is executed.
  2. The Service Account you execute the module with has the right permissions.
  3. The Compute Engine and Kubernetes Engine APIs are active on the project you will launch the cluster in.
  4. If you are using a Shared VPC, the APIs must also be activated on the Shared VPC host project and your service account needs the proper permissions there.

The project factory can be used to provision projects with the correct APIs active and the necessary Shared VPC connections.

Software Dependencies

Kubectl

Terraform and Plugins

gcloud

Some submodules use the terraform-google-gcloud module. By default, this module assumes you already have gcloud installed in your $PATH. See the module documentation for more information.

Configure a Service Account

In order to execute this module you must have a Service Account with the following project roles:

  • roles/compute.viewer
  • roles/compute.securityAdmin (only required if add_cluster_firewall_rules is set to true)
  • roles/container.clusterAdmin
  • roles/container.developer
  • roles/iam.serviceAccountAdmin
  • roles/iam.serviceAccountUser
  • roles/resourcemanager.projectIamAdmin (only required if service_account is set to create)

Additionally, if service_account is set to create and grant_registry_access is requested, the service account requires the following role on the registry_project_ids projects:

  • roles/resourcemanager.projectIamAdmin

Enable APIs

In order to operate with the Service Account you must activate the following APIs on the project where the Service Account was created:

  • Compute Engine API - compute.googleapis.com
  • Kubernetes Engine API - container.googleapis.com

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