fix: Make GKE components ADC compatible (#2440)

Author: Daisyprakash

examples/gke_autopilot_cluster/main.tf

@@ -36,7 +36,7 @@ module "gke" {
   source  = "terraform-google-modules/kubernetes-engine/google//modules/gke-autopilot-cluster"
   version = "~> 38.0"
 
-  project    = var.project_id
+  project_id    = var.project_id
   name       = "${local.cluster_type}-cluster"
   location   = var.region
   network    = module.gcp-network.network_self_link

examples/gke_standard_cluster/main.tf

@@ -37,7 +37,7 @@ module "gke" {
   source  = "terraform-google-modules/kubernetes-engine/google//modules/gke-standard-cluster"
   version = "~> 38.0"
 
-  project    = var.project_id
+  project_id    = var.project_id
   name       = "${local.cluster_type}-cluster${var.cluster_name_suffix}"
   location   = var.region
   network    = var.network
@@ -87,7 +87,7 @@ module "node_pool" {
   source  = "terraform-google-modules/kubernetes-engine/google//modules/gke-node-pool"
   version = "~> 38.0"
 
-  project  = var.project_id
+  project_id  = var.project_id
   location = var.region
   cluster  = module.gke.cluster_name
   node_config = {

modules/gke-autopilot-cluster/README.md

@@ -54,7 +54,7 @@ For a module with a complete configuration of a Google Cloud Platform Kubernetes
 | pod\_security\_policy\_config | Configuration for the [PodSecurityPolicy](https://cloud.google.com/kubernetes-engine/docs/how-to/pod-security-policies) feature. | <pre>object({<br>    enabled = bool<br>  })</pre> | `null` | no |
 | private\_cluster\_config | Configuration for private clusters, clusters with private nodes. | <pre>object({<br>    enable_private_nodes        = optional(bool)<br>    enable_private_endpoint     = optional(bool)<br>    master_ipv4_cidr_block      = optional(string)<br>    private_endpoint_subnetwork = optional(string)<br>    master_global_access_config = optional(object({<br>      enabled = optional(bool)<br>    }))<br>  })</pre> | <pre>{<br>  "enable_private_endpoint": true,<br>  "enable_private_nodes": true,<br>  "master_global_access_config": {<br>    "enabled": true<br>  }<br>}</pre> | no |
 | private\_ipv6\_google\_access | The desired state of IPv6 access to Google Services. By default, no private IPv6 access to or from Google Services (all access will be via IPv4). | `string` | `null` | no |
-| project | The ID of the project in which the resource belongs. If it is not provided, the provider project is used. | `string` | n/a | yes |
+| project\_id | The ID of the project in which the resource belongs. If it is not provided, the provider project is used. | `string` | n/a | yes |
 | protect\_config | Enable/Disable Protect API features for the cluster. | <pre>object({<br>    workload_config = object({<br>      audit_mode = string<br>    })<br>    workload_vulnerability_mode = optional(string)<br>  })</pre> | `null` | no |
 | release\_channel | The release channel of this cluster. Accepted values are `UNSPECIFIED`, `RAPID`, `REGULAR` and `STABLE`. Defaults to `REGULAR`. | <pre>object({<br>    channel = optional(string)<br>  })</pre> | <pre>{<br>  "channel": "REGULAR"<br>}</pre> | no |
 | resource\_labels | The GCE resource labels (a map of key/value pairs) to be applied to the cluster. Note: This field is non-authoritative, and will only manage the labels present in your configuration. Please refer to the field 'effective\_labels' for all of the labels present on the resource. | `map(string)` | `null` | no |

modules/gke-autopilot-cluster/main.tf

@@ -19,7 +19,7 @@ resource "google_container_cluster" "main" {
 
   name                = var.name
   description         = var.description
-  project             = var.project
+  project             = var.project_id
   resource_labels     = var.resource_labels
   location            = var.location
   node_locations      = var.node_locations