tf-gke-test/simple-template/providers.tf

data "google_client_config" "primary" {}

provider "google" {
  project = var.project
  region  = var.region
}

provider "kubernetes" {
  host                   = "https://${google_container_cluster.primary.endpoint}"
  token                  = data.google_client_config.primary.access_token
  cluster_ca_certificate = base64decode(google_container_cluster.primary.master_auth.0.cluster_ca_certificate)
}