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main.tf
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main.tf
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/**
* Copyright 2018 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
resource "random_string" "suffix" {
length = 4
special = false
upper = false
}
locals {
cluster_type = "safer-cluster"
network_name = "safer-cluster-network-${random_string.suffix.result}"
subnet_name = "safer-cluster-subnet"
master_auth_subnetwork = "safer-cluster-master-subnet"
pods_range_name = "ip-range-pods-${random_string.suffix.result}"
svc_range_name = "ip-range-svc-${random_string.suffix.result}"
subnet_names = [for subnet_self_link in module.gcp-network.subnets_self_links : split("/", subnet_self_link)[length(split("/", subnet_self_link)) - 1]]
}
data "google_client_config" "default" {}
provider "kubernetes" {
host = "https://${module.gke.endpoint}"
token = data.google_client_config.default.access_token
cluster_ca_certificate = base64decode(module.gke.ca_certificate)
}
// A random valid k8s version is retrived
// to specify as an explicit version.
data "google_container_engine_versions" "current" {
project = var.project_id
location = var.region
}
resource "random_shuffle" "version" {
input = data.google_container_engine_versions.current.valid_master_versions
result_count = 1
}
module "gke" {
source = "terraform-google-modules/kubernetes-engine/google//modules/safer-cluster"
version = "~> 32.0"
project_id = var.project_id
name = "${local.cluster_type}-cluster-${random_string.suffix.result}"
regional = true
region = var.region
network = module.gcp-network.network_name
subnetwork = local.subnet_names[index(module.gcp-network.subnets_names, local.subnet_name)]
ip_range_pods = local.pods_range_name
ip_range_services = local.svc_range_name
master_ipv4_cidr_block = "172.16.0.0/28"
add_cluster_firewall_rules = true
firewall_inbound_ports = ["9443", "15017"]
kubernetes_version = random_shuffle.version.result[0]
release_channel = "UNSPECIFIED"
deletion_protection = false
master_authorized_networks = [
{
cidr_block = "10.60.0.0/17"
display_name = "VPC"
},
]
notification_config_topic = google_pubsub_topic.updates.id
}
resource "google_pubsub_topic" "updates" {
name = "cluster-updates-${random_string.suffix.result}"
project = var.project_id
}