Cheap k8s cluster Terraform

readme.md

So I recently came across this article: https://redmaple.tech/blogs/affordable-kubernetes-for-personal-projects/

and as I'm currently trying to learn how to use Terraform I thought I might give it a shot to put this tutorial into a terraform module.

main.tf

provider "google" {
  project = "<project>"
  region  = "us-central1"
}

data "google_client_config" "default" {}

provider "kubernetes" {
  load_config_file       = false
  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>"
  name                       = "<project>"
  region                     = "us-central1"
  zones                      = ["us-central1-a", "us-central1-b", "us-central1-f"]
  network                    = "default"
  subnetwork                 = "default"
  ip_range_pods              = "/17"
  ip_range_services          = "/22"
  http_load_balancing        = false
  horizontal_pod_autoscaling = true
  network_policy             = false

  node_pools = [
    {
      name               = "ingress-pool"
      machine_type       = "e2-micro"
      node_locations     = "us-central1-b,us-central1-c"
      min_count          = 1
      max_count          = 100
      local_ssd_count    = 0
      disk_size_gb       = 10
      disk_type          = "pd-standard"
      image_type         = "COS"
      auto_repair        = true
      auto_upgrade       = true
      service_account    = "project-service-account@<PROJECT ID>.iam.gserviceaccount.com"
      preemptible        = false
      initial_node_count = 80
    },
    {
      name               = "web-pool"
      machine_type       = "e2-medium"
      node_locations     = "us-central1-b,us-central1-c"
      min_count          = 1
      max_count          = 100
      local_ssd_count    = 0
      disk_size_gb       = 20
      disk_type          = "pd-standard"
      image_type         = "COS"
      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 = []

    ingress-pool = [
      "https://www.googleapis.com/auth/cloud-platform",
    ]
  }

  node_pools_labels = {
    all = {}

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

  node_pools_metadata = {
    all = {}

    ingress-pool = {
      node-pool-metadata-custom-value = "ingress-pool"
    }
  }

  node_pools_taints = {
    all = []

    ingress-pool = [
      {
        key    = "dedicated"
        value  = "ingress"
        effect = "NO_SCHEDULE"
      },
    ]
  }

  node_pools_tags = {
    all = []

    ingress-pool = [
      "ingress-pool",
    ]
  }
}