mirror of
https://github.com/puppetmaster/typhoon.git
synced 2024-12-26 09:39:34 +01:00
a97df839ea
* Terraform provider "google" plugin releases leave the disk device_name as "" by default. Recently the API has started to set a default name "persistent-disk-0". Plan and apply show all instance groups need to be recreated to "fix" the name * Impact: Controller and worker instance groups are deleted and recreated, deleting data on controllers and bringing down clusters * Fix: Explicitly set the disk_name to persistent-disk-0 so that terraform finds no diff needs to be applied. * https://github.com/poseidon/typhoon/issues/34 * https://github.com/terraform-providers/terraform-provider-google/issues/574
77 lines
2.3 KiB
HCL
77 lines
2.3 KiB
HCL
# Managed Instance Group
|
|
resource "google_compute_instance_group_manager" "controllers" {
|
|
name = "${var.cluster_name}-controller-group"
|
|
description = "Compute instance group of ${var.cluster_name} controllers"
|
|
|
|
# Instance name prefix for instances in the group
|
|
base_instance_name = "${var.cluster_name}-controller"
|
|
instance_template = "${google_compute_instance_template.controller.self_link}"
|
|
update_strategy = "RESTART"
|
|
zone = "${var.zone}"
|
|
target_size = "${var.count}"
|
|
|
|
# Target pool instances in the group should be added into
|
|
target_pools = [
|
|
"${google_compute_target_pool.controllers.self_link}",
|
|
]
|
|
}
|
|
|
|
# Controller Container Linux Config
|
|
data "template_file" "controller_config" {
|
|
template = "${file("${path.module}/cl/controller.yaml.tmpl")}"
|
|
|
|
vars = {
|
|
k8s_dns_service_ip = "${cidrhost(var.service_cidr, 10)}"
|
|
k8s_etcd_service_ip = "${cidrhost(var.service_cidr, 15)}"
|
|
ssh_authorized_keys = "${var.ssh_authorized_key}"
|
|
kubeconfig_ca_cert = "${var.kubeconfig_ca_cert}"
|
|
kubeconfig_kubelet_cert = "${var.kubeconfig_kubelet_cert}"
|
|
kubeconfig_kubelet_key = "${var.kubeconfig_kubelet_key}"
|
|
kubeconfig_server = "${var.kubeconfig_server}"
|
|
}
|
|
}
|
|
|
|
data "ct_config" "controller_ign" {
|
|
content = "${data.template_file.controller_config.rendered}"
|
|
pretty_print = false
|
|
}
|
|
|
|
resource "google_compute_instance_template" "controller" {
|
|
name_prefix = "${var.cluster_name}-controller-"
|
|
description = "Controller Instance template"
|
|
machine_type = "${var.machine_type}"
|
|
|
|
metadata {
|
|
user-data = "${data.ct_config.controller_ign.rendered}"
|
|
}
|
|
|
|
scheduling {
|
|
automatic_restart = "${var.preemptible ? false : true}"
|
|
preemptible = "${var.preemptible}"
|
|
}
|
|
|
|
disk {
|
|
auto_delete = true
|
|
boot = true
|
|
source_image = "${var.os_image}"
|
|
disk_size_gb = "${var.disk_size}"
|
|
// Set explicit name to match the new default name set by the API.
|
|
// https://github.com/terraform-providers/terraform-provider-google/issues/574
|
|
device_name = "persistent-disk-0"
|
|
}
|
|
|
|
network_interface {
|
|
network = "${var.network}"
|
|
|
|
# Ephemeral external IP
|
|
access_config = {}
|
|
}
|
|
|
|
can_ip_forward = true
|
|
|
|
lifecycle {
|
|
# To update an Instance Template, Terraform should replace the existing resource
|
|
create_before_destroy = true
|
|
}
|
|
}
|