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Use global HTTP/TCP proxy load balancing for Ingress on GCP

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* Switch Ingress from regional network load balancers to global
HTTP/TCP Proxy load balancing
* Reduce cost by ~$19/month per cluster. Google bills the first 5
global and regional forwarding rules separately. Typhoon clusters now
use 3 global and 0 regional forwarding rules.
* Worker pools no longer include an extraneous load balancer. Remove
worker module's `ingress_static_ip` output.
* Add `ingress_static_ipv4` output variable
* Add `worker_instance_group` output to allow custom global load
balancing
* Deprecate `controllers_ipv4_public` module output
* Deprecate `ingress_static_ip` module output. Use `ingress_static_ipv4`
This commit is contained in:
Dalton Hubble
2018-05-06 23:21:53 -07:00
parent 2eaf04c68b
commit 0c4d59db87
13 changed files with 322 additions and 134 deletions
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49
google-cloud/container-linux/kubernetes/workers/workers.tf
View File

@ -1,5 +1,4 @@
# Regional managed instance group maintains a homogeneous set of workers that
# span the zones in the region.
# Regional managed instance group of workers
resource "google_compute_region_instance_group_manager" "workers" {
name = "${var.name}-worker-group"
description = "Compute instance group of ${var.name} workers"
@ -11,30 +10,18 @@ resource "google_compute_region_instance_group_manager" "workers" {
target_size = "${var.count}"
# target pool to which instances in the group should be added
target_pools = [
"${google_compute_target_pool.workers.self_link}",
]
}
named_port {
name = "http"
port = "80"
}
# Worker Container Linux Config
data "template_file" "worker_config" {
template = "${file("${path.module}/cl/worker.yaml.tmpl")}"
vars = {
kubeconfig = "${indent(10, var.kubeconfig)}"
ssh_authorized_key = "${var.ssh_authorized_key}"
k8s_dns_service_ip = "${cidrhost(var.service_cidr, 10)}"
cluster_domain_suffix = "${var.cluster_domain_suffix}"
named_port {
name = "https"
port = "443"
}
}
data "ct_config" "worker_ign" {
content = "${data.template_file.worker_config.rendered}"
pretty_print = false
snippets = ["${var.clc_snippets}"]
}
# Worker instance template
resource "google_compute_instance_template" "worker" {
name_prefix = "${var.name}-worker-"
description = "Worker Instance template"
@ -76,3 +63,21 @@ resource "google_compute_instance_template" "worker" {
create_before_destroy = true
}
}
# Worker Container Linux Config
data "template_file" "worker_config" {
template = "${file("${path.module}/cl/worker.yaml.tmpl")}"
vars = {
kubeconfig = "${indent(10, var.kubeconfig)}"
ssh_authorized_key = "${var.ssh_authorized_key}"
k8s_dns_service_ip = "${cidrhost(var.service_cidr, 10)}"
cluster_domain_suffix = "${var.cluster_domain_suffix}"
}
}
data "ct_config" "worker_ign" {
content = "${data.template_file.worker_config.rendered}"
pretty_print = false
snippets = ["${var.clc_snippets}"]
}