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Run etcd cluster on-host, across controllers on Google Cloud

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* Change controllers from a managed group to individual instances
* Create discrete DNS records to each controller's private IP for etcd
* Change etcd to run on-host, across controllers (etcd-member.service)
* Reduce time to bootstrap a cluster
* Deprecate self-hosted-etcd on the Google Cloud platform
This commit is contained in:
Dalton Hubble
2017-11-05 11:01:50 -08:00
parent ae07a21e3d
commit 7b38271212
17 changed files with 212 additions and 93 deletions
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31
google-cloud/container-linux/kubernetes/controllers/network.tf
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@ -1,4 +1,9 @@
# Controller Network Load balancer DNS record
# Static IPv4 address for the Network Load Balancer
resource "google_compute_address" "controllers-ip" {
name = "${var.cluster_name}-controllers-ip"
}
# DNS record for the Network Load Balancer
resource "google_dns_record_set" "controllers" {
# DNS Zone name where record should be created
managed_zone = "${var.dns_zone_name}"
@ -12,12 +17,7 @@ resource "google_dns_record_set" "controllers" {
rrdatas = ["${google_compute_address.controllers-ip.address}"]
}
# Static IP for the Network Load Balancer
resource "google_compute_address" "controllers-ip" {
name = "${var.cluster_name}-controllers-ip"
}
# Network Load Balancer (i.e. forwarding rules)
# Network Load Balancer (i.e. forwarding rule)
resource "google_compute_forwarding_rule" "controller-https-rule" {
name = "${var.cluster_name}-controller-https-rule"
ip_address = "${google_compute_address.controllers-ip.address}"
@ -25,26 +25,23 @@ resource "google_compute_forwarding_rule" "controller-https-rule" {
target = "${google_compute_target_pool.controllers.self_link}"
}
resource "google_compute_forwarding_rule" "controller-ssh-rule" {
name = "${var.cluster_name}-controller-ssh-rule"
ip_address = "${google_compute_address.controllers-ip.address}"
port_range = "22"
target = "${google_compute_target_pool.controllers.self_link}"
}
# Network Load Balancer target pool of instances.
# Target pool of instances for the controller(s) Network Load Balancer
resource "google_compute_target_pool" "controllers" {
name = "${var.cluster_name}-controller-pool"
instances = [
"${google_compute_instance.controllers.*.self_link}",
]
health_checks = [
"${google_compute_http_health_check.ingress.name}",
"${google_compute_http_health_check.kubelet.name}",
]
session_affinity = "NONE"
}
# Kubelet HTTP Health Check
resource "google_compute_http_health_check" "ingress" {
resource "google_compute_http_health_check" "kubelet" {
name = "${var.cluster_name}-kubelet-health"
description = "Health check Kubelet health host port"