mirror of
https://github.com/puppetmaster/typhoon.git
synced 2024-12-26 21:09:34 +01:00
a4fab61066
* Consolidate load balancer frontend IPs to just the minimal IPv4 and IPv6 addresses that are needed per load balancer. apiserver and ingress use separate ports, so there is not a true need for a separate public IPv4 address just for apiserver * Some might prefer a separate IP just because it slightly hides the apiserver, but these are public hosted endpoints that can be discovered * Reduce the cost of an Azure cluster since IPv4 public IPs are billed ($3.60/mo/cluster)
211 lines
6.7 KiB
HCL
211 lines
6.7 KiB
HCL
# DNS A record for the apiserver load balancer
|
|
resource "azurerm_dns_a_record" "apiserver" {
|
|
# DNS Zone name where record should be created
|
|
zone_name = var.dns_zone
|
|
resource_group_name = var.dns_zone_group
|
|
# DNS record
|
|
name = var.cluster_name
|
|
ttl = 300
|
|
# IPv4 address of apiserver load balancer
|
|
records = [azurerm_public_ip.frontend-ipv4.ip_address]
|
|
}
|
|
|
|
# DNS AAAA record for the apiserver load balancer
|
|
resource "azurerm_dns_aaaa_record" "apiserver" {
|
|
# DNS Zone name where record should be created
|
|
zone_name = var.dns_zone
|
|
resource_group_name = var.dns_zone_group
|
|
# DNS record
|
|
name = var.cluster_name
|
|
ttl = 300
|
|
# IPv6 address of apiserver load balancer
|
|
records = [azurerm_public_ip.frontend-ipv6.ip_address]
|
|
}
|
|
|
|
# Static IPv4 address for the load balancer
|
|
resource "azurerm_public_ip" "frontend-ipv4" {
|
|
name = "${var.cluster_name}-frontend-ipv4"
|
|
resource_group_name = azurerm_resource_group.cluster.name
|
|
location = var.location
|
|
ip_version = "IPv4"
|
|
sku = "Standard"
|
|
allocation_method = "Static"
|
|
}
|
|
|
|
# Static IPv6 address for the load balancer
|
|
resource "azurerm_public_ip" "frontend-ipv6" {
|
|
name = "${var.cluster_name}-ingress-ipv6"
|
|
resource_group_name = azurerm_resource_group.cluster.name
|
|
location = var.location
|
|
ip_version = "IPv6"
|
|
sku = "Standard"
|
|
allocation_method = "Static"
|
|
}
|
|
|
|
# Network Load Balancer for apiservers and ingress
|
|
resource "azurerm_lb" "cluster" {
|
|
name = var.cluster_name
|
|
resource_group_name = azurerm_resource_group.cluster.name
|
|
location = var.location
|
|
sku = "Standard"
|
|
|
|
frontend_ip_configuration {
|
|
name = "frontend-ipv4"
|
|
public_ip_address_id = azurerm_public_ip.frontend-ipv4.id
|
|
}
|
|
|
|
frontend_ip_configuration {
|
|
name = "frontend-ipv6"
|
|
public_ip_address_id = azurerm_public_ip.frontend-ipv6.id
|
|
}
|
|
}
|
|
|
|
resource "azurerm_lb_rule" "apiserver-ipv4" {
|
|
name = "apiserver-ipv4"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
frontend_ip_configuration_name = "frontend-ipv4"
|
|
disable_outbound_snat = true
|
|
|
|
protocol = "Tcp"
|
|
frontend_port = 6443
|
|
backend_port = 6443
|
|
backend_address_pool_ids = [azurerm_lb_backend_address_pool.controller-ipv4.id]
|
|
probe_id = azurerm_lb_probe.apiserver.id
|
|
}
|
|
|
|
resource "azurerm_lb_rule" "apiserver-ipv6" {
|
|
name = "apiserver-ipv6"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
frontend_ip_configuration_name = "frontend-ipv6"
|
|
disable_outbound_snat = true
|
|
|
|
protocol = "Tcp"
|
|
frontend_port = 6443
|
|
backend_port = 6443
|
|
backend_address_pool_ids = [azurerm_lb_backend_address_pool.controller-ipv6.id]
|
|
probe_id = azurerm_lb_probe.apiserver.id
|
|
}
|
|
|
|
resource "azurerm_lb_rule" "ingress-http-ipv4" {
|
|
name = "ingress-http-ipv4"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
frontend_ip_configuration_name = "frontend-ipv4"
|
|
disable_outbound_snat = true
|
|
|
|
protocol = "Tcp"
|
|
frontend_port = 80
|
|
backend_port = 80
|
|
backend_address_pool_ids = [azurerm_lb_backend_address_pool.worker-ipv4.id]
|
|
probe_id = azurerm_lb_probe.ingress.id
|
|
}
|
|
|
|
resource "azurerm_lb_rule" "ingress-https-ipv4" {
|
|
name = "ingress-https-ipv4"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
frontend_ip_configuration_name = "frontend-ipv4"
|
|
disable_outbound_snat = true
|
|
|
|
protocol = "Tcp"
|
|
frontend_port = 443
|
|
backend_port = 443
|
|
backend_address_pool_ids = [azurerm_lb_backend_address_pool.worker-ipv4.id]
|
|
probe_id = azurerm_lb_probe.ingress.id
|
|
}
|
|
|
|
resource "azurerm_lb_rule" "ingress-http-ipv6" {
|
|
name = "ingress-http-ipv6"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
frontend_ip_configuration_name = "frontend-ipv6"
|
|
disable_outbound_snat = true
|
|
|
|
protocol = "Tcp"
|
|
frontend_port = 80
|
|
backend_port = 80
|
|
backend_address_pool_ids = [azurerm_lb_backend_address_pool.worker-ipv6.id]
|
|
probe_id = azurerm_lb_probe.ingress.id
|
|
}
|
|
|
|
resource "azurerm_lb_rule" "ingress-https-ipv6" {
|
|
name = "ingress-https-ipv6"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
frontend_ip_configuration_name = "frontend-ipv6"
|
|
disable_outbound_snat = true
|
|
|
|
protocol = "Tcp"
|
|
frontend_port = 443
|
|
backend_port = 443
|
|
backend_address_pool_ids = [azurerm_lb_backend_address_pool.worker-ipv6.id]
|
|
probe_id = azurerm_lb_probe.ingress.id
|
|
}
|
|
|
|
# Backend Address Pools
|
|
|
|
# Address pool of controllers
|
|
resource "azurerm_lb_backend_address_pool" "controller-ipv4" {
|
|
name = "controller-ipv4"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
}
|
|
|
|
resource "azurerm_lb_backend_address_pool" "controller-ipv6" {
|
|
name = "controller-ipv6"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
}
|
|
|
|
# Address pools for workers
|
|
resource "azurerm_lb_backend_address_pool" "worker-ipv4" {
|
|
name = "worker-ipv4"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
}
|
|
|
|
resource "azurerm_lb_backend_address_pool" "worker-ipv6" {
|
|
name = "worker-ipv6"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
}
|
|
|
|
# Health checks / probes
|
|
|
|
# TCP health check for apiserver
|
|
resource "azurerm_lb_probe" "apiserver" {
|
|
name = "apiserver"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
protocol = "Tcp"
|
|
port = 6443
|
|
# unhealthy threshold
|
|
number_of_probes = 3
|
|
interval_in_seconds = 5
|
|
}
|
|
|
|
# HTTP health check for ingress
|
|
resource "azurerm_lb_probe" "ingress" {
|
|
name = "ingress"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
protocol = "Http"
|
|
port = 10254
|
|
request_path = "/healthz"
|
|
# unhealthy threshold
|
|
number_of_probes = 3
|
|
interval_in_seconds = 5
|
|
}
|
|
|
|
# Outbound SNAT
|
|
|
|
resource "azurerm_lb_outbound_rule" "outbound-ipv4" {
|
|
name = "outbound-ipv4"
|
|
protocol = "All"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
backend_address_pool_id = azurerm_lb_backend_address_pool.worker-ipv4.id
|
|
frontend_ip_configuration {
|
|
name = "frontend-ipv4"
|
|
}
|
|
}
|
|
|
|
resource "azurerm_lb_outbound_rule" "outbound-ipv6" {
|
|
name = "outbound-ipv6"
|
|
protocol = "All"
|
|
loadbalancer_id = azurerm_lb.cluster.id
|
|
backend_address_pool_id = azurerm_lb_backend_address_pool.worker-ipv6.id
|
|
frontend_ip_configuration {
|
|
name = "frontend-ipv6"
|
|
}
|
|
}
|