kubespray/contrib/terraform/hetzner/modules/kubernetes-cluster/main.tf

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resource "hcloud_network" "kubernetes" {
name = "${var.prefix}-network"
ip_range = var.private_network_cidr
}
resource "hcloud_network_subnet" "kubernetes" {
type = "cloud"
network_id = hcloud_network.kubernetes.id
network_zone = var.network_zone
ip_range = var.private_subnet_cidr
}
resource "hcloud_server" "master" {
for_each = {
for name, machine in var.machines :
name => machine
if machine.node_type == "master"
}
name = "${var.prefix}-${each.key}"
image = each.value.image
server_type = each.value.size
location = var.zone
user_data = templatefile(
"${path.module}/templates/cloud-init.tmpl",
{
ssh_public_keys = var.ssh_public_keys
}
)
firewall_ids = [hcloud_firewall.master.id]
}
resource "hcloud_server_network" "master" {
for_each = hcloud_server.master
server_id = each.value.id
subnet_id = hcloud_network_subnet.kubernetes.id
}
resource "hcloud_server" "worker" {
for_each = {
for name, machine in var.machines :
name => machine
if machine.node_type == "worker"
}
name = "${var.prefix}-${each.key}"
image = each.value.image
server_type = each.value.size
location = var.zone
user_data = templatefile(
"${path.module}/templates/cloud-init.tmpl",
{
ssh_public_keys = var.ssh_public_keys
}
)
firewall_ids = [hcloud_firewall.worker.id]
}
resource "hcloud_server_network" "worker" {
for_each = hcloud_server.worker
server_id = each.value.id
subnet_id = hcloud_network_subnet.kubernetes.id
}
resource "hcloud_firewall" "master" {
name = "${var.prefix}-master-firewall"
rule {
direction = "in"
protocol = "tcp"
port = "22"
source_ips = var.ssh_whitelist
}
rule {
direction = "in"
protocol = "tcp"
port = "6443"
source_ips = var.api_server_whitelist
}
}
resource "hcloud_firewall" "worker" {
name = "${var.prefix}-worker-firewall"
rule {
direction = "in"
protocol = "tcp"
port = "22"
source_ips = var.ssh_whitelist
}
rule {
direction = "in"
protocol = "tcp"
port = "80"
source_ips = var.ingress_whitelist
}
rule {
direction = "in"
protocol = "tcp"
port = "443"
source_ips = var.ingress_whitelist
}
rule {
direction = "in"
protocol = "tcp"
port = "30000-32767"
source_ips = var.nodeport_whitelist
}
}