terraform-hcloud-kube-hetzner/main.tf
2022-01-13 10:02:45 +01:00

158 lines
2.7 KiB
HCL

resource "random_password" "k3s_token" {
length = 48
special = false
}
resource "hcloud_ssh_key" "default" {
name = "K3S terraform module - Provisioning SSH key"
public_key = local.ssh_public_key
}
resource "hcloud_network" "k3s" {
name = "k3s-net"
ip_range = "10.0.0.0/8"
}
resource "hcloud_network_subnet" "k3s" {
network_id = hcloud_network.k3s.id
type = "cloud"
network_zone = "eu-central"
ip_range = "10.0.0.0/16"
}
resource "hcloud_firewall" "k3s" {
name = "k3s-firewall"
# Allowing internal cluster traffic and Hetzner metadata service and cloud API IPs
rule {
direction = "in"
protocol = "tcp"
port = "any"
source_ips = [
"127.0.0.1/32",
"10.0.0.0/8",
"169.254.169.254/32",
"213.239.246.1/32"
]
}
rule {
direction = "in"
protocol = "udp"
port = "any"
source_ips = [
"127.0.0.1/32",
"10.0.0.0/8",
"169.254.169.254/32",
"213.239.246.1/32"
]
}
rule {
direction = "in"
protocol = "icmp"
source_ips = [
"127.0.0.1/32",
"10.0.0.0/8",
"169.254.169.254/32",
"213.239.246.1/32"
]
}
# Allow all traffic to the kube api server
rule {
direction = "in"
protocol = "tcp"
port = "6443"
source_ips = [
"0.0.0.0/0"
]
}
# Allow all traffic to the ssh port
rule {
direction = "in"
protocol = "tcp"
port = "22"
source_ips = [
"0.0.0.0/0"
]
}
# Allow ping on ipv4
rule {
direction = "in"
protocol = "icmp"
source_ips = [
"0.0.0.0/0"
]
}
# Allow basic out traffic
# ICMP to ping outside services
rule {
direction = "out"
protocol = "icmp"
destination_ips = [
"0.0.0.0/0"
]
}
# DNS
rule {
direction = "out"
protocol = "tcp"
port = "53"
destination_ips = [
"0.0.0.0/0"
]
}
rule {
direction = "out"
protocol = "udp"
port = "53"
destination_ips = [
"0.0.0.0/0"
]
}
# HTTP(s)
rule {
direction = "out"
protocol = "tcp"
port = "80"
destination_ips = [
"0.0.0.0/0"
]
}
rule {
direction = "out"
protocol = "tcp"
port = "443"
destination_ips = [
"0.0.0.0/0"
]
}
#NTP
rule {
direction = "out"
protocol = "udp"
port = "123"
destination_ips = [
"0.0.0.0/0"
]
}
}
data "hcloud_image" "linux" {
name = local.hcloud_image_name
}
resource "local_file" "traefik_config" {
content = templatefile("${path.module}/templates/traefik_config.yaml.tpl", {
lb_server_type = var.lb_server_type
location = var.location
})
filename = "${path.module}/templates/rendered/traefik_config.yaml"
}