infra/modules/kubernetes/wireguard/main.tf

385 lines
8.8 KiB
HCL

variable "tls_secret_name" {}
variable "wg_0_conf" {}
variable "firewall_sh" {}
variable "wg_0_key" {}
module "tls_secret" {
source = "../setup_tls_secret"
namespace = "wireguard"
tls_secret_name = var.tls_secret_name
}
resource "kubernetes_namespace" "wireguard" {
metadata {
name = "wireguard"
}
}
resource "kubernetes_config_map" "wg_0_conf" {
metadata {
name = "wg0-conf"
namespace = "wireguard"
labels = {
app = "wireguard"
}
annotations = {
"reloader.stakater.com/match" = "true"
}
}
data = {
"setup-firewall.sh" = var.firewall_sh
"wg0.conf" = format("%s%s", var.wg_0_conf, file("${path.module}/extra/clients.conf"))
}
}
resource "kubernetes_secret" "wg_0_key" {
metadata {
name = "wg0-key"
namespace = "wireguard"
annotations = {
"reloader.stakater.com/match" = "true"
}
}
data = {
"wg0.key" = var.wg_0_key
# If thep rivate key changes the pub key must be updated manually
"wg-ui-config" = format("{\"PrivateKey\": \"%s\",\"PublicKey\": \"%s\",\"Users\": {}}", var.wg_0_key, "3OeDa6Z3Z6vPVxn/WKJujYL7DoDYPPpI5W+2glUYLHU=")
}
type = "generic"
}
resource "kubernetes_deployment" "wireguard" {
metadata {
name = "wireguard"
namespace = "wireguard"
labels = {
app = "wireguard"
}
annotations = {
"reloader.stakater.com/search" = "true"
}
}
spec {
replicas = 1
strategy {
rolling_update {
max_surge = "2"
max_unavailable = "0"
}
}
selector {
match_labels = {
app = "wireguard"
}
}
template {
metadata {
labels = {
app = "wireguard"
}
annotations = {
"prometheus.io/scrape" = "true"
}
}
spec {
container {
image = "sclevine/wg:latest"
name = "wireguard"
image_pull_policy = "IfNotPresent"
lifecycle {
post_start {
exec {
command = ["wg-quick", "up", "wg0"]
}
}
pre_stop {
exec {
command = ["wg-quick", "down", "wg0"]
}
}
}
command = ["tail", "-f", "/dev/null"]
port {
container_port = 51820
protocol = "UDP"
}
volume_mount {
name = "wg0-key"
mount_path = "/etc/wireguard/wg0.key"
sub_path = "wg0.key"
}
volume_mount {
name = "wg0-conf"
mount_path = "/etc/wireguard/wg0.conf"
sub_path = "wg0.conf"
}
volume_mount {
name = "wg0-conf"
mount_path = "/etc/wireguard/setup-firewall.sh"
sub_path = "setup-firewall.sh"
}
security_context {
capabilities {
add = ["NET_ADMIN", "SYS_MODULE"]
}
}
}
container {
name = "prometheus-exporter"
image = "mindflavor/prometheus-wireguard-exporter"
image_pull_policy = "IfNotPresent"
command = ["prometheus_wireguard_exporter", "-a", "true", "-v", "true", "-n", "/etc/wireguard/wg0.conf"]
volume_mount {
name = "wg0-conf"
mount_path = "/etc/wireguard/wg0.conf"
sub_path = "wg0.conf"
}
security_context {
capabilities {
add = ["NET_ADMIN"]
}
}
port {
container_port = 9586
protocol = "TCP"
}
}
volume {
name = "wg0-key"
secret {
secret_name = "wg0-key"
}
}
volume {
name = "wg0-conf"
config_map {
name = "wg0-conf"
}
}
}
}
}
}
resource "kubernetes_service" "wireguard" {
metadata {
name = "wireguard"
namespace = "wireguard"
annotations = {
"metallb.universe.tf/allow-shared-ip" = "shared"
}
labels = {
"app" = "wireguard"
}
}
spec {
type = "LoadBalancer"
external_traffic_policy = "Cluster"
selector = {
app = "wireguard"
}
port {
port = "51820"
protocol = "UDP"
}
}
}
resource "kubernetes_service" "wireguard_exporter" {
metadata {
name = "wireguard-exporter"
namespace = "wireguard"
labels = {
"app" = "wireguard-exporter"
}
}
spec {
selector = {
app = "wireguard"
}
port {
port = "9102"
target_port = "9586"
}
}
}
# resource "kubernetes_deployment" "webui" {
# metadata {
# name = "webui"
# namespace = "wireguard"
# labels = {
# app = "webui"
# }
# # annotations = {
# # "configmap.reloader.stakater.com/reload" = "wg0-conf"
# # }
# annotations = {
# "reloader.stakater.com/search" = "true"
# }
# }
# spec {
# replicas = 1
# selector {
# match_labels = {
# app = "webui"
# }
# }
# template {
# metadata {
# labels = {
# app = "webui"
# }
# }
# spec {
# init_container {
# image = "busybox"
# name = "setup-config"
# command = ["/bin/sh", "-c", "cat /config/config.json && cp /config/config.json /cache/config.json"]
# # command = ["/bin/sh", "-c", "cat /config/config.json /cache/config.json; tail -f /dev/null"]
# volume_mount {
# name = "config"
# mount_path = "/config/config.json"
# sub_path = "config.json"
# }
# volume_mount {
# name = "cache"
# mount_path = "/cache"
# }
# }
# container {
# image = "embarkstudios/wireguard-ui:latest"
# name = "webui"
# image_pull_policy = "IfNotPresent"
# lifecycle {
# }
# command = ["/wireguard-ui"]
# args = [
# "--data-dir",
# "/data",
# "--log-level",
# "debug",
# "--wg-endpoint",
# "vpn.viktorbarzin.me:51820",
# "--wg-dns",
# "10.0.20.1",
# "--wg-allowed-ips",
# "0.0.0.0/0",
# "--client-ip-range",
# "10.3.3.10/24",
# "--no-nat",
# ]
# port {
# container_port = 8080
# protocol = "TCP"
# }
# security_context {
# capabilities {
# add = ["NET_ADMIN", "SYS_MODULE", "CAP_SYS_ADMIN"]
# }
# }
# # volume_mount {
# # name = "wg0-key"
# # mount_path = "/data/config.json"
# # sub_path = "config.json"
# # }
# volume_mount {
# name = "cache"
# mount_path = "/data"
# }
# # volume_mount {
# # name = "wg0-key"
# # mount_path = "/etc/wireguard/wg0.key"
# # sub_path = "wg0.key"
# # }
# }
# # volume {
# # name = "wg0-conf"
# # config_map {
# # name = "wg0-conf"
# # }
# # }
# volume {
# name = "config"
# secret {
# secret_name = "wg0-key"
# items {
# key = "wg-ui-config"
# path = "config.json"
# }
# }
# }
# volume {
# name = "cache"
# empty_dir {
# }
# }
# }
# }
# }
# }
# resource "kubernetes_service" "webui" {
# metadata {
# name = "webui"
# namespace = "wireguard"
# labels = {
# app = "webui"
# }
# }
# spec {
# type = "ClusterIP"
# port {
# name = "http"
# protocol = "TCP"
# port = 80
# target_port = "8080"
# }
# selector = {
# app = "webui"
# }
# }
# }
# resource "kubernetes_ingress_v1" "webui" {
# metadata {
# name = "webui-ingress"
# namespace = "wireguard"
# annotations = {
# "kubernetes.io/ingress.class" = "nginx"
# }
# }
# spec {
# tls {
# hosts = ["wg.viktorbarzin.me"]
# secret_name = var.tls_secret_name
# }
# rule {
# host = "wg.viktorbarzin.me"
# http {
# path {
# path = "/"
# backend {
# service {
# name = "webui"
# port {
# number = 80
# }
# }
# }
# }
# }
# }
# }
# }