Add custom error pages and Nginx configuration for proxy module

- Introduced custom HTML error pages for various HTTP status codes (400, 401, 403, 404, 408, 429, 500, 502, 503, 504) in the proxy module.
- Created a .gitignore file to exclude non-HTML files in the error resources directory.
- Updated Nginx configuration to serve custom error pages for upstream errors.
- Added new Nginx configuration templates for handling HTTP and stream protocols.
- Implemented Wireguard configuration templates and associated variables for secure connections.
- Established Kubernetes resources for Stunnel and Wireguard, including deployment, service accounts, and config maps.
- Defined variables for the Stunnel and Wireguard modules to facilitate configuration.
- Created a new Wol Proxy module with Kubernetes resources for deployment and service management.
This commit is contained in:
2025-10-02 00:19:01 +02:00
parent 4d00986273
commit e6a3f3affd
62 changed files with 1517 additions and 99 deletions
@@ -0,0 +1,17 @@
locals {
app_version = var.tag
data_folder = "${var.persistent_folder}/prometheus"
prometheus_config = coalesce(var.config, file("${path.module}/resources/default.yml"))
prometheus_config_checksum = md5(local.prometheus_config)
prometheus_rules = yamlencode({
groups = [
{
name = "custom-rules"
rules = var.rules
}
]
})
prometheus_rules_checksum = md5(local.prometheus_rules)
}
@@ -0,0 +1,5 @@
resource "kubernetes_namespace" "monitoring" {
metadata {
name = "prometheus"
}
}
@@ -0,0 +1,216 @@
resource "kubernetes_service_account" "prometheus" {
metadata {
name = "prometheus"
namespace = kubernetes_namespace.monitoring.metadata[0].name
}
}
resource "kubernetes_cluster_role" "prometheus" {
metadata {
name = "prometheus"
}
rule {
api_groups = [""]
resources = ["nodes", "nodes/proxy", "services", "endpoints", "pods"]
verbs = ["get", "list", "watch"]
}
rule {
api_groups = ["extensions"]
resources = ["ingresses"]
verbs = ["get", "list", "watch"]
}
rule {
api_groups = ["networking.k8s.io"]
resources = ["ingresses"]
verbs = ["get", "list", "watch"]
}
rule {
non_resource_urls = ["/metrics"]
verbs = ["get"]
}
}
resource "kubernetes_cluster_role_binding" "prometheus" {
metadata {
name = "prometheus"
}
role_ref {
api_group = "rbac.authorization.k8s.io"
kind = "ClusterRole"
name = kubernetes_cluster_role.prometheus.metadata[0].name
}
subject {
kind = "ServiceAccount"
name = kubernetes_service_account.prometheus.metadata[0].name
namespace = kubernetes_namespace.monitoring.metadata[0].name
}
}
resource "kubernetes_config_map" "prometheus" {
metadata {
name = "prometheus-server-conf"
namespace = kubernetes_namespace.monitoring.metadata[0].name
labels = {
name = "prometheus-server-conf"
}
}
data = {
"prometheus.rules" = local.prometheus_rules
"prometheus.yml" = local.prometheus_config
}
}
resource "kubernetes_deployment" "prometheus" {
metadata {
name = "prometheus"
namespace = kubernetes_namespace.monitoring.metadata[0].name
labels = {
app = "prometheus"
}
}
spec {
replicas = 1
strategy {
type = "Recreate"
}
selector {
match_labels = {
app = "prometheus"
}
}
template {
metadata {
labels = {
app = "prometheus"
}
annotations = {
"checksum/config" = local.prometheus_config_checksum
"checksum/rules" = local.prometheus_rules_checksum
}
}
spec {
service_account_name = kubernetes_service_account.prometheus.metadata[0].name
container {
name = "prometheus"
image = "prom/prometheus:${local.app_version}"
args = [
"--config.file=/etc/prometheus/prometheus.yml",
"--storage.tsdb.path=/prometheus/",
"--storage.tsdb.retention.time=${var.retention_time}",
]
port {
name = "http-prometheus"
container_port = 9090
}
security_context {
run_as_user = 1000
run_as_group = 1000
run_as_non_root = true
allow_privilege_escalation = false
}
volume_mount {
name = "prometheus-config-volume"
mount_path = "/etc/prometheus/"
}
volume_mount {
name = "prometheus-storage-volume"
mount_path = "/prometheus"
}
}
volume {
name = "prometheus-config-volume"
config_map {
name = kubernetes_config_map.prometheus.metadata[0].name
}
}
volume {
name = "prometheus-storage-volume"
host_path {
path = local.data_folder
type = "DirectoryOrCreate"
}
}
}
}
}
}
resource "kubernetes_service" "prometheus" {
metadata {
name = "prometheus"
namespace = kubernetes_namespace.monitoring.metadata[0].name
annotations = {
"prometheus.io/scrape" = "true"
"prometheus.io/port" = "9090"
}
}
spec {
selector = {
app = "prometheus"
}
type = "ClusterIP"
port {
port = 9090
protocol = "TCP"
target_port = "http-prometheus"
}
}
}
# resource "kubernetes_ingress_v1" "prometheus" {
# metadata {
# name = "prometheus-ui"
# namespace = kubernetes_namespace.monitoring.metadata[0].name
# annotations = {
# "kubernetes.io/ingress.class" = var.ingress_class
# }
# }
# spec {
# rule {
# host = var.fqdn
# http {
# path {
# path = "/"
# path_type = "Prefix"
# backend {
# service {
# name = kubernetes_service.prometheus.metadata[0].name
# port {
# number = 8080
# }
# }
# }
# }
# }
# }
# dynamic "tls" {
# for_each = local.tls_crt_data != "" && local.tls_key_data != "" ? [1] : []
# content {
# hosts = [var.fqdn]
# secret_name = local.tls_secret_name
# }
# }
# }
# }
@@ -0,0 +1,9 @@
terraform {
required_version = "~>1.8"
required_providers {
kubernetes = {
source = "hashicorp/kubernetes"
version = "2.36.0"
}
}
}
@@ -0,0 +1,38 @@
global:
scrape_interval: 5s
evaluation_interval: 5s
rule_files:
- /etc/prometheus/prometheus.rules
scrape_configs:
- job_name: kubernetes-nodes-cadvisor
scrape_interval: 10s
scrape_timeout: 10s
scheme: https # remove if you want to scrape metrics on insecure port
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
insecure_skip_verify: true
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
kubernetes_sd_configs:
- role: node
relabel_configs:
- action: labelmap
regex: __meta_kubernetes_node_label_(.+)
# Only for Kubernetes ^1.7.3.
# See: https://github.com/prometheus/prometheus/issues/2916
- target_label: __address__
replacement: kubernetes.default.svc:443
- source_labels: [__meta_kubernetes_node_name]
regex: (.+)
target_label: __metrics_path__
replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
metric_relabel_configs:
- action: replace
source_labels: [id]
regex: '^/machine\.slice/machine-rkt\\x2d([^\\]+)\\.+/([^/]+)\.service$'
target_label: rkt_container_name
replacement: "${2}-${1}"
- action: replace
source_labels: [id]
regex: '^/system\.slice/(.+)\.service$'
target_label: systemd_service_name
replacement: "${1}"
@@ -0,0 +1,126 @@
global:
scrape_interval: 5s
evaluation_interval: 5s
rule_files:
- /etc/prometheus/prometheus.rules
alerting:
alertmanagers:
- scheme: http
static_configs:
- targets:
- "alertmanager.monitoring.svc:9093"
scrape_configs:
- job_name: "node-exporter"
kubernetes_sd_configs:
- role: endpoints
relabel_configs:
- source_labels: [__meta_kubernetes_endpoints_name]
regex: "node-exporter"
action: keep
- job_name: "kubernetes-apiservers"
kubernetes_sd_configs:
- role: endpoints
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
relabel_configs:
- source_labels:
[
__meta_kubernetes_namespace,
__meta_kubernetes_service_name,
__meta_kubernetes_endpoint_port_name,
]
action: keep
regex: default;kubernetes;https
- job_name: "kubernetes-nodes"
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
kubernetes_sd_configs:
- role: node
relabel_configs:
- action: labelmap
regex: __meta_kubernetes_node_label_(.+)
- target_label: __address__
replacement: kubernetes.default.svc:443
- source_labels: [__meta_kubernetes_node_name]
regex: (.+)
target_label: __metrics_path__
replacement: /api/v1/nodes/$${1}/proxy/metrics
- job_name: "kubernetes-pods"
kubernetes_sd_configs:
- role: pod
relabel_configs:
- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
action: keep
regex: true
- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
action: replace
target_label: __metrics_path__
regex: (.+)
- source_labels:
[__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
action: replace
regex: ([^:]+)(?::\d+)?;(\d+)
replacement: $1:$2
target_label: __address__
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- source_labels: [__meta_kubernetes_namespace]
action: replace
target_label: kubernetes_namespace
- source_labels: [__meta_kubernetes_pod_name]
action: replace
target_label: kubernetes_pod_name
- job_name: "kube-state-metrics"
static_configs:
- targets: ["kube-state-metrics.kube-system.svc.cluster.local:8080"]
- job_name: "kubernetes-cadvisor"
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
kubernetes_sd_configs:
- role: node
relabel_configs:
- action: labelmap
regex: __meta_kubernetes_node_label_(.+)
- target_label: __address__
replacement: kubernetes.default.svc:443
- source_labels: [__meta_kubernetes_node_name]
regex: (.+)
target_label: __metrics_path__
replacement: /api/v1/nodes/$${1}/proxy/metrics/cadvisor
- job_name: "kubernetes-service-endpoints"
kubernetes_sd_configs:
- role: endpoints
relabel_configs:
- source_labels:
[__meta_kubernetes_service_annotation_prometheus_io_scrape]
action: keep
regex: true
- source_labels:
[__meta_kubernetes_service_annotation_prometheus_io_scheme]
action: replace
target_label: __scheme__
regex: (https?)
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
action: replace
target_label: __metrics_path__
regex: (.+)
- source_labels:
[__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
action: replace
target_label: __address__
regex: ([^:]+)(?::\d+)?;(\d+)
replacement: $1:$2
- action: labelmap
regex: __meta_kubernetes_service_label_(.+)
- source_labels: [__meta_kubernetes_namespace]
action: replace
target_label: kubernetes_namespace
- source_labels: [__meta_kubernetes_service_name]
action: replace
target_label: kubernetes_name
@@ -0,0 +1,34 @@
variable "tag" {
description = "Prometheus image tag"
type = string
default = "latest"
}
variable "retention_time" {
description = "Prometheus data retention time"
type = string
default = "15d"
}
variable "rules" {
description = "Prometheus alerting rules"
type = list(object({
alert = string
expr = string
for = string
labels = map(string)
annotations = map(string)
}))
default = []
}
variable "config" {
description = "Custom Prometheus configuration in YAML format"
type = string
default = ""
}
variable "persistent_folder" {
description = "The path to the persistent folder"
type = string
}