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.

terraform/apps/dev-01/apps.tf

@@ -21,10 +21,10 @@ module "dns" {
   zones               = local.zones
 }
 
-module "reverse_proxy" {
-  source = "../../modules/apps/nginx-reverse-proxy"
+module "proxy" {
+  source = "../../modules/utils/proxy"
 
-  services = local.reverse_proxy_services
+  services = local.proxy_services
   streams  = local.streams
 }
 
@@ -42,9 +42,23 @@ module "nextcloud" {
 }
 
 module "comfyui_proxy" {
-  source = "../../modules/apps/wol_proxy"
+  source = "../../modules/utils/wol_proxy"
 
   upstream   = local.comfyui_proxy
   proxy_port = local.comfyui_proxy.port
   namespace  = "comfyui"
 }
+
+module "prometheus" {
+  source = "../../modules/utils/prometheus"
+
+  persistent_folder = "${local.persistent_folder}/monitoring"
+  config            = file("${path.module}/resources/prometheus.yml")
+}
+
+module "grafana" {
+  source = "../../modules/apps/grafana"
+
+  persistent_folder = "${local.persistent_folder}/monitoring"
+  fqdn              = local.grafana_fqdn
+}