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/config.tf

@@ -72,16 +72,31 @@ locals {
           type    = "CNAME"
           content = "dev-01.${local.lab_domain}."
         },
+        {
+          name    = "grafana"
+          type    = "CNAME"
+          content = "dev-01.${local.lab_domain}."
+        },
+        {
+          name    = "prometheus"
+          type    = "CNAME"
+          content = "dev-01.${local.lab_domain}."
+        },
         {
           name    = "game-01"
           type    = "A"
           content = "10.19.4.245"
         },
+        {
+          name    = "prod-01"
+          type    = "A"
+          content = "10.5.5.2"
+        },
       ]
     }
   ]
 
-  reverse_proxy_services = {
+  proxy_services = {
     "comfyui" = {
       http_port  = 8080
       https_port = 8443
@@ -102,14 +117,15 @@ locals {
 
   streams = {
     "dns" = {
-      port     = 53
-      upstream = "dns.dns.svc.cluster.local"
-      protocol = "udp"
+      port      = 53
+      host_port = 53
+      upstream  = "dns.dns.svc.cluster.local"
+      protocol  = "udp"
     }
   }
 
   ollama_proxy = {
-    enabled   = true
+    enabled = true
     mac     = "04:7c:16:d6:63:66"
     ip      = "10.19.4.106"
     port    = "11434"
@@ -117,10 +133,10 @@ locals {
   }
 
   comfyui_proxy = {
-    mac     = "04:7c:16:d6:63:66"
-    ip      = "10.19.4.106"
-    port    = "8188"
-    scheme  = "http"
+    mac    = "04:7c:16:d6:63:66"
+    ip     = "10.19.4.106"
+    port   = "8188"
+    scheme = "http"
   }
 
   scaleway_smtp_host = "smtp.tem.scw.cloud"
@@ -150,6 +166,17 @@ locals {
   backup_app_api_secret_key = data.terraform_remote_state.scaleway.outputs.backup_app_api_secret_key
   backup_app_api_access_key = data.terraform_remote_state.scaleway.outputs.backup_app_api_access_key
   mail_app_api_secret_key   = data.terraform_remote_state.scaleway.outputs.mail_app_api_secret_key
+
+  grafana_fqdn = "grafana.${local.lab_domain}"
+
+  remote_targets = {
+    "prometheus" = {
+      listen_port = 9090
+      target_host = "10.5.5.5"
+      target_port = 9090
+      protocol    = "TCP"
+    }
+  }
 }
 
 data "terraform_remote_state" "scaleway" {