Workshop completo: aulas 08-10 com Talos, n8n e GitLab na Hetzner

Aula 08 - Cluster Kubernetes HA:
- Setup interativo com OpenTofu para Talos na Hetzner
- CCM, CSI Driver, Cluster Autoscaler, Metrics Server
- NGINX Ingress com LoadBalancer (HTTP/HTTPS/SSH)

Aula 09 - n8n na Hetzner:
- Deploy via Helm com PostgreSQL e Redis
- Suporte multi-tenant com add-client.sh
- Integração com Hetzner CSI para volumes persistentes

Aula 10 - GitLab na Hetzner:
- Setup agnóstico: CloudFlare (trusted proxies) ou Let's Encrypt
- Anti-affinity para distribuir webservice/sidekiq em nós diferentes
- Container Registry e SSH via TCP passthrough
- Documentação do erro 422 e solução com trustedCIDRsForXForwardedFor

Melhorias gerais:
- READMEs atualizados com arquitetura e troubleshooting
- Scripts cleanup.sh para todas as aulas
- CLAUDE.md atualizado com contexto do projeto

aula-08/outputs.tf

@@ -26,8 +26,13 @@ output "network_cidr" {
 
 # Control Plane Information
 output "control_plane_ip" {
-  description = "Public IP address of the control plane"
-  value       = hcloud_floating_ip.control_plane.ip_address
+  description = "Public IP address of the control plane (LB or Floating IP)"
+  value       = local.cluster_endpoint_ip
+}
+
+output "load_balancer_ip" {
+  description = "Public IP of the Load Balancer (if enabled)"
+  value       = var.enable_loadbalancer ? hcloud_load_balancer.cluster[0].ipv4 : null
 }
 
 output "control_plane_private_ips" {
@@ -70,22 +75,23 @@ output "talosconfig_path" {
 # API Endpoints
 output "kubernetes_api_endpoint" {
   description = "Kubernetes API server endpoint"
-  value       = "https://${hcloud_floating_ip.control_plane.ip_address}:6443"
+  value       = "https://${local.cluster_endpoint_ip}:6443"
 }
 
 output "talos_api_endpoint" {
   description = "Talos API endpoint for management"
-  value       = "https://${hcloud_floating_ip.control_plane.ip_address}:50000"
+  value       = "https://${local.cluster_endpoint_ip}:50000"
 }
 
 # Cost Information
 output "estimated_monthly_cost" {
-  description = "Estimated monthly cost for the infrastructure (EUR)"
+  description = "Estimated monthly cost for the infrastructure (USD)"
   value = {
-    control_plane = 3 * 3.79  # 3x CAX11
-    worker        = 1 * 3.79  # 1x CAX11
-    floating_ip   = 3.00      # Floating IPv4
-    total         = (4 * 3.79) + 3.00  # ~€18.16
+    control_plane = local.control_plane_count * 4.59
+    worker        = 1 * 4.59
+    load_balancer = var.enable_loadbalancer ? 5.99 : 0
+    floating_ip   = var.enable_loadbalancer ? 0 : 3.29
+    total         = (local.control_plane_count + 1) * 4.59 + (var.enable_loadbalancer ? 5.99 : 3.29)
   }
 }
 
@@ -104,16 +110,15 @@ output "connection_instructions" {
 
     2. Configure talosctl:
        export TALOSCONFIG=${local_sensitive_file.talosconfig.filename}
-       talosctl --nodes ${hcloud_floating_ip.control_plane.ip_address} health
+       talosctl --nodes ${local.cluster_endpoint_ip} health
 
     3. Access Kubernetes API:
-       ${"https://${hcloud_floating_ip.control_plane.ip_address}:6443"}
+       https://${local.cluster_endpoint_ip}:6443
 
     4. Nodes:
-       Control Plane: 3x CAX11 (ARM64)
+       Control Plane: ${local.control_plane_count}x CAX11 (ARM64)
        Workers: 1x CAX11 (ARM64)
-
-    5. Total Monthly Cost: ~€18/month
+       ${var.enable_loadbalancer ? "Load Balancer: LB11" : "Floating IP: IPv4"}
 
     ====================================
     EOT