feat(infraestrutura): adiciona plugin infraestrutura (agents, skills, knowledge e metadados do projeto)

infraestrutura/skills/proxmox-ha/references/fencing-configuration.md

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+# Fencing Configuration - Proxmox HA
+
+Configuracao detalhada de fencing devices (STONITH) para High Availability.
+
+---
+
+## Opcao A: Watchdog (Software Fencing)
+
+Mais simples, menos confiavel:
+
+```bash
+# Instalar watchdog em ambos nodes
+apt install watchdog
+
+# Load kernel module
+modprobe softdog
+
+# Auto-load on boot
+echo "softdog" >> /etc/modules
+
+# Configurar HA Manager para usar watchdog
+# (automatico quando HA activado)
+```
+
+## Opcao B: IPMI/iLO (Hardware Fencing)
+
+Mais confiavel, requer IPMI:
+
+```bash
+# Verificar IPMI disponivel
+ipmitool lan print
+
+# Configurar IPMI credentials (via BIOS ou ipmitool)
+
+# Configurar em Proxmox (Web UI):
+# Datacenter -> Fencing -> Add
+# Type: IPMI
+# IP: <node-ipmi-ip>
+# Username: admin
+# Password: <ipmi-pass>
+
+# Test
+fence_ipmilan -a <node-ipmi-ip> -l admin -p <pass> -o status
+```
+
+## Opcao C: Network Fencing (Menos Confiavel)
+
+Usar apenas se IPMI nao disponivel:
+
+```bash
+# SSH-based fencing (perigoso)
+# Depende de network estar up
+# Nao recomendado para production
+```
+
+## Recomendacao Cluster Descomplicar
+
+- **Inicio:** Watchdog (simple, funcional)
+- **Producao:** IPMI se hardware suporta
+- **Evitar:** Network fencing