---
name: vm-migration
description: Migracao zero-downtime de workloads CWP e EasyPanel para VMs Proxmox com safety nets e rollback procedures.
---

# VM Migration

Migracao zero-downtime de workloads CWP e EasyPanel para Proxmox VMs seguindo Migration-Plan-OptionA com safety nets e rollback procedures.

## Quando Usar

- Migrar servidores CWP para VMs Proxmox
- Migrar containers EasyPanel para VMs Proxmox
- Executar Migration-Plan-OptionA (3 fases)
- Migracao phased com validation periods

## Quando Nao Usar

- Migracoes non-CWP/EasyPanel (criar plan especifico)
- Ambientes teste/dev (menos rigor)
- Single-server setups (nao cluster)

## Sintaxe

```bash
/vm-migration <source-type> <source-host> [--phase 1|2|3] [--batch-size 5] [--validate-days 7]
```

## Exemplos

```bash
# Fase 1: EasyPanel migration (batch 5 containers)
/vm-migration easypanel easy.descomplicar.pt --phase 1 --batch-size 5

# Fase 2: CWP migration com 7 dias validation
/vm-migration cwp server.descomplicar.pt --phase 2 --validate-days 7

# Fase 3: Apenas confirmar (sem migracao)
/vm-migration finalize --phase 3
```

---

## Knowledge Sources (Consultar SEMPRE)

```bash
mcp__notebooklm__notebook_query \
  notebook_id:"276ccdde-6b95-42a3-ad96-4e64d64c8d52" \
  query:"proxmox migration cwp easypanel docker lxc zero downtime"
```

Hub Docs: `Hub/05-Projectos/Cluster Descomplicar/Planning/Migration-Plan-OptionA.md`

---

## Migration-Plan-OptionA Overview

**Timeline:** 8 semanas | **Strategy:** Phased migration com safety nets | **Rollback:** Disponivel em cada fase

```
Week 1-2: FASE 1 - EasyPanel Migration
+-- Backup EasyPanel -> PBS
+-- Create Docker VM Proxmox
+-- Migrate containers (batch 5-10)
+-- DNS cutover gradual
+-- Validation + Rollback window

Week 3-6: FASE 2 - CWP Migration
+-- 7 dias safety net (server intacto)
+-- Create AlmaLinux 8 VM
+-- Migrate CWP accounts (batch)
+-- Validate sites + email
+-- DNS cutover (TTL 300s)
+-- Rollback ate Day 7

Week 7-8: FASE 3 - Cluster Formation
+-- Prepare server.descomplicar.pt as Node A
+-- Form cluster (pvecm)
+-- Configure HA groups
+-- Live migration tests
+-- Cleanup legacy servers
```

---

## Workflow Pre-Migration (Todas Fases)

### 1. Backup Strategy Validation

```bash
# Verificar PBS configurado
pvesm status | grep pbs

# Criar backup point actual
vzdump --storage pbs-main --all 1 --mode snapshot
```

Garantir 3-2-1 compliance: original + PBS Node B + PBS Node A remote sync.

### 2. Documentar Estado Actual

```bash
# CWP: Listar contas
/scripts/list_accounts > /tmp/cwp-accounts.txt

# EasyPanel: Listar services
curl -s http://localhost:3000/api/trpc/projects.list | jq > /tmp/easypanel-services.json

# DNS TTLs (baixar para 300s ANTES de migration)
```

### 3. Comunicar Clientes (se downtime esperado)

- Email 48h antes
- Status page update
- Janela de manutencao agendada

---

## Fases Detalhadas

| Fase | Detalhes | Referencia |
|------|----------|------------|
| Fase 1: EasyPanel (Week 1-2) | 108 containers Docker -> VM Proxmox | [references/fase1-easypanel.md](references/fase1-easypanel.md) |
| Fase 2: CWP (Week 3-6) | 39 vhosts CWP -> VM AlmaLinux 8 | [references/fase2-cwp.md](references/fase2-cwp.md) |
| Fase 3: Cluster (Week 7-8) | 2-node cluster, HA, cleanup | [references/fase3-cluster.md](references/fase3-cluster.md) |
| Troubleshooting | Problemas comuns e resolucao | [references/troubleshooting.md](references/troubleshooting.md) |

---

## Backup Strategy Resumo

| Fase | Locais Backup | RPO | RTO |
|------|---------------|-----|-----|
| Fase 1 | Original + PBS + VPS | 1h | 2-4h |
| Fase 2 | Server intacto + PBS + /mnt/migration/ | 1h | 2-4h |
| Fase 3 | Node A + Node B + PBS dual | 1h | 2-4h |

---

## Anti-Patterns

| Anti-Pattern | Risco | Alternativa |
|--------------|-------|-------------|
| Migrar tudo de uma vez | Downtime total | Batches de 5-10 |
| Nao baixar TTL antes | DNS lento a propagar | TTL 300s 24h antes |
| Apagar server antigo cedo | Sem rollback | Manter 7 dias |
| Sem backup pre-migration | Perda dados | vzdump + 3-2-1 |

---

## References

- **Migration Plan:** Hub/05-Projectos/Cluster Descomplicar/Planning/Migration-Plan-OptionA.md
- **NotebookLM:** 276ccdde-6b95-42a3-ad96-4e64d64c8d52
- **Guia Hub:** Guia-Definitivo-Proxmox-Hetzner.md (Modulo 4: Workloads)
- **Desk CRM:** Projecto #65, Tarefa #1712