# Phase 5: Network Simplification

## Agent Assignment
**Primary Agent:** infra-agent
**Duration:** 15 minutes

## Prerequisites
- Phase 1 (Docker Compose) must be complete

## Objectives
1. Reduce networks from 5 to 3
2. Remove platform and egress networks
3. Update service network assignments
4. Maintain proper isolation

## Step-by-Step Instructions

### Step 1: Update docker-compose.yml Networks Section

**Remove these networks:**
```yaml
# DELETE:
platform:
  driver: bridge
egress:
  driver: bridge
```

**Keep these networks:**
```yaml
networks:
  frontend:
    driver: bridge
  backend:
    driver: bridge
  database:
    driver: bridge
```

### Step 2: Update Service Network Assignments

```yaml
mvp-traefik:
  networks:
    - frontend

mvp-frontend:
  networks:
    - frontend
    - backend  # Needs to reach backend API

mvp-backend:
  networks:
    - backend
    - database  # Needs to reach postgres and redis

mvp-postgres:
  networks:
    - database

mvp-redis:
  networks:
    - database

mvp-platform:
  networks:
    - backend    # Reached by mvp-backend
    - database   # Reaches postgres and redis
```

### Step 3: Restart Services
```bash
docker compose down
docker compose up -d
```

### Step 4: Verify Network Configuration
```bash
# List networks
docker network ls | grep motovaultpro
# Expected: 3 networks (frontend, backend, database)

# Test connectivity
docker compose exec mvp-backend ping -c 1 mvp-postgres
docker compose exec mvp-backend ping -c 1 mvp-platform
# Expected: Successful
```

## Validation Criteria
- [ ] Only 3 networks exist (frontend, backend, database)
- [ ] All services can communicate as needed
- [ ] No platform or egress networks
- [ ] Traefik routing still works

## Update EXECUTION-STATE.json
```json
{
  "phases": {"5": {"status": "completed", "validation_passed": true}}
}
```