roa2web-service-auto/deployment/windows/README.md

# ROA2WEB - Windows Deployment Package

Complete deployment solution for ROA2WEB on Windows Server with IIS and Oracle Database.

---

## 📂 Package Contents

```
deployment/windows/
├── config/                          # Configuration files
│   ├── web.config                   # IIS configuration (URL Rewrite, reverse proxy)
│   └── .env.production.windows      # Environment variables template
│
├── scripts/                         # PowerShell automation scripts
│   ├── Install-ROA2WEB.ps1         # Initial installation
│   ├── Deploy-ROA2WEB.ps1          # Deploy updates
│   ├── Build-Frontend.ps1          # Build Vue.js frontend (run locally)
│   ├── Start-ROA2WEB.ps1           # Start backend service
│   ├── Stop-ROA2WEB.ps1            # Stop backend service
│   └── Restart-ROA2WEB.ps1         # Restart backend service
│
├── docs/                            # Documentation
│   └── WINDOWS_DEPLOYMENT.md        # Complete deployment guide
│
└── README.md                        # This file
```

---

## 🎯 Quick Start

### Prerequisites

- **Windows Server** 2016+ (or Windows 10/11 Pro)
- **IIS** installed
- **Oracle Database** (local or network-accessible)
- **PowerShell 5.1+**
- **Administrator privileges**

### Installation Steps

#### 1. Build Frontend (on development machine)

```bash
# On WSL/Linux/Mac
cd roa2web/deployment/windows/scripts
./Build-Frontend.ps1

# This creates: ./deploy-package/
```

#### 2. Transfer to Server

Copy the entire project to Windows Server:
```
C:\roa2web\deployment\windows\
```

#### 3. Run Installation

```powershell
# On Windows Server (PowerShell as Administrator)
cd C:\roa2web\deployment\windows\scripts

# Install everything
.\Install-ROA2WEB.ps1
```

This will:
- ✅ Install Python 3.11+
- ✅ Install NSSM (service manager)
- ✅ Install IIS URL Rewrite and ARR
- ✅ Create directory structure
- ✅ Install Python dependencies
- ✅ Create Windows Service
- ✅ Configure IIS website

#### 4. Configure Application

```powershell
# Copy and edit environment file
Copy-Item C:\inetpub\wwwroot\roa2web\backend\config\.env.production.windows `
          C:\inetpub\wwwroot\roa2web\backend\.env

# Edit with your values
notepad C:\inetpub\wwwroot\roa2web\backend\.env
```

**Required settings:**

Configure these variables in `.env`:
- Database credentials (user, password, host, port, SID)
- JWT secret key for authentication
- Other application-specific settings

Example structure:
```env
ORACLE_USER=CONTAFIN_ORACLE
ORACLE_HOST=localhost
ORACLE_PORT=1521
ORACLE_SID=ROA
# Add password and JWT secret here
```

#### 5. Deploy Application Files

```powershell
# Deploy frontend and backend
.\Deploy-ROA2WEB.ps1 -SourcePath "C:\path\to\deploy-package"
```

#### 6. Verify Installation

```powershell
# Check service
Get-Service ROA2WEB-Backend

# Test backend
Invoke-WebRequest http://localhost:8000/health

# Open application
Start-Process "http://localhost"
```

---

## 🔄 Update Workflow

For deploying updates to existing installation:

**1. Build on development machine:**
```bash
cd roa2web/deployment/windows/scripts
./Build-Frontend.ps1 -OutputPath "./deploy-$(date +%Y%m%d)"
```

**2. Transfer to server:**
```powershell
Copy-Item .\deploy-20250118 -Destination C:\Temp\roa2web-deploy -Recurse
```

**3. Deploy on server:**
```powershell
cd C:\inetpub\wwwroot\roa2web\deployment\windows\scripts
.\Deploy-ROA2WEB.ps1 -SourcePath "C:\Temp\roa2web-deploy"
```

---

## 🔧 Management Commands

```powershell
# Start backend service
.\Start-ROA2WEB.ps1

# Stop backend service
.\Stop-ROA2WEB.ps1

# Restart backend service
.\Restart-ROA2WEB.ps1

# View logs
Get-Content C:\inetpub\wwwroot\roa2web\logs\backend-stdout.log -Tail 50 -Wait

# Check service status
Get-Service ROA2WEB-Backend

# Check IIS website
Get-Website ROA2WEB
```

---

## 📊 Architecture

### Components

| Component | Type | Port | Purpose |
|-----------|------|------|---------|
| **Frontend** | IIS Static Files | 80/443 | Vue.js SPA |
| **Backend** | Windows Service | 8000 | FastAPI API |
| **Database** | Oracle | 1521 | Data storage |
| **Reverse Proxy** | IIS URL Rewrite | - | API routing |

### Network Flow

```
Client → IIS (port 80) → [web.config URL Rewrite]
                            ├─ /api/* → Backend Service (localhost:8000)
                            │              ↓
                            │           Oracle DB (localhost:1521)
                            └─ /* → Static Files (Vue.js)
```

---

## 📋 Directory Structure After Installation

```
C:\inetpub\wwwroot\roa2web\
├── backend\                    # FastAPI application
│   ├── app\
│   ├── requirements.txt
│   ├── .env                   # Configuration
│   └── logs\
│
├── frontend\                   # Vue.js static files
│   ├── index.html
│   ├── assets\
│   └── web.config
│
├── logs\                       # Service logs
│   ├── backend-stdout.log
│   └── backend-stderr.log
│
└── backups\                    # Automatic backups
    └── backup-YYYYMMDD-HHMMSS\
```

---

## 🆘 Troubleshooting

### Service won't start

```powershell
# Check logs
Get-Content C:\inetpub\wwwroot\roa2web\logs\backend-stderr.log -Tail 50

# Test manually
cd C:\inetpub\wwwroot\roa2web\backend
python -m uvicorn app.main:app --host 127.0.0.1 --port 8000
```

### Frontend not loading

```powershell
# Restart IIS
iisreset

# Check website status
Get-Website ROA2WEB
Start-Website ROA2WEB
```

### API calls failing (502/504)

```powershell
# Check backend service
Get-Service ROA2WEB-Backend
.\Restart-ROA2WEB.ps1

# Test backend directly
Invoke-WebRequest http://localhost:8000/health
```

### Database connection issues

```powershell
# Test Oracle connection
sqlplus CONTAFIN_ORACLE/password@localhost:1521/ROA

# Check Oracle service
Get-Service Oracle*

# Check .env configuration
Get-Content C:\inetpub\wwwroot\roa2web\backend\.env | Select-String ORACLE
```

---

## 📖 Full Documentation

For complete documentation, see:
- **[WINDOWS_DEPLOYMENT.md](docs/WINDOWS_DEPLOYMENT.md)** - Comprehensive deployment guide
- **[.env.production.windows](config/.env.production.windows)** - Configuration reference

---

## 🔑 Key Features

✅ **Simple Installation** - One PowerShell script installs everything
✅ **Minimal Dependencies** - Only Python + IIS (already on Windows Server)
✅ **Easy Replication** - Same scripts work on all servers
✅ **Automatic Backups** - Every deployment creates a backup
✅ **Windows Service** - Backend runs as service with auto-start/restart
✅ **Production Ready** - Optimized for performance and reliability

---

## 📊 System Requirements

| Resource | Minimum | Recommended |
|----------|---------|-------------|
| **OS** | Windows Server 2016 | Windows Server 2019+ |
| **RAM** | 4 GB | 8 GB |
| **CPU** | 2 cores | 4 cores |
| **Disk** | 10 GB free | 20 GB free |
| **Network** | 100 Mbps | 1 Gbps |

---

## 🔐 Security Recommendations

1. **Generate Strong JWT Secret:**
   ```powershell
   -join ((65..90) + (97..122) + (48..57) | Get-Random -Count 32 | % {[char]$_})
   ```

2. **Secure .env File:**
   ```powershell
   icacls C:\inetpub\wwwroot\roa2web\backend\.env /inheritance:r /grant:r Administrators:F
   ```

3. **Enable HTTPS:** ⭐ **RECOMMENDED**
   ```powershell
   # Quick setup with automated script
   cd C:\roa2web\deployment\windows\scripts
   .\Enable-HTTPS.ps1

   # For detailed instructions, see:
   # docs/HTTPS_SETUP.md
   ```

   **What it does:**
   - Creates/installs SSL certificate
   - Configures HTTPS binding (port 443)
   - Enables HTTP to HTTPS redirect
   - Activates HSTS (Strict Transport Security)

   **Access your application securely:**
   - `https://10.0.20.36/roa2web` (or your domain)

4. **Regular Updates:**
   - Keep Windows Server updated
   - Update Python packages monthly
   - Monitor security advisories
   - Renew SSL certificates before expiry

---

## 📞 Support

For issues or questions:
1. Check logs: `C:\inetpub\wwwroot\roa2web\logs\`
2. Review [WINDOWS_DEPLOYMENT.md](docs/WINDOWS_DEPLOYMENT.md)
3. Contact: development-team@your-company.com

---

## 📝 Version History

| Version | Date | Changes |
|---------|------|---------|
| 2.0.0 | 2025-01-18 | Initial Windows deployment package |

---

*ROA2WEB - Modern ERP Reports Application*
*Windows Server Deployment Package v2.0.0*