# Martinhal Contact Management System - Docker Setup

## 🐳 Docker Installation (Recommended)

### Prerequisites
- Docker installed: https://docs.docker.com/get-docker/
- Docker Compose installed (usually comes with Docker Desktop)

### Quick Start with Docker

1. **Make sure you have all files in the same directory:**
```
martinhal-contacts/
├── Dockerfile
├── docker-compose.yml
├── .dockerignore
├── index.html
├── credentials.json
├── server.js
├── package.json
└── contacts_data.json (will be created automatically)
```

2. **Build and start the container:**
```bash
docker-compose up -d
```

3. **Access the application:**
Open your browser and go to: `http://localhost:8000`

4. **Stop the application:**
```bash
docker-compose down
```

5. **View logs:**
```bash
docker-compose logs -f
```

### Docker Commands Reference

**Start the application:**
```bash
docker-compose up -d
```

**Stop the application:**
```bash
docker-compose down
```

**Restart the application:**
```bash
docker-compose restart
```

**View logs:**
```bash
docker-compose logs -f martinhal-contacts
```

**Rebuild after code changes:**
```bash
docker-compose down
docker-compose build
docker-compose up -d
```

**Access container shell:**
```bash
docker exec -it martinhal-contacts sh
```

## 📦 Data Persistence

Docker volumes ensure your data persists:
- **contacts_data.json** - Your contact database (automatically backed up)
- **backups/** - Directory for backup files

Even if you delete and recreate containers, your data remains safe!

## 🔄 Updating the Application

1. Update your files (index.html, server.js, etc.)
2. Rebuild and restart:
```bash
docker-compose down
docker-compose build
docker-compose up -d
```

## 🔐 Current Passwords

- **Frontend Password**: `ZaAhdf4h8k79598pHD5H3`
- **Backend Username**: `admin`
- **Backend Password**: `yt33PdH9WgAGR5z4SFDf6`

## 🛠 Troubleshooting

**Port 8000 already in use:**
Edit `docker-compose.yml` and change the port mapping:
```yaml
ports:
  - "3000:8000"  # Access via http://localhost:3000
```

**Container won't start:**
```bash
docker-compose logs martinhal-contacts
```

**Remove everything and start fresh:**
```bash
docker-compose down
docker system prune -a
docker-compose up -d
```

## 📋 Alternative: Manual Setup (No Docker)

If you don't want to use Docker:

### Step 1: Install Node.js
Download from: https://nodejs.org/

### Step 2: Install Dependencies
```bash
npm install
```

### Step 3: Start Server
```bash
npm start
```

### Step 4: Open Browser
```
http://localhost:8000
```

## 🎯 Production Deployment

For production deployment with Docker:

1. **Use environment variables for sensitive data**
2. **Set up HTTPS with reverse proxy (nginx)**
3. **Configure automated backups**
4. **Set resource limits in docker-compose.yml**

Example production docker-compose.yml:
```yaml
version: '3.8'
services:
  martinhal-contacts:
    build: .
    container_name: martinhal-contacts
    ports:
      - "8000:8000"
    volumes:
      - ./contacts_data.json:/app/contacts_data.json
      - ./backups:/app/backups
    restart: always
    environment:
      - NODE_ENV=production
    deploy:
      resources:
        limits:
          cpus: '0.5'
          memory: 512M
```

## ✅ Benefits of Docker

- ✅ **Consistent environment** - Works the same everywhere
- ✅ **Easy deployment** - One command to start
- ✅ **Isolated** - Doesn't interfere with other apps
- ✅ **Easy updates** - Rebuild and restart
- ✅ **Data persistence** - Your data is safe
- ✅ **Easy backups** - Just copy the volume

That's it! Your Martinhal Contact Management System is now running in Docker! 🎉