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DOCKER.md

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+# Drachtio Server with Docker Compose
+
+This setup provides a complete drachtio server deployment using Docker Compose.
+
+## Quick Start
+
+1. Start the drachtio server:
+   ```bash
+   docker-compose up -d
+   ```
+
+2. Check the logs:
+   ```bash
+   docker-compose logs -f drachtio
+   ```
+
+3. Verify the server is running:
+   ```bash
+   docker-compose ps
+   ```
+
+## Configuration
+
+The main configuration file is located at `config/drachtio.conf.xml`. You can modify:
+
+- **Admin port**: Default is 9022 (configurable in `admin` section)
+- **Admin secret**: Default is "cymru" (change this for production!)
+- **SIP ports**: Default is 5060/5061 for UDP/TCP/TLS
+- **Logging levels**: Configure debug verbosity
+- **CDR generation**: Enable call detail records
+- **Spam protection**: Block known spammer User-Agents
+
+## Ports
+
+The following ports are exposed:
+
+- `5060/udp`: SIP UDP
+- `5060/tcp`: SIP TCP
+- `5061/tcp`: SIP TLS
+- `9022/tcp`: Admin API
+
+## Connecting to Drachtio
+
+Once running, you can connect to drachtio using Node.js:
+
+```javascript
+const Srf = require('drachtio-srf');
+const srf = new Srf();
+
+srf.connect({
+  host: 'localhost',
+  port: 9022,
+  secret: 'cymru'
+});
+```
+
+## Maintenance
+
+- **View logs**: `docker-compose logs -f drachtio`
+- **Stop server**: `docker-compose down`
+- **Restart server**: `docker-compose restart`
+- **Update image**: `docker-compose pull && docker-compose up -d`
+
+## Production Considerations
+
+1. **Security**: Change the default admin secret
+2. **TLS**: Configure TLS certificates for SIP over TLS
+3. **Access Control**: Restrict admin access to specific IPs
+4. **CDRs**: Configure CDR export to Homer or Splunk
+5. **Monitoring**: Enable Prometheus metrics for monitoring