Add deployment setup guide

DEPLOYMENT_SETUP.md

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+# Deployment Setup Guide
+
+## GitHub Repository Setup
+
+### 1. Add SSH Key to GitHub
+
+1. Copy the SSH public key from the server:
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "cat ~/.ssh/id_rsa.pub"
+```
+
+2. Go to your GitHub repository: https://github.com/devops-stack/ring-0/settings/keys
+
+3. Click "Add deploy key"
+
+4. Paste the SSH key and give it a name (e.g., "Ubuntu Server Deploy Key")
+
+5. Check "Allow write access"
+
+6. Click "Add key"
+
+### 2. GitHub Secrets Setup
+
+Add these secrets to your GitHub repository (Settings → Secrets and variables → Actions):
+
+- `HOST`: `3.70.234.196`
+- `USERNAME`: `ubuntu`
+- `SSH_KEY`: Your private SSH key (the content of `~/.ssh/webserver`)
+- `PORT`: `22`
+
+### 3. Push Code to GitHub
+
+After adding the SSH key, run:
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "cd /opt/ring0/kernel-ai && git push -u origin main"
+```
+
+## Server Setup
+
+### 1. Enable Systemd Service
+
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "sudo systemctl enable kernel-ai"
+```
+
+### 2. Start the Service
+
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "sudo systemctl start kernel-ai"
+```
+
+### 3. Check Status
+
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "sudo systemctl status kernel-ai"
+```
+
+## Deployment Workflow
+
+### Manual Deployment
+
+Use the deployment script:
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "cd /opt/ring0/kernel-ai && ./deploy.sh"
+```
+
+Options:
+- `./deploy.sh pull` - Pull latest code
+- `./deploy.sh restart` - Restart services
+- `./deploy.sh status` - Show service status
+- `./deploy.sh logs` - Show recent logs
+- `./deploy.sh deploy` - Full deployment (default)
+
+### Automatic Deployment
+
+Once GitHub Actions is configured, every push to the `main` branch will automatically deploy to the server.
+
+## Project Structure
+
+```
+/opt/ring0/kernel-ai/
+├── app.py                 # Flask backend
+├── requirements.txt       # Python dependencies
+├── deploy.sh             # Deployment script
+├── .github/workflows/    # GitHub Actions
+├── static/               # Static files (CSS, JS, images)
+├── templates/            # HTML templates
+├── docs/                 # Documentation
+├── tests/                # Test files
+└── README.md            # Project documentation
+```
+
+## Troubleshooting
+
+### Check Service Logs
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "sudo journalctl -u kernel-ai -f"
+```
+
+### Check Nginx Logs
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "sudo tail -f /var/log/nginx/error.log"
+```
+
+### Restart Everything
+```bash
+ssh -i ~/.ssh/webserver ubuntu@3.70.234.196 "sudo systemctl restart kernel-ai && sudo systemctl reload nginx"
+```