Update docs.

docs/guides/security.md

@@ -0,0 +1,46 @@
+# Security
+
+## Best Practices
+
+1. **Keep Everything Updated**:
+   - Regularly update K3s
+   - Update all infrastructure components
+   - Keep application images up to date
+
+2. **Network Security**:
+   - Use internal services whenever possible
+   - Limit exposed services to only what's necessary
+   - Configure your home router's firewall properly
+
+3. **Access Control**:
+   - Use strong passwords for all services
+   - Implement a secrets management strategy
+   - Rotate API tokens and keys regularly
+
+4. **Regular Audits**:
+   - Review running services periodically
+   - Check for unused or outdated deployments
+   - Monitor resource usage for anomalies
+
+## Security Scanning (Future Implementation)
+
+Tools to consider implementing:
+
+1. **Trivy** for image scanning:
+   ```bash
+   # Example Trivy usage (placeholder)
+   trivy image <your-image>
+   ```
+
+2. **kube-bench** for Kubernetes security checks:
+   ```bash
+   # Example kube-bench usage (placeholder)
+   kubectl apply -f https://raw.githubusercontent.com/aquasecurity/kube-bench/main/job.yaml
+   ```
+
+3. **Falco** for runtime security monitoring:
+   ```bash
+   # Example Falco installation (placeholder)
+   helm repo add falcosecurity https://falcosecurity.github.io/charts
+   helm install falco falcosecurity/falco --namespace falco --create-namespace
+   ```