<h2>Zero-Downtime Deployment Best Practices</h2><p>Continuous integration and continuous deployment (CI/CD) pipelines allow engineering teams to ship features rapidly without risking live uptime. This guide details how to implement zero-downtime container switchover using health-checked candidate testing and automated fallback mechanisms.</p><h3>Deployment Guidelines</h3><ul><li><strong>Atomic Switchover:</strong> Test candidate containers in an isolated network before binding to public ports.</li><li><strong>SSL & Nginx:</strong> Reverse proxy configurations for secure TLS termination.</li><li><strong>Automated Rollback:</strong> Instant recovery if health probes detect unexpected crashes.</li></ul>