Zero Downtime on SystemsGolivehttps://systemsgolive.com/tags/zero-downtime/Recent content in Zero Downtime on SystemsGoliveHugo -- gohugo.ioen© 2026 systemsgolive.com and Mickael Asghar. All rights reserved.Sun, 23 Nov 2025 11:44:31 +0100Migrating from ANS to Cloudflare Load Balancer: Zero-Downtime DNS Cutover with Pre-Configuration Strategyhttps://systemsgolive.com/post/ans-to-cloudflare-lb-migration-zero-downtime/Sun, 23 Nov 2025 11:44:31 +0100https://systemsgolive.com/post/ans-to-cloudflare-lb-migration-zero-downtime/ How we migrated our production care management platform from ANS to Cloudflare Load Balancer — eliminating manual SSL certificate management that had caused a past outage, replacing an EOL HAProxy instance, and achieving zero downtime through a dummy hostname pre-configuration strategy and a planned 45-minute DNS cutover window.