Migrating from DigitalOcean to Hetzner: From $1,432 to $233 With Zero Downtime
6 hours ago
- #Server Migration
- #Zero Downtime
- #Cost Optimization
- Migrated from DigitalOcean to Hetzner, reducing monthly costs from $1,432 to $233, saving $14,388 annually with zero downtime.
- Used a six-phase strategy: full stack installation, web file cloning via rsync, MySQL replication, DNS TTL reduction, Nginx reverse proxy conversion, and DNS cutover.
- Employed mydumper/myloader for efficient MySQL data migration and set up master-slave replication for real-time sync, addressing version upgrade issues from MySQL 5.7 to 8.0.
- Scripted DNS updates, Nginx configuration changes, and webhook updates to automate the migration and ensure reliability across 30 databases and 34 sites.
- Ended with a more powerful server: 48 cores/96 threads CPU, 256 GB DDR5 RAM, and 1.92 TB NVMe storage, all while handling live traffic without disruption.