Environment
- Shared hosting with no control over the underlying resources
- Manual file-level deployments directly to production
- TLS certificates renewed by hand and occasionally missed
- Backups provided by the host with no verified restore path
Retail / e-commerce
Cloud VPS migration for business applications
Customer-facing applications ran on an under-specified shared host with unpredictable performance and no maintenance window. Deployments were manual and there was no staging environment.
- Cloud VPS
- Linux
- Nginx
- Automated backups
Architecture
- Right-sized VPS instances derived from measured traffic and resource usage
- Separate staging environment mirroring production configuration
- Reverse proxy with automated certificate issuance and renewal
- Scheduled off-instance backups with retention and pruning rules
- Firewall policy with administrative access restricted to known networks
Implementation
- Application dependencies documented and reproduced on the new platform
- Data pre-seeded and kept in sync ahead of the cutover window
- DNS time-to-live reduced in advance so the switch was fast and reversible
- Cutover limited to the final delta sync, traffic switch and validation checklist
- Legacy host retained read-only until sign-off
Outcome
- Performance is now a function of resources the business controls
- Changes are validated in staging before they reach customers
- Certificate expiry is automated and monitored rather than remembered
- Restores have been tested from the new backup target
Scope the work before you commit budget
Send the environment details and get an engineered proposal with assumptions, risks and a rollback path.