Zero-downtime Azure migration for a retailer
Ageing on-premise servers moved to Azure with automated deployments, monitoring and a tested disaster-recovery plan — without a minute of downtime.
0
Hours of downtime
−30%
Monthly hosting cost
12
Services migrated
<5 min
From commit to live
The challenge
What wasn't working.
The online shop and stock systems ran on servers nearing end of life. Releases were manual and risky, and a single hardware failure could take sales offline.
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Unsupported hardware and growing security risk
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Manual releases only possible late at night
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No tested backup or recovery plan
The solution
What we built.
We designed a secure Azure foundation and moved each service across while the old systems kept running.
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Design 01
Landing zone, networking, identity and environments as code.
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Migrate 02
Services moved one by one, running side by side before switching over.
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Automate 03
CI/CD pipelines so every release is tested and repeatable.
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Operate 04
Dashboards, alerts, backups and a disaster-recovery drill.
Built with
The technology.
- Azure
- Terraform
- Docker
- Kubernetes
- GitHub Actions
- Grafana
“We switched over on a Tuesday afternoon and our customers never noticed. That's exactly what we wanted.”
