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OVO Tech Blog

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We made AWS cheaper, safer and more accountable - here’s how!

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A high level overview of the problems we found with our AWS account architecture and how we solved them…

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Production Engineering devops aws networking

Using Route53 Resolver Rules

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At OVO we have many cloud projects which need connectivity to services in our datacenter. We have VPNs setup to securely route connections between projects and on-prem services. One issue with this configuration is name resolution within AWS VPCs. The DHCP opt…

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Orchestrating Serverless - a step in the right direction

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This blog post looks at our experience of using AWS Step Functions to help us migrate customers into a new OVO energy platform.…

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Complexity in Infrastructure as Code

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As a high level concept Infrastructure as Code (IaC) is a well established practice that is helping to improve the consistency and quality of infrastructure deployments. However IaC, just like all other code, can be overly complex, use poor conventions, and can build tech debt.…

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Introducing blue-green deployment for Hippo CMS

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As a growing company, we have decided to switch from externally managed CMS solution towards our own internally managed one. In this article, we will take you through our short journey of providing zero-downtime releases for our CMS in the world, where mainten…