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Production Engineering devops kubernetes helm

Writing a Helm Plugin

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If you’re using Helm as your Kubernetes package manager, it’s likely the command-line tool already fulfils your use-cases, as it ships with a lot of functionality. One thing that’s missing, though, is snapshot/restore. Existing commands such as install, delete…

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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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IaC Production Engineering cloudformation devops

Infrastructure as Code: Imperative vs Declarative

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There are many good articles available that discuss in depth the difference between imperative and declarative style programming. Here I'm going to take a look at a very narrow subset of this debate, that of Infrastructure as Code, (Iac), and hopefully show of…

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IaC Production Engineering terraform devops sre meetup

Keeping Deployments Simple

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SRE Meetup 5th December 2018 I gave a talk at the last Bristol SRE meetup earlier this month which this time was held at OVO's Bristol office. The theme I presented on was the importance of simplicity. In particular I wanted to look closely at deployment tooli…

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Production Engineering devops security infosec devsecops

Mantle - Secure Convenience

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Here at OVO we make use of managed services that allow us to run less software ourselves, and play pivotal roles in achieving CI/CD; services which are firmly placed on our Paved Road. Two of the most prevalent managed services we use are GitHub and CircleCI.…