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terraform devops IaC Production Engineering

Blue Green Infrastructure

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Introduction In the computing world, blue green is an established model of deployment usually associated with software applications. The idea being you can run two versions of code side-by-side and switch traffic to a new version without downtime, leaving the…

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terraform gcp IaC

#122: Exploring Terraform through a Github issue

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Terraform removes the ACL giving access to an object in a GCP bucket when the contents of the object is updated. I decided to find out why.…

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technology terraform IaC Architecture kubernetes helm gcp monorepo golang

Monorepo Microservices in Go

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A retrospective of one team's first large scale cloud project, using Golang, IaC and Kubernetes.…

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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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IaC Production Engineering terraform cloudformation devops

When was the last time you deleted your infrastructure?

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This is a question that every team should be asking themselves. There is no correct answer, but you should understand why it is an important question and how the answer affects your team.…