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Kelsey Hightower How does GitOps work? Environment Configurations as Git repository Git changed how we collaborate, but declarative configuration is the key to dealing with infrastructure at scale, and sets the stage for the next generation of management tools. GitOps is the best thing since configuration as code.
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With great commit messages everybody can reproduce the thought process of changing infrastructure and also easily find examples of how to set up new systems. Using Git to store complete descriptions of your deployed infrastructure allows everybody in your team to check out its evolution over time.
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You can always check out the master branch and get a complete description of what is deployed where plus the complete history of every change ever made to the system.Īnd you get an audit trail of any changes in your system for free! Shared Knowledge in Teams With GitOps, every change to any environment must happen through the repository. Have you ever SSH’d into a server and wondered what’s running there? Kelsey Hightower Self-documenting Deployments Limit access and only use it for deployments when better tooling is not available. You don’t have to give your developers direct access to the environment. GitOps allows you to manage deployments completely from inside your environment.įor that, your environment only needs access to your repository and image registry. Alexis Richardson Easier Credential Management You can roll back & forth to any snapshot. The Git record is then not just an audit log but also a transaction log. This makes error recovery as easy as issuing a git revert and watching your environment being restored.
With GitOps you have a complete history of how your environment changed over time. Oh no! Your production environment is down! Weaveworks Easy and Fast Error Recovery When we say “high velocity” we mean that every product team can safely ship updates many times a day - deploy instantly, observe the results in real time, and use this feedback to roll forward or back. What is unique about GitOps is that you don’t have to switch tools for deploying your application.Įverything happens in the version control system you use for developing the application anyways. Okay, to be fair, probably every Continuous Deployment technology promises to make deploying faster and allows you to deploy more often. Kelsey Hightower Why should I use GitOps? Deploy Faster More Often GitOps: versioned CI/CD on top of declarative infrastructure. It’s like having cruise control for managing your applications in production.
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If you want to deploy a new application or update an existing one, you only need to update the repository - the automated process handles everything else. The core idea of GitOps is having a Git repository that always contains declarative descriptions of the infrastructure currently desired in the production environment and an automated process to make the production environment match the described state in the repository. It focuses on a developer-centric experience when operating infrastructure, by using tools developers are already familiar with, including Git and Continuous Deployment tools.
GitOps is a way of implementing Continuous Deployment for cloud native applications. Get it as a PDF or ePub, Kindle eBook, and paperback. We’ve just released our short book on GitOps. This site aggregates the essence of GitOps to help clear up the confusion about the topic. Since its inception in 2017 by Weaveworks, GitOps has caused quite some fuss on Twitter and KubeCon.
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