with it. Christian has built out a lot of the foundation of GitOps. If you asked me for the best source of GitOps knowledge, I’d say you’ve found them already. —Chris Short Co-chair, OpenGitOps/GitOps third principle states: Software agents automatically pull the desired state declarations from the source. This principle is where GitOps starts to differentiate itself from a traditional event-driv- en deployment of your application be imperative in your CI/CD platform, it can be declar- ative based on a source of truth. Based on a reconciliation loop, the GitOps controller makes changes to the cluster by

Native applications that unifies Deployment, Monitoring and Management. It works by using Git as a source of truth for declarative infrastructure and applications. Automated CI/CD pipelines roll out changes Git. It also makes use of diff tools to compare the actual production state with what’s under source control and alerts you when there is a divergence. The ultimate goal of GitOps is to speed up different parts of your CICD pipeline. You can select a set of tools from the open source ecosystem or from closed source or depending on your use case, you may even combine them. The most difficult part

concepts behind GitOps are quite straight-forward: ● Infrastructure as Code: Git is always the source of truth on what happens in the system ● Code changes always go through an automated process artifacts and normally does not touch (or know about) source code. But in most cases, in order to run unit tests, you need access to the source code of the application. The current crop of GitOps tools tools cannot run unit/integration tests. That would require visibility in the source code along with all the testing frameworks and libraries needed for the tests. This means that you are forced to

Removing OpenShift GitOps Operator from your cluster Legal Notice Copyright © 2024 Red Hat, Inc. The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution–Share trademark of Joyent. Red Hat is not formally related to or endorsed by the official Joyent Node.js open source or commercial project. The OpenStack ® Word Mark and OpenStack logo are either registered trademarks/service

GitOps 工作负载 在基础架构节点上运行 GitOps control plane 工作负载 法律通告 法律通告 Copyright © 2024 Red Hat, Inc. The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution–Share trademark of Joyent. Red Hat is not formally related to or endorsed by the official Joyent Node.js open source or commercial project. The OpenStack ® Word Mark and OpenStack logo are either registered trademarks/service

GitOps 1.13 了解 OpenShift GitOps OpenShift GitOps 简介 法律通告 法律通告 Copyright © 2024 Red Hat, Inc. The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution–Share trademark of Joyent. Red Hat is not formally related to or endorsed by the official Joyent Node.js open source or commercial project. The OpenStack ® Word Mark and OpenStack logo are either registered trademarks/service

teams to improve overall organisational productivity and development velocity.” James Governor, — Source Redmonk.com Executive summary Adopting the platform approach alone is not enough. Organizations observability this is increasingly important. Good DX allows for shift left.” — James Governor, Source Redmonk.com 2021 State of DevOps report The 2021 State of DevOps report released by Puppet and friction. The internal platform approach Use of internal platforms and level of DevOps evolution Source: Puppet While there are many ways to deliver resources and tools to application developers, the

Continuous Delivery and infrastructure operation Treat everything as code Git is the single source of truth Operations through Git workflows 5 GitOps Workflow a declarative approach to application teams Standard Workflow Multi-cluster consistency 7 Source Git Repository Image Registry CI The GitOps Application Delivery Model 8 Source Git Repository Config Git Repository Image Registry CD The GitOps Application Delivery Model Pull Request Push Pull Push Pull Pull Request 9 Source Git Repository Image Registry CI The GitOps Application Delivery Model Config Git Repository

around Git, i.e., the version control ecosystem. The focus is entirely on keeping Git as a single source of truth for infrastructure and application configuration changes. In an ideal world, this approach entire state of your cluster kept under source control, diff tools and synchronization agents can compare what’s running in production with what’s under source control — and when a divergence is detected KUBERNETES REFCARD | SEPTEMBER 2022 3 SINGLE SOURCE OF TRUTH In the GitOps world, version control systems (VCS) like Git should be the only source of truth. Whatever changes one wants to perform

as the source code management tool for managing the infrastructure code. In other words, GitOps is an evaluation of infrastructure as code and DevOps practices which uses Git as the single source of truth All the declarative states are stored in the version-controlled system, which acts as the single source of truth. With this version-controlled approach, all the system infrastructure changes are available productivity The source-controlled, validated infrastructure reduces configuration errors that can occur during deployments, saving time for Ops teams to diagnose and fix those errors. Besides, source control allows