BUILDING & MANAGING INTERNAL PLATFORMS Internal platforms are a great way to enable an outstanding developer experience. GitOps is the best way to enable this platform approach. These two sentences are a a concise summary of the key ideas in this paper. In the last few years, the role of the developer has changed drastically. The “benevolent dictator for life” of any given codebase is being replaced forward. Instead of a single developer who owns the codebase making all the decisions, a group of developers works together to make a product. In this situation, developer experience is of utmost importance

Workflows Where does GitOps fit in? Operations via Pull Request Summary 14 Chapter 2–Tools of the Trade Infrastructure as Code History of Infrastructure as Code Challenges Other GitOps Tools PipeCD Keptn Pulumi Kubernetes Operator Summary 18 Chapter 3–Templating Everything in Git Kustomize Helm Operators Combining Tools Summary Application Developer Other Boundaries GitOps Repo Example Conclusion 33 Chapter 6–CI/CD with GitOps CI and CD Can Be Decoupled Integrating Synchronous and Asynchronous Tools

increased, and the focus has shifted rightly so to improving the developer experience. In the last few years, the number of tools and systems needed to manage version control, configuration management the developer as they now must oversee more and more components of the application. Ideally, the developer focuses mainly on delivering business value via code. Thus, to improve developer experience infrastructure and application configuration changes. In an ideal world, this approach allows the developer to focus on working and pushing code to Git, and then, further deployment and tweaks would be

“you build it, you own it” development process requires tools that developers know and understand. GitOps is our name for how we use developer tooling to drive operations. GitOps is a way to do Continuous to your infrastructure when commits are pushed and approved in 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 pipeline, GitOps gives you the freedom to choose the best tools for the different parts of your CICD pipeline. You can select a set of tools from the open source ecosystem or from closed source or depending

GitOps 2.0 THE FUTURE OF DEVOPS Table of Contents 1. The Pains of GitOps 1.0 1.1. GitOps tools 1.2. Splitting CI and CD 1.3. Promotion of releases between environments 1.4. Modeling multi-environment within GitOps tools at any moment. Those continuously compare the current state with the desired state to ensure the system is running like expected. The most popular GitOps tools today are ​Flux organizations are adopting GitOps tools, it is clear that a set of best practices are needed in several areas that are not currently covered by the existing tools. In this guide, we will describe

stability, security and compliance – and it does all this without the need for developers to learn new tools. On the pages that follow, we’ll explain exactly what GitOps is and how you can use it to deliver Another key concept behind GitOps is the fact that Kubernetes and its ecosystem of cloud native tools are declarative, as opposed to imperative, which allows for configuration to be treated as code. Business Performance: The Facts 6 No new tools to learn Because Git lies at the centre of the delivery pipeline, developers do not need to learn to use new tools. They can work in a world they know, using

applied with standard Openshift and k8s tooling Day 2 operations : All changes triggered from Git Tools of the Trade https://argoproj.github.io/argo-cd https://kustomize.io/ Argo CD Kustomize Argo CD way ● Synchronizes cluster state with git repos ● Works with a variety of Kubernetes deployment tools including: ○ Helm ○ Kustomize ○ Ksonnet/Jsonnet ○ Directories of yaml ● It is not a CI tool secrets ● Order dependent deployments ● Non-declarative requirements ● Integrating with CI/CD tools (Jenkins, OpenShift Pipelines, etc) ○ Does CI/CD or Argo CD manage deployments? Approach 1: Multiple

Knowing the philosophy of GitOps, what your current deployment strategy looks like, and essential tools are key to implementing a successful GitOps strategy. In this ebook you will learn: • a refresher security. Push vs. Pull-Based Architecture Kubernetes Cluster Git Repository Bi-Directional gRPC Developer gRPC REST API | 09 3 KEY ELEMENTS FOR YOUR GITOPS STRATEGY Copyright 2024 Akamai Technologies Kubernetes environment. Push vs. Pull-Based Architecture Push-based architecture also relies on CI/CD tools like Jenkins to deploy code changes from the Git repository but lacks the automation benefits of

move to DevOps requires technical and cultural changes at an organizational level. A new set of tools that can abstract the complexity of the steps previously handled by large teams must be adopted. Simplify Kubernetes operations using developer tools GitOps helps DevOps teams be more autonomous and productive by enabling continuous deployment through the tools they work in everyday. Changes are cloud-native tools that are declarative and can be treated as code. The system’s entire infrastructure must be described in Git. After a PR is merged, the changes are automatically applied using tools like

Delivery A key DevOps principle for automation, consistency and reliability 4 What is GitOps? An developer-centric approach to Continuous Delivery and infrastructure operation Treat everything as code Review changes beforehand, detect configuration drifts, and take action Enhanced Security Familiar tools and Git workflows from application development teams Standard Workflow Multi-cluster consistency Deploy Stage Deploy Prod OpenShift Build Automate building container images using Kubernetes tools OpenShift Pipelines Kubernetes-native on-demand delivery pipelines OpenShift GitOps Declarative