structure across 10,000 developers plus is a major challenge.” — Amr Abdelhalem, Fidelity Investments Why a platform approach? The platform approach is being adopted by every kind of organization, from every platform building is Git. Git is widely used in software delivery, and its success is the reason why platforms like GitHub and GitLab are household names in every software delivery team today. Git has declarative systems, every part of the system first needs to be defined before it can be declared. This is why it is important to take the time to transpose the entire system from various disparate pieces to Git

of declarative configurations in Kubernetes. Cloud-Native DevOps So if GitOps isn’t anything new, why are we hearing so much about it now? Much like how the Agile Manifesto changed the game for developers version history. The canonical example of the “versioned and immutable” principle is Git, which is why it’s the first element in the term GitOps. Git’s store is versioned and immutable because each change shown in Figure 1-1, traditional CI/CD is very linear, basing each stage on previous ones. That’s why the term commonly used for the CI/CD build/test/deploy process is a pipeline. It can provide integration

to application delivery A A A What you want (desired state) What you have (current state) CD Why GitOps? Reliably and consistently configure multiple Kubernetes clusters and deployment 6 Capturing Serverless Runs serverless with no CI/CD engine to manage and maintain DevOps GENERAL DISTRIBUTION Why Cloud-Native CI/CD? 18 Traditional CI/CD Cloud-Native CI/CD Designed for Virtual Machines Designed

automation. GitOps is a natural evolution of Agile and DevOps methodologies What is GitOps? 3 Why GitOps? It takes weeks (or months!) to provision an environment The application behaves different Namespace: dev bases: - ../../base resources: - namespace.yaml patchesStrategicMerge: - patch-route.yaml Why Kustomize? ● Eliminates needless duplication of yaml ● Enables reuse through customization (patching)

Use Elastic Enterprise Search with GitHub Kubernetes Guide, a tutorial series Automation In DevOps: Why & How To Automate DevOps Practices What Is Cloud Native DevOps?

the core principles of GitOps, • how your deployment strategy affects your GitOps plan, and • why observability is a critical part of GitOps and how it differs from monitoring Introduction | 04

audit ● Redundancy and High Availability But it does (did) pose challenges... What is Multicluster? Why? Target Audience What to expect Istio Multicluster First Demo About GitOps Second Demo What’s next

your pipeline. SEPARATION OF PRIVILEGES GitOps separates CI from CD. This is one reason as to why it is a more secure method for deploying applications to Kubernetes. The table below shows how

At Codefresh, we believe that this vision is the next big thing for deployments and this is why we think it deserves the name of GitOps 2.0. GitOps 2.0 with Codefresh and ArgoCD In