How to Install Argo CD on Kubernetes with Helm and Understand Every Core Component

Introduction If you are getting started with GitOps on Kubernetes , Argo CD is one of the first tools you will run into. It is widely used, has a clear operating model, and fits well into platform engineering workflows where you want Kubernetes clusters to continuously reconcile themselves to the state stored in Git. But for many engineers, the first Argo CD installation feels a little opaque. You run a Helm install, a set of pods appears, and suddenly your cluster has a server, a repo server, a controller, Redis, secrets, ConfigMaps, and sometimes extra components like Dex and Notifications. If you are new to Argo CD, it is not always obvious which component does what , which ones are required , and how they work together . This guide is a practical engineering walkthrough for beginners and intermediate platform engineers . You will learn: what Argo CD is and where it fits in a Kubernetes platform how to install Argo CD with the official Helm chart what each major Argo CD component do