How to Implement GitOps on Kubernetes Using Argo CD

A hands-on tutorial for implementing a full GitOps workflow on Kubernetes using Argo CD, GitHub Actions, and the Argo CD Image Updater. Covers the pull vs. push model distinction, installing and accessing Argo CD, setting up a GitHub Actions CI pipeline to build and push Docker images, defining Argo CD Application manifests with automated sync and self-healing, and configuring the Image Updater with Kustomize write-back to automatically update image tags in Git on every new build. The result is a zero-touch deployment loop where a git push triggers the entire build-tag-deploy cycle without manual kubectl commands.