ArgoCD

ArgoCD is the leading GitOps continuous deployment tool for Kubernetes, and it represents the most important architectural shift in deployment workflows of the past five years. The GitOps model — where a Git repository is the single source of truth for cluster state, and ArgoCD continuously reconciles the cluster toward that state — eliminates an entire class of configuration drift and deployment bugs. The operational model: define your desired Kubernetes manifests in Git, point ArgoCD at the repo, and it handles sync, rollback, and health status automatically. Used by 61% of organizations running Kubernetes in production (CNCF Survey 2025). The most common mistake: not using ApplicationSets to templatize multi-cluster deployments.