What is Argo CD?

Argo CD is a Kubernetes-native continuous delivery tool that follows a GitOps model: it pulls the desired application state from Git and keeps your cluster in sync with it. In simple terms, you change configuration in Git, and Argo CD helps apply and maintain that state in Kubernetes.

How it works

  • You store manifests, Helm charts, or Kustomize configs in a Git repository.
  • Argo CD watches that repo and compares it with what is actually running in the cluster.
  • If the cluster drifts from Git, Argo CD can show the difference and optionally sync it back.

Why people use it

  • It gives teams a clear, auditable deployment workflow because Git becomes the source of truth.
  • It helps manage deployments across multiple Kubernetes clusters.
  • It supports declarative configuration, which makes rollbacks and change tracking easier.

Current context

Argo CD has continued to evolve, and a CNCF announcement in March/April 2025 highlighted a major v3 update focused on automation, performance, and security, with release-candidate testing available and general availability expected shortly after. The Argo Project also posted Argo CD 2.14 release notes in late 2024, showing active ongoing development.

In one sentence

Argo CD is a GitOps deployment controller for Kubernetes that keeps your live applications aligned with what is declared in Git.

TL;DR: Argo CD = Kubernetes deployment automation driven by Git, with continuous syncing and drift detection.

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