ArgoCD Basics

What is ArgoCD?

ArgoCD is a declarative, GitOps continuous delivery tool for Kubernetes. It follows the GitOps pattern of using Git repositories as the source of truth for defining the desired application state.

With ArgoCD, application definitions, configurations, and environments are stored in Git. ArgoCD automates the synchronization of the desired state in Git with the actual state running in your Kubernetes clusters.

ArgoCD Application CRD

An ArgoCD Application is a Kubernetes Custom Resource Definition (CRD) that defines the source of your application manifests and the destination cluster where they should be deployed.

apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: guestbook
  namespace: argocd
spec:
  project: default
  source:
    repoURL: https://github.com/example/guestbook.git
    targetRevision: HEAD
    path: k8s/
  destination:
    server: https://kubernetes.default.svc
    namespace: default
  syncPolicy:
    automated:
      prune: true
      selfHeal: true

Sync Policy Options

The syncPolicy section controls how ArgoCD synchronizes your application:

automated: Enables automatic sync when the Git repository changes
prune: Removes resources that no longer exist in Git
selfHeal: Reverts manual changes made directly to the cluster

ArgoCD Sync Loop

Rebel Training: Autonomous Navigation

Convoy Sigma's Autonomous Navigation system pre-programs rebel routes through UTA-controlled space. Master ArgoCD's GitOps patterns across four tiers to keep your fleet on course.

T1 — Recall

T2 — Build

T3 — Order

T4 — Debug

★ Did you know?

Argo CD is built on GitOps: Git is the single source of truth, and Argo CD continuously reconciles the cluster to match. Turn on auto-sync and self-heal, and it will not only apply changes from Git but also undo any manual drift someone applies directly to the cluster.