App-of-Apps Pattern in ArgoCD: Scalable GitOps Architecture
You start with one ArgoCD Application. Then five. Then twenty. Before you know it, you’re managing hundreds of Applications, and the manual overhead is killing your productivity. The App-of-Apps pattern solves this: one root application that manages all other applications. This is how I structure every GitOps repository, and it scales from homelab to enterprise. The Problem: Application Sprawl When you first adopt ArgoCD, you create Applications manually: kubectl apply -f apps/frontend.yaml kubectl apply -f apps/backend.yaml kubectl apply -f apps/database.yaml # ... repeat for every service This works for small deployments. But it creates problems: ...