ArgoCD ApplicationSets

ApplicationSets extend Argo CD with a template-based approach to application deployment. Instead of manually creating 100 Argo CD Application manifests, you write one ApplicationSet with a generator, and it creates applications dynamically. Generators include: List (static values), Cluster (per cluster deployment), Git (per branch/tag), Matrix (combinations), and external APIs. This enables powerful multi-cluster, multi-tenant, and multi-environment deployments.