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How do you list registered clusters in ArgoCD? Do workloads keep running if the ArgoCD hub goes down? How do you remove a cluster from ArgoCD? What is the difference between the in-cluster and external cluster destinations? How are cluster credentials secured in ArgoCD? How do you target a subset of clusters (e.g., only production)? How do cluster labels help manage a fleet? What connectivity does the hub need to spoke clusters? How do you deploy region-specific configuration to clusters? What is the difference between targeting a cluster by server URL vs name?
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ArgoCD › Multi-cluster

What are the architectural models for multi-cluster ArgoCD (hub-spoke vs per-cluster)?

Intermediate

Answer

Hub-and-spoke runs one central ArgoCD (the hub) managing many remote clusters (spokes)—simple governance, single pane of glass, but the hub is critical and needs network/credentials to all clusters. The alternative runs an ArgoCD per cluster—more isolation and resilience, but more instances to operate. Choice depends on scale, security, and blast-radius tolerance.
Real-world example A company uses hub-and-spoke for central control, accepting that the hub cluster must reach every spoke's API.

Common follow-ups: What are hub-spoke trade-offs? | When run ArgoCD per cluster?

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All 29 Multi-cluster questions