How Flux uses a Kubernetes cluster to manage applications in the same cluster or in other clusters

[yanghengtai]

Does Multi-Tenancy (and “Multi-everything”)
Flux uses true Kubernetes RBAC via impersonation and supports multiple Git repositories. Multi-cluster infrastructure and apps work out of the box with Cluster API: Flux can use one Kubernetes cluster to manage apps in either the same or other clusters, spin up additional clusters themselves, and manage clusters including lifecycle and fleets.

I would like to ask how to achieve the Flux mentioned on the official website that can control the management and release of more clusters by controlling one cluster? I did not see any relevant operation documents on the official website.

[stefanprodan]

See here an example of how to setup Flux on a management cluster to control other clusters https://github.com/fluxcd/flux2-hub-spoke-example

To create clusters with Flux, you would need to use a Kubernetes ClusterAPI provider, see https://cluster-api.sigs.k8s.io

For an overview of the Flux architecture see my post here: https://fluxcd.control-plane.io/guides/flux-architecture/