Add FAQ about why we need kube-controller-manager.

Signed-off-by: RainbowMango <qdurenhongcai@gmail.com>
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RainbowMango 2022-04-02 10:57:50 +08:00
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@ -11,4 +11,12 @@ Both of them are used to hold the propagation declaration, but they have differe
## What is the difference between 'Push' and 'Pull' mode of a cluster?
Please refer to [Overview of Push and Pull](./userguide/cluster-registration.md#overview-of-cluster-mode).
Please refer to [Overview of Push and Pull](./userguide/cluster-registration.md#overview-of-cluster-mode).
## Why Karmada requires `kube-controller-manager`?
`kube-controller-manager` is composed of a bunch of controllers, Karmada inherits some controllers from it
to keep a consistent user experience and behavior.
It's worth noting that not all controllers are needed by Karmada, for the recommended controllers please
refer to [Recommended Controllers](./userguide/configure-controllers.md#recommended-controllers).