Kubernetes 应用负载管理 Kruise

Kruise 是 OpenKruise 项目的核心，包含一组控制器扩展和完善 [Kubernetes 核心控制器](https://kubernetes.io/docs/concepts/overview/what-is-kubernetes/) 的应用负载管理能力。 Kruise 提供三种应用负载控制器： * [Advanced StatefulSet](https://github.com/openkruise/kruise/blob/master/docs/concepts/astatefulset/README.md): An enhanced version of default [StatefulSet](https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/) with extra functionalities such as `inplace-update`, sharding by namespace. * [BroadcastJob](https://github.com/openkruise/kruise/blob/master/docs/concepts/broadcastJob/README.md): A job that runs pods to completion across all the nodes in the cluster. * [SidecarSet](https://github.com/openkruise/kruise/blob/master/docs/concepts/sidecarSet/README.md): A controller that injects sidecar container into the pod spec based on selectors.