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Kruise

English | 简体中文

Introduction

OpenKruise (official site: https://openkruise.io) is now hosted by the Cloud Native Computing Foundation (CNCF) as a Sandbox Level Project. It consists of several controllers which extend and complement the Kubernetes core controllers for workload and application management.

Key Features

• Typical Workloads

  Typical Workloads can help you manage applications of stateless, stateful and daemon.

  They all support not only the basic features which are similar to the original Workloads in Kubernetes, but also more advanced abilities like in-place update, configurable scale/upgrade strategies, parallel operations.

  • CloneSet for stateless applications
  • Advanced StatefulSet for stateful applications
  • Advanced DaemonSet for daemon applications

• Job Workloads

  • BroadcastJob for deploying jobs over specific nodes
  • AdvancedCronJob for creating Job or BroadcastJob periodically

• Sidecar container Management

  The Sidecar containers can be simply defined in the SidecarSet custom resource and Kruise will inject them into all Pods matched.

  The implementation is done by using Kubernetes mutating webhooks, similar to what istio does. However, it allows you to explicitly manage your own sidecars.

  • SidecarSet for defining and upgrading your own sidecars

• Multi-domain Management

  This can help you manage applications over nodes with multiple domains, such as different node pools, available zones, architectures(x86 & arm) or node types(kubelet & virtual kubelet).

  Here we provide two different ways:

  • WorkloadSpread for bypass distributing pods in workloads
  • UnitedDeployment, a new workload to manage multiple sub-workloads

• Enhanced Operations

  • Restart containers in a running pod
  • Download images on specific nodes

• Application Protection

  • Protect Kubernetes resources and applications' availability from the cascading deletion
  • PodUnavailableBudget for achieving the effect of preventing application disruption or SLA degradation

Quick Start

You can view the full documentation from the OpenKruise website.

• Install or upgrade Kruise with the stable version.
• Install or upgrade Kruise with the latest version including alpha/beta/rc.

Users

Registration: Who is using Kruise

• Alibaba Group, Ant Group, DouyuTV, Sto, Boss直聘
• hangyinxiaofei, vanyitech, Dmall, Bringg, 佐疆科技
• Lyft, Ctrip, 享住智慧, VIPKID, zhangmen
• xiaohongshu, bixin, 永辉科技中心, 跟谁学, 哈啰出行
• Spectro Cloud, ihomefnt, Arkane Systems, Deepexi, 火花思维
• OPPO, Suning.cn, joyy, Mobvista, 深圳凤凰木网络有限公司
• xiaomi, Netease, MeiTuan Finance, Shopee, Esign
• LinkedIn, 雪球, 兴盛优选, Wholee

Contributing

You are warmly welcome to hack on Kruise. We have prepared a detailed guide CONTRIBUTING.md.

Community

Active communication channels:

• Slack: OpenKruise channel (English)
• DingTalk：Search GroupID 23330762 (Chinese)
• WeChat: Search User openkruise and let the robot invite you (Chinese)
• Bi-weekly Community Meeting (APAC, Chinese):
  • Thursday 19:00 GMT+8 (Asia/Shanghai), Calendar
  • Meeting Link(zoom)
  • Notes and agenda
• Bi-weekly Community Meeting (English): TODO

License

Kruise is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.