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+# OpenKruise proposal for CNCF Incubation
+
+## About OpenKruise
+
+[OpenKruise](https://openkruise.io) is an extended component suite for Kubernetes,
+which mainly focuses on application automations, such as deployment, upgrade, ops and availability protection.
+Most features provided by OpenKruise are built primarily based on CRD extensions.
+They can work in pure Kubernetes clusters without any other dependencies.
+
+Now OpenKruise provides the following capabilities:
+
+- **Advanced workloads**, which support not only the basic features that are similar to the upstream Workloads in Kubernetes, but also more advanced abilities such as in-place update, configurable scale/upgrade strategies, parallel operations.
+- **Sidecar container management**, which defines, injects and even upgrades sidecar containers with no effect on application containers.
+- **Multiple domain management**, which empowers workload to support multi-domain and elastic deployment, so that users can define the rules about how their applications should be deployed over different kinds of nodes, e.g., nodes across availability zones.
+- **Enhanced operations**, such as restarting containers in-place, pre-downloading images on specific nodes, controlling containers starting priority in a Pod and distributing resources over multiple namespaces.
+- **Application availability protection**, which can prevent unexpected Kubernetes resources deletion during cascading deletion and prevent application from disruption or SLA degradation in voluntary disruption scenarios.
+
+OpenKruise was accepted as a CNCF Sandbox project on Nov 10, 2020.
+
+* [Project Annual Review](https://github.com/cncf/toc/blob/main/reviews/2021-OpenKruise-annual.md)
+* [Presentation for TAG-runtime](https://docs.google.com/presentation/d/1bzCNwjRtVJ7YMAYcsVWu_1YLCdvMfYk2uzAlQChdS5w/edit#slide=id.p1)
+* [Presentation for TAG-app-delivery](https://docs.google.com/presentation/d/16lH6yXEpHcYZiErnXtJG8QR-C_4g07Jz9h_qIByRpGM/edit#slide=id.g127c7cee73c_2_75)
+
+## Continuous Momentum
+
+The OpenKruise devstats page and dashboards can be found [here](https://openkruise.devstats.cncf.io/d/8/dashboards?orgId=1&refresh=15m&search=open).
+
+* Least Release: v1.2.0
+* Num of Contributors: 50+ => *110+*
+* Github Stars: 1700+ => *3200+*
+* Github Forks: 220+ => *520+*
+* Contributing member organizations: 30+ => *50+*
+* Maintainers (including Approvers & Reviewers): 3 (1 company) => *7* (5 companies)
+* Docker image Pulls: *10M+*
+* Member of DingTalk group + Slack channel: 600+ -> *1300+*
+
+## Incubation Stage Requirements
+
+**_Document that it is being used successfully in production by at least three independent end users which, in the TOC’s judgement, are of adequate quality and scope._**
+
+Now there are at least 40+ adopters that have used OpenKruise in production, full list of registered adopters can be found [here](https://github.com/openkruise/kruise/issues/289).
+Highlighted examples includes:
+- [**Alibaba**](https://www.alibaba.com/): Using Kruise for managing all their applications and sidecars in large-scale clusters.
+- [**LinkedIn**](https://www.linkedin.com/): Using CloneSet for managing large-scale workloads (in-place updates, enhanced PVC support).
+- [**MeiTuan**](https://about.meituan.com/en): Using CloneSet and AdvanceStatefulSet for managing stateless and stateful apps. 
+- [**Ctrip**](https://www.ctrip.com/): Using CloneSet and AdvanceStatefulSet for managing stateless and stateful apps. They need inplace and partial updates.
+- [**Lyft**](https://www.lyft.com/): Using Kruise CloneSets and bin packing for selective downscaling of stateful nodes.
+
+**_Have a healthy number of committers. A committer is defined as someone with the commit bit; i.e., someone who can accept contributions to some or all of the project._**
+
+OpenKruise currently has [110+ different PR authors](https://openkruise.devstats.cncf.io/d/22/prs-authors-table?orgId=1) and contributions from [50+ different organizations](https://openkruise.devstats.cncf.io/d/5/companies-table?orgId=1), which includes commits from [more than 15 organizations](https://openkruise.devstats.cncf.io/d/5/companies-table?orgId=1&var-period_name=Last%20decade&var-metric=commits).
+
+There are [17](https://github.com/orgs/openkruise/people) project members for OpenKruise, out of which seven are project maintainers from five different organizations,
+and a clear [membership definition](https://github.com/openkruise/community/blob/master/community-membership.md) on how to become a member, approver, and maintainer of the project.
+The maintainers list can be found [here](https://github.com/openkruise/community/blob/master/MAINTAINERS.md).
+
+**_Demonstrate a substantial ongoing flow of commits and merged contributions._**
+
+A short summary has been provided in the aforementioned community section. Detailed statistics can be found in the following devstats links:
+- [Commit Activity](https://openkruise.devstats.cncf.io/d/74/contributions-chart?orgId=1)
+- [New contributors since sandboxing](https://openkruise.devstats.cncf.io/d/52/new-contributors-table?orgId=1&from=1573369200000&to=now)
+- [Issues open/closed since sandboxing](https://openkruise.devstats.cncf.io/d/12/issues-opened-closed-by-repository-group?orgId=1&from=1599721200000&to=now)
+- [PRs open/closed since sandboxing](https://openkruise.devstats.cncf.io/d/12/issues-opened-closed-by-repository-group?orgId=1&from=1599721200000&to=now)
+- [Contributing organizations](https://openkruise.devstats.cncf.io/d/5/companies-table?orgId=1)
+
+**_A clear versioning scheme._**
+
+OpenKruise uses the [semantic versioning scheme](https://semver.org/#semantic-versioning-specification-semver).
+OpenKruise follows a quarterly release cadence with version numbers using format of MAJOR.MINOR.PATCH. The latest release is v1.2.0.
+
+We have releases documented at: https://github.com/openkruise/kruise/releases
+
+The latest 4 releases are:
+
+* [release 1.0.0](https://github.com/openkruise/kruise/releases/tag/v1.0.0)
+* [release 1.0.1](https://github.com/openkruise/kruise/releases/tag/v1.0.1)
+* [release 1.1.0](https://github.com/openkruise/kruise/releases/tag/v1.1.0)
+* [release 1.2.0](https://github.com/openkruise/kruise/releases/tag/v1.2.0)
+* release 1.3 (WIP)
+
+## Future plan
+
+We are running our project in a fairly open model so that we can react to the needs of our community promptly. In addition, we have recently introduced a [roadmap](https://github.com/openkruise/kruise/projects/2) page in github so that the community members can easily track where we are going. There are still quite a few critical and high demanding features that are under development, including but not limited to the following:
+- A new CRD named PodMarker to mark pods by number, labels, nodes, probes, etc.
+- Decoupled liveness probe which supports restart containers on failure with limited rate.
+- Binding nodes for statefulset pods after being recreated.
+- Enhanced application rollout for traffic shifting and batch upgrades.
+
+## Summary
+
+We believe that OpenKruise is ready for Incubation. The project closely aligns with CNCF values on openness and fairness. It has been used in production by at least 40+ organizations and it seems to meet all of the required criteria to move to the next stage.
+
+We're really looking forward to getting started with the process and we're keen to move as quickly as possible. We - the maintainers - will gladly make ourselves available to assist with any due diligence research, to make any presentations required and generally to assist in any way we can be helpful.