base on LeaderWorkerSet: An API for deploying a group of pods as a unit of replication # The LeaderWorkerSet API (LWS) [![GoReport Widget]][GoReport Status] [](https://github.com/kubernetes-sigs/lws/releases/latest) [GoReport Widget]: https://goreportcard.com/badge/github.com/kubernetes-sigs/lws [GoReport Status]: https://goreportcard.com/report/github.com/kubernetes-sigs/lws <img src="https://github.com/kubernetes-sigs/lws/blob/main/site/static/images/logo.svg" width="100" alt="lws logo"> LeaderWorkerSet: An API for deploying a group of pods as a unit of replication. It aims to address common deployment patterns of AI/ML inference workloads, especially multi-host inference workloads where the LLM will be sharded and run across multiple devices on multiple nodes. The initial design and proposal can be found at: <http://bit.ly/k8s-LWS>. Read the [documentation](https://lws.sigs.k8s.io/docs/) or watch the LWS-related [talks & presentations](https://lws.sigs.k8s.io/docs/adoption/#talks-and-presentations) to learn more. ## Conceptual view  ## Feature overview - **Group of Pods as a unit:** Supports a tightly managed group of pods that represent a “super pod” - **Unique pod identity:** Each pod in the group has a unique index from 0 to n-1. - **Parallel creation:** Pods in the group will have the same lifecycle and be created in parallel. - **Dual-template, one for leader and one for the workers:** A replica is a group of a single leader and a set of workers, and allow to specify a template for the workers and optionally use a second one for the leader pod. - **Multiple groups with identical specifications:** Supports creating multiple “replicas” of the above mentioned group. Each group is a single unit for rolling update, scaling, and maps to a single exclusive topology for placement. - **A scale subresource:** A scale endpoint is exposed for HPA to dynamically scale the number replicas (aka number of groups) - **Rollout and Rolling update:** Supports performing rollout and rolling update at the group level, which means the groups are upgraded one by one as a unit (i.e. the pods within a group are updated together). - **Topology-aware placement:** Opt-in support for pods in the same group to be co-located in the same topology. - **All-or-nothing restart for failure handling:** Opt-in support for all pods in the group to be recreated if one pod in the group failed or one container in the pods is restarted. ## Installation Read the [installation guide](https://lws.sigs.k8s.io/docs/installation/) to learn more. ## Examples Read the [examples](/docs/examples/sample/README.md) to learn more. Also discover adopters, integrations, and talks [here](https://lws.sigs.k8s.io/docs/adoption/#talks-and-presentations). ## Community, discussion, contribution, and support Learn how to engage with the Kubernetes community on the [community page](http://kubernetes.io/community/). You can reach the maintainers of this project at: - [Slack](https://kubernetes.slack.com/messages/sig-apps) - [Mailing List](https://groups.google.com/g/kubernetes-sig-apps) ### Code of conduct Participation in the Kubernetes community is governed by the [Kubernetes Code of Conduct](code-of-conduct.md). ", Assign "at most 3 tags" to the expected json: {"id":"12968","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"