# karpenter-core **Repository Path**: mirrors_aws/karpenter-core ## Basic Information - **Project Name**: karpenter-core - **Description**: Karpenter is a Kubernetes Node Autoscaler built for flexibility, performance, and simplicity. - **Primary Language**: Unknown - **License**: Apache-2.0 - **Default Branch**: main - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2022-10-24 - **Last Updated**: 2026-03-21 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README [![Build Status](https://img.shields.io/github/actions/workflow/status/aws/karpenter-core/presubmit.yaml?branch=main)](https://github.com/aws/karpenter-core/actions/workflows/presubmit.yaml) ![GitHub stars](https://img.shields.io/github/stars/aws/karpenter-core) ![GitHub forks](https://img.shields.io/github/forks/aws/karpenter-core) [![GitHub License](https://img.shields.io/badge/License-Apache%202.0-ff69b4.svg)](https://github.com/aws/karpenter-core/blob/main/LICENSE) [![Go Report Card](https://goreportcard.com/badge/github.com/aws/karpenter-core)](https://goreportcard.com/report/github.com/aws/karpenter-core) [![Coverage Status](https://coveralls.io/repos/github/aws/karpenter-core/badge.svg?branch=main)](https://coveralls.io/github/aws/karpenter-core?branch=main) [![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](https://github.com/aws/karpenter-core/issues) # Karpenter Karpenter improves the efficiency and cost of running workloads on Kubernetes clusters by: * **Watching** for pods that the Kubernetes scheduler has marked as unschedulable * **Evaluating** scheduling constraints (resource requests, nodeselectors, affinities, tolerations, and topology spread constraints) requested by the pods * **Provisioning** nodes that meet the requirements of the pods * **Removing** the nodes when the nodes are no longer needed ## Karpenter Implementations Karpenter is a multi-cloud project with implementations by the following cloud providers: - [AWS](https://github.com/aws/karpenter-provider-aws) - [Azure](https://github.com/Azure/karpenter-provider-azure) - [AlibabaCloud](https://github.com/cloudpilot-ai/karpenter-provider-alibabacloud) - [Bizfly Cloud](https://github.com/bizflycloud/karpenter-provider-bizflycloud) - [Cluster API](https://github.com/kubernetes-sigs/karpenter-provider-cluster-api) - [Exoscale](https://github.com/exoscale/karpenter-provider-exoscale/) - [GCP](https://github.com/cloudpilot-ai/karpenter-provider-gcp) - [IBM Cloud](https://github.com/kubernetes-sigs/karpenter-provider-ibm-cloud) - [Proxmox](https://github.com/sergelogvinov/karpenter-provider-proxmox) - [Oracle Cloud Infrastructure (OCI) - Provided by Zoom](https://github.com/zoom/karpenter-oci) ## Community, discussion, contribution, and support If you have any questions or want to get the latest project news, you can connect with us in the following ways: - __Using and Deploying Karpenter?__ Reach out in the [#karpenter](https://kubernetes.slack.com/archives/C02SFFZSA2K) channel in the [Kubernetes slack](https://slack.k8s.io/) to ask questions about configuring or troubleshooting Karpenter. - __Contributing to or Developing with Karpenter?__ Join the [#karpenter-dev](https://kubernetes.slack.com/archives/C04JW2J5J5P) channel in the [Kubernetes slack](https://slack.k8s.io/) to ask in-depth questions about contribution or to get involved in design discussions. ### Working Group Meetings Bi-weekly meetings alternating between Thursdays @ 9:00 PT ([convert to your timezone](http://www.thetimezoneconverter.com/?t=9:00&tz=Seattle)) and Thursdays @ 15:00 PT ([convert to your timezone](http://www.thetimezoneconverter.com/?t=15:00&tz=Seattle)) ### Issue Triage Meetings Weekly meetings alternating between repositories and time slots. Please check the calendar invite for specific dates: **kubernetes-sigs/karpenter**: - Alternating Mondays @ 9:00 PT ([convert to your timezone](http://www.thetimezoneconverter.com/?t=9:00&tz=Seattle)) and @ 15:00 PT ([convert to your timezone](http://www.thetimezoneconverter.com/?t=15:00&tz=Seattle)) monthly **aws/karpenter-provider-aws**: - Alternating Mondays @ 9:00 PT ([convert to your timezone](http://www.thetimezoneconverter.com/?t=9:00&tz=Seattle)) and @ 15:00 PT ([convert to your timezone](http://www.thetimezoneconverter.com/?t=15:00&tz=Seattle)) monthly #### Meeting Resources - **Zoom Link**: [Join Meeting](https://zoom.us/j/95618088729) (password: 77777) - **Calendar**: Subscribe to our [Google Calendar](https://calendar.google.com/calendar/u/0?cid=N3FmZGVvZjVoZWJkZjZpMnJrMmplZzVqYmtAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ) - **Meeting Notes**: View our [Working Group Log](https://docs.google.com/document/d/18BT0AIMugpNpiSPJNlcAL2rv69yAE6Z06gUVj7v_clg/edit?usp=sharing) Pull Requests and feedback on issues are very welcome! See the [issue tracker](https://github.com/aws/karpenter-core/issues) if you're unsure where to start, especially the [Good first issue](https://github.com/aws/karpenter-core/issues?q=is%3Aopen+is%3Aissue+label%3Agood-first-issue) and [Help wanted](https://github.com/aws/karpenter-core/issues?utf8=%E2%9C%93&q=is%3Aopen+is%3Aissue+label%3Ahelp-wanted) tags, and also feel free to reach out to discuss. See also our [contributor guide](CONTRIBUTING.md) and the Kubernetes [community page](https://kubernetes.io/community) for more details on how to get involved. ### Code of conduct Participation in the Kubernetes community is governed by the [Kubernetes Code of Conduct](code-of-conduct.md). ## Talks - 04/03/2025 [Automating Kubernetes Cluster Updates: Achieving Zero Downtime Effortlessly @ KubeCon](https://youtu.be/rAIcQvKBuZA?si=UZhNqwjPCIybHCvW) - 09/08/2022 [Workload Consolidation with Karpenter](https://youtu.be/BnksdJ3oOEs) - 05/19/2022 [Scaling K8s Nodes Without Breaking the Bank or Your Sanity](https://www.youtube.com/watch?v=UBb8wbfSc34) - 03/25/2022 [Karpenter @ AWS Community Day 2022](https://youtu.be/sxDtmzbNHwE?t=3931) - 12/20/2021 [How To Auto-Scale Kubernetes Clusters With Karpenter](https://youtu.be/C-2v7HT-uSA) - 11/30/2021 [Karpenter vs Kubernetes Cluster Autoscaler](https://youtu.be/3QsVRHVdOnM) - 11/19/2021 [Karpenter @ Container Day](https://youtu.be/qxWJRUF6JJc) - 05/14/2021 [Groupless Autoscaling with Karpenter @ Kubecon](https://www.youtube.com/watch?v=43g8uPohTgc) - 05/04/2021 [Karpenter @ Container Day](https://youtu.be/MZ-4HzOC_ac?t=7137)