Posts in 2025
Spotlight on SIG Apps
By Sandipan Panda (DevZero) | Wednesday, March 12, 2025 in Blog
In our ongoing SIG Spotlight series, we dive into the heart of the Kubernetes project by talking to the leaders of its various Special Interest Groups (SIGs). This time, we focus on SIG Apps, the group responsible for everything related to …
Spotlight on SIG etcd
By Frederico Muñoz (SAS Institute) | Tuesday, March 04, 2025 in Blog
In this SIG etcd spotlight we talked with James Blair, Marek Siarkowicz, Wenjia Zhang, and Benjamin Wang to learn a bit more about this Kubernetes Special Interest Group. Introducing SIG etcd Frederico: Hello, thank you for the time! Let’s start with …
NFTables mode for kube-proxy
By Dan Winship (Red Hat) | Friday, February 28, 2025 in Blog
A new nftables mode for kube-proxy was introduced as an alpha feature in Kubernetes 1.29. Currently in beta, it is expected to be GA as of 1.33. The new mode fixes long-standing performance problems with the iptables mode and all users running on …
The Cloud Controller Manager Chicken and Egg Problem
By Antonio Ojea, Michael McCune | Friday, February 14, 2025 in Blog
Kubernetes 1.31 completed the largest migration in Kubernetes history, removing the in-tree cloud provider. While the component migration is now done, this leaves some additional complexity for users and installer projects (for example, kOps or …
Spotlight on SIG Architecture: Enhancements
By Frederico Muñoz (SAS Institute) | Tuesday, January 21, 2025 in Blog
This is the fourth interview of a SIG Architecture Spotlight series that will cover the different subprojects, and we will be covering SIG Architecture: Enhancements. In this SIG Architecture spotlight we talked with Kirsten Garrison, lead of the …
Posts in 2024
Kubernetes 1.32: Moving Volume Group Snapshots to Beta
By Xing Yang (VMware by Broadcom) | Wednesday, December 18, 2024 in Blog
Volume group snapshots were introduced as an Alpha feature with the Kubernetes 1.27 release. The recent release of Kubernetes v1.32 moved that support to beta. The support for volume group snapshots relies on a set of extension APIs for group …
Enhancing Kubernetes API Server Efficiency with API Streaming
By Stefan Schimanski (Upbound), Wojciech Tyczynski (Google), Lukasz Szaszkiewicz (Red Hat) | Tuesday, December 17, 2024 in Blog
Managing Kubernetes clusters efficiently is critical, especially as their size is growing. A significant challenge with large clusters is the memory overhead caused by list requests. In the existing implementation, the kube-apiserver processes list …
Kubernetes v1.32 Adds A New CPU Manager Static Policy Option For Strict CPU Reservation
By Jing Zhang (Nokia) | Monday, December 16, 2024 in Blog
In Kubernetes v1.32, after years of community discussion, we are excited to introduce a strict-cpu-reservation option for the CPU Manager static policy. This feature is currently in alpha, with the associated policy hidden by default. You can only …
Kubernetes v1.32: Memory Manager Goes GA
By Talor Itzhak (Red Hat) | Friday, December 13, 2024 in Blog
With Kubernetes 1.32, the memory manager has officially graduated to General Availability (GA), marking a significant milestone in the journey toward efficient and predictable memory allocation for containerized applications. Since Kubernetes v1.22, …
Kubernetes v1.32: QueueingHint Brings a New Possibility to Optimize Pod Scheduling
By Kensei Nakada (Tetrate.io) | Thursday, December 12, 2024 in Blog
The Kubernetes scheduler is the core component that selects the nodes on which new Pods run. The scheduler processes these new Pods one by one. Therefore, the larger your clusters, the more important the throughput of the scheduler becomes. Over the …