Posts in 2025

  • Kubernetes v1.34: Recovery From Volume Expansion Failure (GA)

    By Hemant Kumar (Red Hat) | Friday, September 19, 2025 in Blog

    Have you ever made a typo when expanding your persistent volumes in Kubernetes? Meant to specify 2TB but specified 20TiB? This seemingly innocuous problem was kinda hard to fix - and took the project almost 5 years to fix. Automated recovery from …

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  • Kubernetes v1.34: DRA Consumable Capacity

    By Sunyanan Choochotkaew (IBM), Lionel Jouin (Ericsson Software Technology) John Belamaric (Google) | Thursday, September 18, 2025 in Blog

    Dynamic Resource Allocation (DRA) is a Kubernetes API for managing scarce resources across Pods and containers. It enables flexible resource requests, going beyond simply allocating N number of devices to support more granular usage scenarios. With …

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  • Kubernetes v1.34: Pods Report DRA Resource Health

    By John-Paul Sassine (Google) | Wednesday, September 17, 2025 in Blog

    The rise of AI/ML and other high-performance workloads has made specialized hardware like GPUs, TPUs, and FPGAs a critical component of many Kubernetes clusters. However, as discussed in a previous blog post about navigating failures in Pods with …

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  • Kubernetes v1.34: Moving Volume Group Snapshots to v1beta2

    By Xing Yang (VMware by Broadcom) | Tuesday, September 16, 2025 in Blog

    Volume group snapshots were introduced as an Alpha feature with the Kubernetes 1.27 release and moved to Beta in the Kubernetes 1.32 release. The recent release of Kubernetes v1.34 moved that support to a second beta. The support for volume group …

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  • Kubernetes v1.34: Decoupled Taint Manager Is Now Stable

    By Baofa Fan (DaoCloud) | Monday, September 15, 2025 in Blog

    This enhancement separates the responsibility of managing node lifecycle and pod eviction into two distinct components. Previously, the node lifecycle controller handled both marking nodes as unhealthy with NoExecute taints and evicting pods from …

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  • Kubernetes v1.34: Autoconfiguration for Node Cgroup Driver Goes GA

    By Peter Hunt (Red Hat), Sergey Kanzhelev (Google) | Friday, September 12, 2025 in Blog

    Historically, configuring the correct cgroup driver has been a pain point for users running new Kubernetes clusters. On Linux systems, there are two different cgroup drivers: cgroupfs and systemd. In the past, both the kubelet and CRI implementation …

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  • Kubernetes v1.34: Mutable CSI Node Allocatable Graduates to Beta

    By Eddie Torres (Amazon Web Services) | Thursday, September 11, 2025 in Blog

    The functionality for CSI drivers to update information about attachable volume count on the nodes, first introduced as Alpha in Kubernetes v1.33, has graduated to Beta in the Kubernetes v1.34 release! This marks a significant milestone in enhancing …

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  • Kubernetes v1.34: Use An Init Container To Define App Environment Variables

    By HirazawaUi | Wednesday, September 10, 2025 in Blog

    Kubernetes typically uses ConfigMaps and Secrets to set environment variables, which introduces additional API calls and complexity, For example, you need to separately manage the Pods of your workloads and their configurations, while ensuring …

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  • Kubernetes v1.34: Snapshottable API server cache

    By Marek Siarkowicz (Google) | Tuesday, September 09, 2025 in Blog

    For years, the Kubernetes community has been on a mission to improve the stability and performance predictability of the API server. A major focus of this effort has been taming list requests, which have historically been a primary source of high …

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  • Kubernetes v1.34: VolumeAttributesClass for Volume Modification GA

    By Sunny Song (Google) | Monday, September 08, 2025 in Blog

    The VolumeAttributesClass API, which empowers users to dynamically modify volume attributes, has officially graduated to General Availability (GA) in Kubernetes v1.34. This marks a significant milestone, providing a robust and stable way to tune your …

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