Kubernetes Blog

• Kubernetes v1.34: Finer-Grained Control Over Container Restarts 2025-08-29
  With the release of Kubernetes 1.34, a new alpha feature is introduced that gives you more granular control over container restarts within a Pod. This feature, named Container Restart Policy and Rules, allows you to specify a restart policy for each container individually, overriding the Pod's global restart policy. In addition, it also allows you […]
• Kubernetes v1.34: User preferences (kuberc) are available for testing in kubectl 1.34 2025-08-28
  Have you ever wished you could enable interactive delete, by default, in kubectl? Or maybe, you'd like to have custom aliases defined, but not necessarily generate hundreds of them manually? Look no further. SIG-CLI has been working hard to add user preferences to kubectl, and we are happy to announce that this functionality is reaching […]
• Kubernetes v1.34: Of Wind & Will (O' WaW) 2025-08-27
  Editors: Agustina Barbetta, Alejandro Josue Leon Bellido, Graziano Casto, Melony Qin, Dipesh Rawat Similar to previous releases, the release of Kubernetes v1.34 introduces new stable, beta, and alpha features. The consistent delivery of high-quality releases underscores the strength of our development cycle and the vibrant support from our community. This release consists of 58 enhancements. […]
• Tuning Linux Swap for Kubernetes: A Deep Dive 2025-08-19
  The Kubernetes NodeSwap feature, likely to graduate to stable in the upcoming Kubernetes v1.34 release, allows swap usage: a significant shift from the conventional practice of disabling swap for performance predictability. This article focuses exclusively on tuning swap on Linux nodes, where this feature is available. By allowing Linux nodes to use secondary storage for […]
• Introducing Headlamp AI Assistant 2025-08-07
  This announcement originally appeared on the Headlamp blog. To simplify Kubernetes management and troubleshooting, we're thrilled to introduce Headlamp AI Assistant: a powerful new plugin for Headlamp that helps you understand and operate your Kubernetes clusters and applications with greater clarity and ease. Whether you're a seasoned engineer or just getting started, the AI Assistant […]
• Kubernetes v1.34 Sneak Peek 2025-07-28
  Kubernetes v1.34 is coming at the end of August 2025. This release will not include any removal or deprecation, but it is packed with an impressive number of enhancements. Here are some of the features we are most excited about in this cycle! Please note that this information reflects the current state of v1.34 development […]
• Post-Quantum Cryptography in Kubernetes 2025-07-18
  The world of cryptography is on the cusp of a major shift with the advent of quantum computing. While powerful quantum computers are still largely theoretical for many applications, their potential to break current cryptographic standards is a serious concern, especially for long-lived systems. This is where Post-Quantum Cryptography (PQC) comes in. In this article, […]
• Navigating Failures in Pods With Devices 2025-07-03
  Kubernetes is the de facto standard for container orchestration, but when it comes to handling specialized hardware like GPUs and other accelerators, things get a bit complicated. This blog post dives into the challenges of managing failure modes when operating pods with devices in Kubernetes, based on insights from Sergey Kanzhelev and Mrunal Patel's talk […]
• Image Compatibility In Cloud Native Environments 2025-06-25
  In industries where systems must run very reliably and meet strict performance criteria such as telecommunication, high-performance or AI computing, containerized applications often need specific operating system configuration or hardware presence. It is common practice to require the use of specific versions of the kernel, its configuration, device drivers, or system components. Despite the existence […]
• Changes to Kubernetes Slack 2025-06-16
  UPDATE: We’ve received notice from Salesforce that our Slack workspace WILL NOT BE DOWNGRADED on June 20th. Stand by for more details, but for now, there is no urgency to back up private channels or direct messages. Kubernetes Slack will lose its special status and will be changing into a standard free Slack on June […]
• Enhancing Kubernetes Event Management with Custom Aggregation 2025-06-10
  Kubernetes Events provide crucial insights into cluster operations, but as clusters grow, managing and analyzing these events becomes increasingly challenging. This blog post explores how to build custom event aggregation systems that help engineering teams better understand cluster behavior and troubleshoot issues more effectively. The challenge with Kubernetes events In a Kubernetes cluster, events are […]
• Introducing Gateway API Inference Extension 2025-06-05
  Modern generative AI and large language model (LLM) services create unique traffic-routing challenges on Kubernetes. Unlike typical short-lived, stateless web requests, LLM inference sessions are often long-running, resource-intensive, and partially stateful. For example, a single GPU-backed model server may keep multiple inference sessions active and maintain in-memory token caches. Traditional load balancers focused on HTTP […]
• Start Sidecar First: How To Avoid Snags 2025-06-03
  From the Kubernetes Multicontainer Pods: An Overview blog post you know what their job is, what are the main architectural patterns, and how they are implemented in Kubernetes. The main thing I’ll cover in this article is how to ensure that your sidecar containers start before the main app. It’s more complicated than you might […]
• Gateway API v1.3.0: Advancements in Request Mirroring, CORS, Gateway Merging, and Retry Budgets 2025-06-02
  Join us in the Kubernetes SIG Network community in celebrating the general availability of Gateway API v1.3.0! We are also pleased to announce that there are already a number of conformant implementations to try, made possible by postponing this blog announcement. Version 1.3.0 of the API was released about a month ago on April 24, […]
• Kubernetes v1.33: In-Place Pod Resize Graduated to Beta 2025-05-16
  On behalf of the Kubernetes project, I am excited to announce that the in-place Pod resize feature (also known as In-Place Pod Vertical Scaling), first introduced as alpha in Kubernetes v1.27, has graduated to Beta and will be enabled by default in the Kubernetes v1.33 release! This marks a significant milestone in making resource management […]
• Announcing etcd v3.6.0 2025-05-16
  This announcement originally appeared on the etcd blog. Today, we are releasing etcd v3.6.0, the first minor release since etcd v3.5.0 on June 15, 2021. This release introduces several new features, makes significant progress on long-standing efforts like downgrade support and migration to v3store, and addresses numerous critical & major issues. It also includes major […]
• Kubernetes 1.33: Job's SuccessPolicy Goes GA 2025-05-15
  On behalf of the Kubernetes project, I'm pleased to announce that Job success policy has graduated to General Availability (GA) as part of the v1.33 release. About Job's Success Policy In batch workloads, you might want to use leader-follower patterns like MPI, in which the leader controls the execution, including the followers' lifecycle. In this […]
• Kubernetes v1.33: Updates to Container Lifecycle 2025-05-14
  Kubernetes v1.33 introduces a few updates to the lifecycle of containers. The Sleep action for container lifecycle hooks now supports a zero sleep duration (feature enabled by default). There is also alpha support for customizing the stop signal sent to containers when they are being terminated. This blog post goes into the details of these […]
• Kubernetes v1.33: Job's Backoff Limit Per Index Goes GA 2025-05-13
  In Kubernetes v1.33, the Backoff Limit Per Index feature reaches general availability (GA). This blog describes the Backoff Limit Per Index feature and its benefits. About backoff limit per index When you run workloads on Kubernetes, you must consider scenarios where Pod failures can affect the completion of your workloads. Ideally, your workload should tolerate […]
• Kubernetes v1.33: Image Pull Policy the way you always thought it worked! 2025-05-12
  Image Pull Policy the way you always thought it worked! Some things in Kubernetes are surprising, and the way imagePullPolicy behaves might be one of them. Given Kubernetes is all about running pods, it may be peculiar to learn that there has been a caveat to restricting pod access to authenticated images for over 10 […]