Kubernetes Blog

Posts in 2024

• Kubernetes 1.31: Custom Profiling in Kubectl Debug Graduates to Beta

  By Arda Güçlü (Red Hat) | Thursday, August 22, 2024 in Blog

  There are many ways of troubleshooting the pods and nodes in the cluster. However, kubectl debug is one of the easiest, highly used and most prominent ones. It provides a set of static profiles and each profile serves for a different kind of role. …

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• Kubernetes 1.31: Autoconfiguration For Node Cgroup Driver (beta)

  By Peter Hunt (Red Hat) | Wednesday, August 21, 2024 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 1.31: Streaming Transitions from SPDY to WebSockets

  By Sean Sullivan (Google) Shannon Kularathna (Google) | Tuesday, August 20, 2024 in Blog

  In Kubernetes 1.31, by default kubectl now uses the WebSocket protocol instead of SPDY for streaming. This post describes what these changes mean for you and why these streaming APIs matter. Streaming APIs in Kubernetes In Kubernetes, specific …

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• Kubernetes 1.31: Pod Failure Policy for Jobs Goes GA

  By Michał Woźniak (Google), Shannon Kularathna (Google) | Monday, August 19, 2024 in Blog

  This post describes Pod failure policy, which graduates to stable in Kubernetes 1.31, and how to use it in your Jobs. About Pod failure policy When you run workloads on Kubernetes, Pods might fail for a variety of reasons. Ideally, workloads like …

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• Kubernetes 1.31: Read Only Volumes Based On OCI Artifacts (alpha)

  By Sascha Grunert | Friday, August 16, 2024 in Blog

  The Kubernetes community is moving towards fulfilling more Artificial Intelligence (AI) and Machine Learning (ML) use cases in the future. While the project has been designed to fulfill microservice architectures in the past, it’s now time to listen …

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• Kubernetes 1.31: Prevent PersistentVolume Leaks When Deleting out of Order

  By Deepak Kinni (Broadcom) | Friday, August 16, 2024 in Blog

  PersistentVolume (or PVs for short) are associated with Reclaim Policy. The reclaim policy is used to determine the actions that need to be taken by the storage backend on deletion of the PVC Bound to a PV. When the reclaim policy is Delete, the …

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• Kubernetes 1.31: MatchLabelKeys in PodAffinity graduates to beta

  By Kensei Nakada (Tetrate) | Friday, August 16, 2024 in Blog

  Kubernetes 1.29 introduced new fields matchLabelKeys and mismatchLabelKeys in podAffinity and podAntiAffinity. In Kubernetes 1.31, this feature moves to beta and the corresponding feature gate (MatchLabelKeysInPodAffinity) gets enabled by default. …

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• Kubernetes v1.31: Accelerating Cluster Performance with Consistent Reads from Cache

  By Marek Siarkowicz (Google) | Thursday, August 15, 2024 in Blog

  Kubernetes is renowned for its robust orchestration of containerized applications, but as clusters grow, the demands on the control plane can become a bottleneck. A key challenge has been ensuring strongly consistent reads from the etcd datastore, …

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• Kubernetes 1.31: VolumeAttributesClass for Volume Modification Beta

  By Sunny Song (Google) Matthew Cary (Google) | Thursday, August 15, 2024 in Blog

  Volumes in Kubernetes have been described by two attributes: their storage class, and their capacity. The storage class is an immutable property of the volume, while the capacity can be changed dynamically with volume resize. This complicates …

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• Kubernetes v1.31: PersistentVolume Last Phase Transition Time Moves to GA

  By Roman Bednář (Red Hat) | Wednesday, August 14, 2024 in Blog

  Announcing the graduation to General Availability (GA) of the PersistentVolume lastTransitionTime status field, in Kubernetes v1.31! The Kubernetes SIG Storage team is excited to announce that the "PersistentVolumeLastPhaseTransitionTime" …

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