Kubernetes Blog

Posts in 2023

• Kubernetes 1.27: updates on speeding up Pod startup

  Monday, May 15, 2023 in Blog

  Authors: Paco Xu (DaoCloud), Sergey Kanzhelev (Google), Ruiwen Zhao (Google) How can Pod start-up be accelerated on nodes in large clusters? This is a common issue that cluster administrators may face. This blog post focuses on methods to speed up …

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• Kubernetes 1.27: In-place Resource Resize for Kubernetes Pods (alpha)

  Friday, May 12, 2023 in Blog

  Author: Vinay Kulkarni (Kubescaler Labs) If you have deployed Kubernetes pods with CPU and/or memory resources specified, you may have noticed that changing the resource values involves restarting the pod. This has been a disruptive operation for …

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• Kubernetes 1.27: Avoid Collisions Assigning Ports to NodePort Services

  Thursday, May 11, 2023 in Blog

  Author: Xu Zhenglun (Alibaba) In Kubernetes, a Service can be used to provide a unified traffic endpoint for applications running on a set of Pods. Clients can use the virtual IP address (or VIP) provided by the Service for access, and Kubernetes …

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• Kubernetes 1.27: Safer, More Performant Pruning in kubectl apply

  Tuesday, May 09, 2023 in Blog

  Authors: Katrina Verey (Shopify) and Justin Santa Barbara (Google) Declarative configuration management with the kubectl apply command is the gold standard approach to creating or modifying Kubernetes resources. However, one challenge it presents is …

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• Kubernetes 1.27: Introducing An API For Volume Group Snapshots

  Monday, May 08, 2023 in Blog

  Author: Xing Yang (VMware) Volume group snapshot is introduced as an Alpha feature in Kubernetes v1.27. This feature introduces a Kubernetes API that allows users to take crash consistent snapshots for multiple volumes together. It uses a label …

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• Kubernetes 1.27: StatefulSet Start Ordinal Simplifies Migration

  Friday, April 28, 2023 in Blog

  Author: Peter Schuurman (Google) Kubernetes v1.26 introduced a new, alpha-level feature for StatefulSets that controls the ordinal numbering of Pod replicas. As of Kubernetes v1.27, this feature is now beta. Ordinals can start from arbitrary …

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• Updates to the Auto-refreshing Official CVE Feed

  Tuesday, April 25, 2023 in Blog

  Authors: Cailyn Edwards (Shopify), Mahé Tardy (Isovalent), Pushkar Joglekar Since launching the Auto-refreshing Official CVE feed as an alpha feature in the 1.25 release, we have made significant improvements and updates. We are excited to announce …

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• Kubernetes 1.27: Server Side Field Validation and OpenAPI V3 move to GA

  Monday, April 24, 2023 in Blog

  Author: Jeffrey Ying (Google), Antoine Pelisse (Google) Before Kubernetes v1.8 (!), typos, mis-indentations or minor errors in YAMLs could have catastrophic consequences (e.g. a typo like forgetting the trailing s in replica: 1000 could cause an …

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• Kubernetes 1.27: Query Node Logs Using The Kubelet API

  Friday, April 21, 2023 in Blog

  Author: Aravindh Puthiyaparambil (Red Hat) Kubernetes 1.27 introduced a new feature called Node log query that allows viewing logs of services running on the node. What problem does it solve? Cluster administrators face issues when debugging …

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• Kubernetes 1.27: Single Pod Access Mode for PersistentVolumes Graduates to Beta

  Thursday, April 20, 2023 in Blog

  Author: Chris Henzie (Google) With the release of Kubernetes v1.27 the ReadWriteOncePod feature has graduated to beta. In this blog post, we'll take a closer look at this feature, what it does, and how it has evolved in the beta release. What is …

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