Posts in 2023

  • Kubernetes 1.27: HorizontalPodAutoscaler ContainerResource type metric moves to beta

    By Kensei Nakada (Mercari) | Tuesday, May 02, 2023 in Blog

    Kubernetes 1.20 introduced the ContainerResource type metric in HorizontalPodAutoscaler (HPA). In Kubernetes 1.27, this feature moves to beta and the corresponding feature gate (HPAContainerMetrics) gets enabled by default. What is the …

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  • Kubernetes 1.27: StatefulSet Start Ordinal Simplifies Migration

    By Peter Schuurman (Google) | Friday, April 28, 2023 in Blog

    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 non-negative numbers. This blog post will …

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  • Updates to the Auto-refreshing Official CVE Feed

    By Cailyn Edwards (Shopify), Mahé Tardy (Isovalent), Pushkar Joglekar | Tuesday, April 25, 2023 in Blog

    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 the release of the beta version of the feed. This blog post will outline the …

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

    By Jeffrey Ying (Google), Antoine Pelisse (Google) | Monday, April 24, 2023 in Blog

    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 outage, because the value would be ignored and missing, …

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  • Kubernetes 1.27: Query Node Logs Using The Kubelet API

    By Aravindh Puthiyaparambil (Red Hat) | Friday, April 21, 2023 in Blog

    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 malfunctioning services running on the node. They …

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

    By Chris Henzie (Google) | Thursday, April 20, 2023 in Blog

    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 ReadWriteOncePod? ReadWriteOncePod …

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  • Kubernetes 1.27: Efficient SELinux volume relabeling (Beta)

    By Jan Šafránek (Red Hat) | Tuesday, April 18, 2023 in Blog

    The problem On Linux with Security-Enhanced Linux (SELinux) enabled, it's traditionally the container runtime that applies SELinux labels to a Pod and all its volumes. Kubernetes only passes the SELinux label from a Pod's securityContext fields to …

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  • Kubernetes 1.27: More fine-grained pod topology spread policies reached beta

    By Alex Wang (Shopee), Kante Yin (DaoCloud), Kensei Nakada (Mercari) | Monday, April 17, 2023 in Blog

    In Kubernetes v1.19, Pod topology spread constraints went to general availability (GA). As time passed, we - SIG Scheduling - received feedback from users, and, as a result, we're actively working on improving the Topology Spread feature via three …

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  • Kubernetes v1.27: Chill Vibes

    By Kubernetes v1.27 Release Team | Tuesday, April 11, 2023 in Blog

    Announcing the release of Kubernetes v1.27, the first release of 2023! This release consist of 60 enhancements. 18 of those enhancements are entering Alpha, 29 are graduating to Beta, and 13 are graduating to Stable. Release theme and logo Kubernetes …

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  • Keeping Kubernetes Secure with Updated Go Versions

    By Jordan Liggitt (Google) | Thursday, April 06, 2023 in Blog

    The problem Since v1.19 (released in 2020), the Kubernetes project provides 12-14 months of patch releases for each minor version. This enables users to qualify and adopt Kubernetes versions in an annual upgrade cycle and receive security fixes for a …

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