Posts in 2023

  • Verifying Container Image Signatures Within CRI Runtimes

    Thursday, June 29, 2023 in Blog

    Author: Sascha Grunert The Kubernetes community has been signing their container image-based artifacts since release v1.24. While the graduation of the corresponding enhancement from alpha to beta in v1.26 introduced signatures for the binary …

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  • dl.k8s.io to adopt a Content Delivery Network

    Friday, June 09, 2023 in Blog

    Authors: Arnaud Meukam (VMware), Hannah Aubry (Fastly), Frederico Muñoz (SAS Institute) We're happy to announce that dl.k8s.io, home of the official Kubernetes binaries, will soon be powered by Fastly. Fastly is known for its high-performance content …

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  • Using OCI artifacts to distribute security profiles for seccomp, SELinux and AppArmor

    Wednesday, May 24, 2023 in Blog

    Author: Sascha Grunert The Security Profiles Operator (SPO) makes managing seccomp, SELinux and AppArmor profiles within Kubernetes easier than ever. It allows cluster administrators to define the profiles in a predefined custom resource YAML, which …

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  • Having fun with seccomp profiles on the edge

    Thursday, May 18, 2023 in Blog

    Author: Sascha Grunert The Security Profiles Operator (SPO) is a feature-rich operator for Kubernetes to make managing seccomp, SELinux and AppArmor profiles easier than ever. Recording those profiles from scratch is one of the key features of this …

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  • Kubernetes 1.27: KMS V2 Moves to Beta

    Tuesday, May 16, 2023 in Blog

    Authors: Anish Ramasekar, Mo Khan, and Rita Zhang (Microsoft) With Kubernetes 1.27, we (SIG Auth) are moving Key Management Service (KMS) v2 API to beta. What is KMS? One of the first things to consider when securing a Kubernetes cluster is …

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  • 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 (independent) 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 …

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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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