Posts in 2021
Using Admission Controllers to Detect Container Drift at Runtime
Tuesday, December 21, 2021 in Blog
Author: Saifuding Diliyaer (Box) Illustration by Munire Aireti At Box, we use Kubernetes (K8s) to manage hundreds of micro-services that enable Box to stream data at a petabyte scale. When it comes to the deployment process, we run kube-applier as …
What's new in Security Profiles Operator v0.4.0
Friday, December 17, 2021 in Blog
Authors: Jakub Hrozek, Juan Antonio Osorio, Paulo Gomes, Sascha Grunert The Security Profiles Operator (SPO) is an out-of-tree Kubernetes enhancement to make the management of seccomp, SELinux and AppArmor profiles easier and more convenient. We're …
Kubernetes 1.23: StatefulSet PVC Auto-Deletion (alpha)
Thursday, December 16, 2021 in Blog
Author: Matthew Cary (Google) Kubernetes v1.23 introduced a new, alpha-level policy for StatefulSets that controls the lifetime of PersistentVolumeClaims (PVCs) generated from the StatefulSet spec template for cases when they should be deleted …
Kubernetes 1.23: Prevent PersistentVolume leaks when deleting out of order
Wednesday, December 15, 2021 in Blog
Author: Deepak Kinni (VMware) 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 PV. Where the reclaim policy is …
Kubernetes 1.23: Kubernetes In-Tree to CSI Volume Migration Status Update
Friday, December 10, 2021 in Blog
Author: Jiawei Wang (Google) The Kubernetes in-tree storage plugin to Container Storage Interface (CSI) migration infrastructure has already been beta since v1.17. CSI migration was introduced as alpha in Kubernetes v1.14. Since then, SIG Storage and …
Kubernetes 1.23: Pod Security Graduates to Beta
Thursday, December 09, 2021 in Blog
Authors: Jim Angel (Google), Lachlan Evenson (Microsoft) With the release of Kubernetes v1.23, Pod Security admission has now entered beta. Pod Security is a built-in admission controller that evaluates pod specifications against a predefined set of …
Kubernetes 1.23: Dual-stack IPv4/IPv6 Networking Reaches GA
Wednesday, December 08, 2021 in Blog
Author: Bridget Kromhout (Microsoft) "When will Kubernetes have IPv6?" This question has been asked with increasing frequency ever since alpha support for IPv6 was first added in k8s v1.9. While Kubernetes has supported IPv6-only clusters …
Kubernetes 1.23: The Next Frontier
Tuesday, December 07, 2021 in Blog
Authors: Kubernetes 1.23 Release Team We’re pleased to announce the release of Kubernetes 1.23, the last release of 2021! This release consists of 47 enhancements: 11 enhancements have graduated to stable, 17 enhancements are moving to beta, and 19 …
Contribution, containers and cricket: the Kubernetes 1.22 release interview
Wednesday, December 01, 2021 in Blog
Author: Craig Box (Google) The Kubernetes release train rolls on, and we look ahead to the release of 1.23 next week. As is our tradition, I'm pleased to bring you a look back at the process that brought us the previous version. The release team for …
Quality-of-Service for Memory Resources
Friday, November 26, 2021 in Blog
Authors: Tim Xu (Tencent Cloud) Kubernetes v1.22, released in August 2021, introduced a new alpha feature that improves how Linux nodes implement memory resource requests and limits. In prior releases, Kubernetes did not support memory quality …