Posts in 2025
Kubernetes 1.33: Volume Populators Graduate to GA
By Danna Wang (Google) Sunny Song (Google) | Thursday, May 08, 2025 in Blog
Kubernetes volume populators are now generally available (GA)! The AnyVolumeDataSource feature gate is treated as always enabled for Kubernetes v1.33, which means that users can specify any appropriate custom resource as the data source of a …
Kubernetes v1.33: From Secrets to Service Accounts: Kubernetes Image Pulls Evolved
By Anish Ramasekar (Microsoft) | Wednesday, May 07, 2025 in Blog
Kubernetes has steadily evolved to reduce reliance on long-lived credentials stored in the API. A prime example of this shift is the transition of Kubernetes Service Account (KSA) tokens from long-lived, static tokens to ephemeral, automatically …
Kubernetes v1.33: Fine-grained SupplementalGroups Control Graduates to Beta
By Shingo Omura (LY Corporation) | Tuesday, May 06, 2025 in Blog
The new field, supplementalGroupsPolicy, was introduced as an opt-in alpha feature for Kubernetes v1.31 and has graduated to beta in v1.33; the corresponding feature gate (SupplementalGroupsPolicy) is now enabled by default. This feature enables to …
Kubernetes v1.33: Prevent PersistentVolume Leaks When Deleting out of Order graduates to GA
By Deepak Kinni (Broadcom) | Monday, May 05, 2025 in Blog
I am thrilled to announce that the feature to prevent PersistentVolume (or PVs for short) leaks when deleting out of order has graduated to General Availability (GA) in Kubernetes v1.33! This improvement, initially introduced as a beta feature in …
Kubernetes v1.33: Mutable CSI Node Allocatable Count
By Eddie Torres (Amazon Web Services) | Friday, May 02, 2025 in Blog
Scheduling stateful applications reliably depends heavily on accurate information about resource availability on nodes. Kubernetes v1.33 introduces an alpha feature called mutable CSI node allocatable count, allowing Container Storage Interface (CSI) …
Kubernetes v1.33: New features in DRA
By Morten Torkildsen (Google) Patrick Ohly (Intel) | Thursday, May 01, 2025 in Blog
Kubernetes Dynamic Resource Allocation (DRA) was originally introduced as an alpha feature in the v1.26 release, and then went through a significant redesign for Kubernetes v1.31. The main DRA feature went to beta in v1.32, and the project hopes it …
Kubernetes v1.33: Storage Capacity Scoring of Nodes for Dynamic Provisioning (alpha)
By Yuma Ogami (Cybozu) | Wednesday, April 30, 2025 in Blog
Kubernetes v1.33 introduces a new alpha feature called StorageCapacityScoring. This feature adds a scoring method for pod scheduling with the topology-aware volume provisioning. This feature eases to schedule pods on nodes with either the most or …
Kubernetes v1.33: Image Volumes graduate to beta!
By Sascha Grunert (Red Hat) | Tuesday, April 29, 2025 in Blog
Image Volumes were introduced as an Alpha feature with the Kubernetes v1.31 release as part of KEP-4639. In Kubernetes v1.33, this feature graduates to beta. Please note that the feature is still disabled by default, because not all container …
Kubernetes v1.33: HorizontalPodAutoscaler Configurable Tolerance
By Jean-Marc François (Google) | Monday, April 28, 2025 in Blog
This post describes configurable tolerance for horizontal Pod autoscaling, a new alpha feature first available in Kubernetes 1.33. What is it? Horizontal Pod Autoscaling is a well-known Kubernetes feature that allows your workload to automatically …
Kubernetes v1.33: User Namespaces enabled by default!
By Rodrigo Campos Catelin (Microsoft), Giuseppe Scrivano (Red Hat), Sascha Grunert (Red Hat) | Friday, April 25, 2025 in Blog
In Kubernetes v1.33 support for user namespaces is enabled by default. This means that, when the stack requirements are met, pods can opt-in to use user namespaces. To use the feature there is no need to enable any Kubernetes feature flag anymore! In …