Authors: Filip Křepinský (Red Hat), Morten Torkildsen (Google), Ravi Gudimetla (Apple) Ensuring the disruptions to your applications do not affect its availability isn’t a simple task. Last month’s release of Kubernetes v1.26 lets you specify an unhealthy pod eviction policy for PodDisruptionBudgets (PDBs) to help you maintain that availability during node management operations. In this Read more about Blog: Kubernetes 1.26: Eviction policy for unhealthy pods guarded by PodDisruptionBudgets[…]

Author: Roman Bednář (Red Hat) The v1.25 release of Kubernetes introduced an alpha feature to change how a default StorageClass was assigned to a PersistentVolumeClaim (PVC). With the feature enabled, you no longer need to create a default StorageClass first and PVC second to assign the class. Additionally, any PVCs without a StorageClass assigned can Read more about Blog: Kubernetes 1.26: Retroactive Default StorageClass[…]

Author: Takafumi Takahashi (Hitachi Vantara) Kubernetes v1.26, released last month, introduced an alpha feature that lets you specify a data source for a PersistentVolumeClaim, even where the source data belong to a different namespace. With the new feature enabled, you specify a namespace in the dataSourceRef field of a new PersistentVolumeClaim. Once Kubernetes checks that Read more about Blog: Kubernetes v1.26: Alpha support for cross-namespace storage data sources[…]

Authors: Aldo Culquicondor (Google) The Kubernetes 1.26 release includes a stable implementation of the Job controller that can reliably track a large amount of Jobs with high levels of parallelism. SIG Apps and WG Batch have worked on this foundational improvement since Kubernetes 1.22. After multiple iterations and scale verifications, this is now the default Read more about Blog: Kubernetes 1.26: Job Tracking, to Support Massively Parallel Batch Workloads, Is Generally Available[…]

Author: Francesco Romani (Red Hat) The CPU Manager is a part of the kubelet, the Kubernetes node agent, which enables the user to allocate exclusive CPUs to containers. Since Kubernetes v1.10, where it graduated to Beta, the CPU Manager proved itself reliable and fulfilled its role of allocating exclusive CPUs to containers, so adoption has Read more about Blog: Kubernetes v1.26: CPUManager goes GA[…]

Author: Wei Huang (Apple), Abdullah Gharaibeh (Google) Kubernetes 1.26 introduced a new Pod feature: scheduling gates. In Kubernetes, scheduling gates are keys that tell the scheduler when a Pod is ready to be considered for scheduling. What problem does it solve? When a Pod is created, the scheduler will continuously attempt to find a node Read more about Blog: Kubernetes 1.26: Pod Scheduling Readiness[…]

Authors: Fabio Bertinatto (Red Hat), Hemant Kumar (Red Hat) Delegation of fsGroup to CSI drivers was first introduced as alpha in Kubernetes 1.22, and graduated to beta in Kubernetes 1.25. For Kubernetes 1.26, we are happy to announce that this feature has graduated to General Availability (GA). In this release, if you specify a fsGroup Read more about Blog: Kubernetes 1.26: Support for Passing Pod fsGroup to CSI Drivers At Mount Time[…]

Authors: Joe Betz (Google), Cici Huang (Google) In Kubernetes 1.26, the 1st alpha release of validating admission policies is available! Validating admission policies use the Common Expression Language (CEL) to offer a declarative, in-process alternative to validating admission webhooks. CEL was first introduced to Kubernetes for the Validation rules for CustomResourceDefinitions. This enhancement expands the Read more about Blog: Kubernetes 1.26: Introducing Validating Admission Policies[…]