Subscribe

TechnologyNews

From Dockerfile to Kit: the Docker Sandboxes Kit Specification

Docker's Sandbox Kit Specification v3 packages an AI agent's network rules, credentials, and volumes as an ordinary, pinnable OCI image.

Published By From Docker Blog · 1 min read

Agents need containment, and a sandbox is only half of it. Something still has to say which agent runs there, what it gets, and what it may touch. That is a Kit: an ordinary OCI image, so the answer travels with the agent and means the same thing on any conforming runtime. Today we published the Docker Sandbox Kit Specification v3, open source under Apache 2.0 at docker/sandbox-kit-spec . Here is why I wrote it.

I run a lot of agents. They write code, run tests, install dependencies, call APIs, and work on infrastructure while I do something else.

This is an excerpt. The full article is published by Docker Blog.

Continue reading at Docker Blog
AI/MLOpen Container Initiative (OCI)Sandbox Kitsandboxessecurity
Technology

Kubernetes v1.36: In-Place Vertical Scaling for Pod-Level Resources Graduates to Beta

Following the graduation of Pod-Level Resources to Beta in v1.34 and the General Availability (GA) of In-Place Pod Vertical Scaling in v1.35, the Kubernetes community is thrilled to announce that In-Place Pod-Level Resources Vertical Scaling has graduated to Beta in v1.36! This feature is now enabled by default via the InPlacePodLevelResourcesVerticalScaling feature gate. It allows users to update the aggregate Pod resource budget (.spec.resources) for a running Pod, often without requiring a container restart.

19 Oct 2026 · 3 min readTechnology

Kubernetes v1.36: Pod-Level Resource Managers (Alpha)

Kubernetes v1.36 introduces Pod-Level Resource Managers as an alpha feature, bringing a more flexible and powerful resource management model to performance-sensitive workloads. This enhancement extends the kubelet's Topology, CPU, and Memory Managers to support pod-level resource specifications (.spec.resources), evolving them from a strictly per-container allocation model to a pod-centric one. Why do we need pod-level resource managers?When running performance-critical workloads such as machine learning (ML) training, high-frequency trading applications, or low-latency databases, you often need exclusive, NUMA-aligned resources for your primary application containers to ensure predictable performance.

19 Oct 2026 · 5 min readTechnology

Kubernetes v1.36: Admission Policies That Can't Be Deleted

If you've ever tried to enforce a security policy across a fleet of Kubernetes clusters, you've probably run into a frustrating chicken-and-egg problem. Your admission policies are API objects, which means they don't exist until someone creates them, and they can be deleted by anyone with the right permissions. There's always a window during cluster bootstrap where your policies aren't active yet, and there's no way to prevent a privileged user from removing them.

19 Oct 2026 · 5 min read