Articles

How to deploy Karpenter on Google Cloud Platform (and why you might want vCluster Auto Nodes instead)

Karpenter has become the gold standard for Kubernetes autoscaling on AWS, but what about GCP? This guide shows you how to set it up and introduces a better way.

Announcing the Infrastructure Tenancy Platform for NVIDIA DGX—plus what we learned from 100+ conversations at KubeCon about GPU efficiency, isolation, and the future of AI on Kubernetes.

KubeCon Atlanta 2025 was packed with energy, launches, and conversations that shaped the future of AI infrastructure. At Booth #421, we officially launched the Infrastructure Tenancy Platform for NVIDIA DGX—a Kubernetes-native platform designed to maximize GPU efficiency across private AI supercomputers, hyperscalers, and neoclouds. Here's what happened, what we announced, and why it matters for teams scaling AI workloads.

Bootstrapping Kubernetes from scratch, no host cluster, no external dependencies.

Kubernetes multi-tenancy just got simpler. With vCluster Standalone, you can bootstrap a full Kubernetes control plane directly on bare metal or VMs, no host cluster required. This walkthrough shows how to install, join worker nodes, and run virtual clusters on a single lightweight foundation, reducing vendor dependencies and setup complexity for platform and infrastructure teams.

Auto Nodes extend Private Nodes with provider-agnostic, automated node provisioning and scaling across clouds, on-prem, and bare metal.

Kubernetes makes pods elastic, but node scaling often breaks outside managed clouds. With vCluster Platform 4.4 + v0.28, Auto Nodes fix that gap, combining isolation, elasticity, and portability. Learn how Auto Nodes extend Private Nodes with automated provisioning and dynamic scaling across any environment.

A technical walkthrough of Private Nodes in vCluster v0.27 and how they enable true single-tenant Kubernetes clusters.

Private Nodes in vCluster v0.27 take Kubernetes multi-tenancy to the next level by enabling fully isolated, dedicated clusters. In this deep dive, we walk through setup, benefits, and gotchas, from creating a vCluster with Private Nodes to joining worker nodes and deploying workloads. If you need stronger isolation, simpler lifecycle management, or enterprise-grade security, this guide covers how Private Nodes transform vCluster into a powerful single-tenant option without losing the flexibility of virtual clusters.

How vCluster Balances Kubernetes Cost Reduction With Real-World Performance

Can you really save millions on Kubernetes infrastructure without compromising performance? Yes, with vCluster. In this blog, we break down how virtual clusters reduce control plane overhead, unlock higher node utilization, and simplify multi-tenancy, all while maintaining lightning-fast performance.

Container breakouts on GPU nodes are real, and just three lines of code can be enough. Discover how vNode neutralizes vulnerabilities like NVIDIAScape without relying on VMs.

NVIDIAScape (CVE-2025-23266) is a critical GPU-related vulnerability that allows attackers to break out of containers and gain root access. While some respond by layering in virtual machines, this blog walks through a better approach, how vNode uses container-native sandboxing to neutralize such attacks at the kernel level without sacrificing performance. Includes a step-by-step replication of the exploit, and a demo of how vNode prevents it.

Why Namespace Isolation Falls Short for GPU Workloads, and How Multi-Tenancy with vCluster Solves It

Managing AI workloads on bare metal Kubernetes with GPUs presents unique challenges, from weak namespace isolation to underutilized resources and operational overhead. This blog explores the pitfalls of namespace-based multi-tenancy, why running a separate cluster per team is expensive, and how vCluster enables secure, efficient, and autonomous GPU sharing for AI teams.

Octarine Unleashed: How Kubernetes 1.33 Changes Everything for Devs & Platform Teams

Kubernetes 1.33, codenamed "Octarine: The Color of Magic", lands with 64 feature updates. This blog dives into the most impactful ones and shows how to try them immediately with vCluster. From in-place pod resizing to ClusterTrustBundle, here’s what’s new.

Why Moving from VMware to Kubernetes-native Infrastructure is Critical for Modern Enterprises

Discover why enterprises in 2025 are shifting from traditional VMware based virtual machines to modern, Kubernetes-native architectures. Learn how adopting Kubernetes closer to bare metal simplifies infrastructure, reduces costs, and enhances scalability and efficiency.

Well, well, well, KubeCon + CloudNativeCon EU 2025 has come to an end, and we made so many friends and memories! Let's review some of the exciting things our team did at KubeCon: Platinum Sponsors at Platform Engineering Day: The buzz around platform engineering and internal deve...

Multi-tenancy in Kubernetes has been an ongoing challenge for organizations looking to optimize their cloud-native infrastructure. Over the years, the approach to multi-tenancy has evolved, from simple namespace isolation to virtual clusters and, more recently, full-fledged inter...

In a fast-paced development environment, having an isolated and ephemeral environment to test changes for every pull request (PR) is a game-changer. In this blog, I’ll walk you through setting up ephemeral PR environments using vCluster, enabling seamless testing of your applicat...

Multi-tenancy in Kubernetes is not a new cooncept; it simply refers to creating isolated spaces for different users, teams, or projects. Many organizations begin by using namespaces to isolate workloads, teams, or projects. However, they soon encounter limitations, such as challe...

Attending FOSDEM for the first time was an amazing experience, it was right into the heart of the open-source community. The event was full of energy, innovation, and collaboration, and I’m excited to share some highlights from our experience, especially our time at the DevPod st...

Introduction With the release of vCluster 0.22, managing TLS certificates for virtual clusters has become much easier with the integration of cert-manager. This new built in integration allows you to issue and manage certificates within virtual clusters while leveraging cert-mana...

When deploying a vCluster, you might need to ensure it runs on specific nodes, such as GPU-enabled nodes or production-specific nodes. This can be achieved using node selectors, which limit the scheduling of the vCluster control plane pods to nodes with specific labels. Example C...

As Kubernetes usage grows, optimizing resource usage is more critical than ever. The Native Sleep Mode introduced in vCluster 0.22 provides a neat and easy solution for cost savings and efficient resource management. In this blog, we’ll dive deep into the functionality of Sleep M...

The Kubernetes v1.32 release introduces significant advancements in resource management, security, scheduling, and observability. With a mix of 13 graduating features, 12 beta enhancements, and 19 got added in alpha, Kubernetes continues to refine its capabilities for production-...

We all agree that Kubernetes is running almost everywhere now, and nearly every other company has adopted it. The next step companies are taking is virtualizing this layer and creating multiple virtual Kubernetes clusters on a single host cluster. This is what we call multi-tenan...

KubeCon India 2024 - Yashobhoomi, New Delhi

So, it finally happened! The first-ever KubeCon in India took place at Yashobhoomi, Delhi, on the 11th and 12th of December! Loft Labs was proud to be one of the sponsors for this historic event. The excitement and enthusiasm I witnessed were next level. There were so many WOW mo...

Platform Engineering Day, ArgoCon, and WasmCon. vCluster cloud and platform 4.1 launch, and more. Book signing by Marc Boorshtein, Mauricio Salatino and Artem Lajko.

One of the most powerful features of Kubernetes is its ability to automatically scale components based on workload demands. This autoscaling capability includes several tools, such as the Horizontal Pod Autoscaler (HPA), Vertical Pod Autoscaler (VPA), and Cluster Autoscaler. In t...

Kubernetes 1.31 has been released, bringing with it significant contributions. This large project continually adds new features during each release cycle, with new additions to alpha to reflect the ongoing innovation and optimization within Kubernetes. The 1.31 release team has i...

vCluster is an open source tool that helps you create isolated Kubernetes clusters within a single cluster. Let’s say you are part of a platform team responsible for building a platform that will hand out Kubernetes clusters to hundreds of teams within your organization. One tedi...