Learn Kubernetes Weekly issue 165 · 7 Jan 2026

GPU Containers as a Service, Nginx to Envoy for Rate Limiting, Multi-agent Systems, Security Networking, Pinterest Search Infrastructure

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Articles

  1. GPU-based containers as a service

    topofmind.dev

    This article explains how to build a multi-tenant Kubernetes platform for GPU workloads using Kata Containers, custom CDI plugins, and NVLink fabric isolation to run containerized GPU jobs securely in virtual machines.

  2. Kubernetes Ingress Controllers

    docs.google.com

    Which ingress controller fits your needs?

    In this research-backed spreadsheet, you can compare 20+ controllers across protocols, load balancing, authentication, and production features.

    sponsored

  3. Bifrost’s journey from Nginx to Envoy gateway for intelligent rate limiting

    medium.com

    This case study explains how a team switched from Nginx to Envoy Gateway to build smarter and fairer rate-limiting based on user identity instead of IP addresses.

  4. Building Production-Ready Multi-Agent Systems on Kubernetes: Real Lessons from Deploying 11 Specialized AI Agents

    medium.com

    This case study shows how a small team deployed eleven specialized AI agents as Kubernetes custom resources for tasks like network, observability, deployment orchestration and more.

  5. Kubernetes security fundamentals: networking

    securitylabs.datadoghq.com

    This article covers network security fundamentals in Kubernetes, explaining how clusters default to a flat pod network, how network policies enforce segmentation, and best practices like “default deny” and restricting host networking.

  6. Debugging the One-in-a-Million Failure: Migrating Pinterest’s Search Infrastructure to Kubernetes

    medium.com

    This case study explains how Pinterest migrated its search system (Manas) to Kubernetes and tracked down a rare performance issue.

    They found cAdvisor’s memory metric scanning caused huge latency spikes.

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Tutorials

  1. Stretching a Layer 2 network over multiple KubeVirt clusters

    kubevirt.io

    This tutorial teaches how to configure stretched Layer 2 networks between KubeVirt clusters using OVN-Kubernetes for VM connectivity across multiple Kubernetes environments.

  2. Reducing Feature Environment Costs with KEDA and Prometheus in Kubernetes

    pierreraffa.medium.com

    This tutorial teaches how to reduce feature environment costs using KEDA with Prometheus metrics to scale deployments to zero during inactivity and scale up based on custom application metrics.

  3. Build your own SaaS cloud platform with Kamaji and GitOps

    medium.com

    This tutorial teaches how to build a SaaS Kubernetes platform using Kamaji for control plane management, Argo CD for GitOps, and Sveltos for multi-cluster automation.

Kubernetes jobs

    • Platform Engineer with AMERICAN SYSTEMS

    • Salary: $155.7K to $260K a year

    • Location: remote from the United States of America

    • Tech stack: Kubernetes, Ansible, Shell, Python, Gitlab, Helm, Rancher

    • Systems Performance Engineer with Datadog

    • Salary: $187K to $240K a year

    • Location: based in the office (and remote from home) in Boston, MA / New York, NY, USA

    • Tech stack: Kubernetes, Datadog, containerd, AWS, Go, Javascript, Rust, C

    • Platform Engineer with Peraton

    • Salary: $112K to $179K a year

    • Location: based in the office in Washington, D.C, USA

    • Tech stack: Kubernetes, Grafana, AWS, Terraform, Shell, Python, Prometheus, Helm, ArgoCD

    • DevSecOps Engineer with Corelight

    • Salary: $221K to $268K a year

    • Location: remote from North America

    • Tech stack: Kubernetes, Go, Splunk

    • DevOps Engineer with Corelight

    • Salary: $158K to $198K a year

    • Location: remote from North America

    • Tech stack: Kubernetes, Grafana, AWS, Azure, GCP, Docker, Terraform, Pulumi, Ansible, Puppet

Discover more Kubernetes jobs on Kube Careers →

Code & tools

  1. VolSync: replicate persistent volumes

    github.com/backube

    VolSync asynchronously replicates Kubernetes persistent volumes between clusters using rsync or rclone.

    It also supports creating backups of persistent volumes via restic.

  2. Benchmark Suite for Gateway API Implementations

    github.com/howardjohn

    This tool provides a comprehensive test suite to evaluate real-world behavior (latency, scale, route propagation, traffic) of Kubernetes Gateway API implementations, beyond basic conformance.

  3. Exospherehost: AI agents infrastructure

    github.com/exospherehost

    This tool helps you build and run distributed AI workflows and autonomous agents on Kubernetes, with a Python SDK, graph-based orchestration, state persistence, and scheduling.

  4. Smesh: Lightweight Kubernetes-Integrated Sidecar Mesh Without Proxies

    github.com/thebsdbox

    smesh is a proof-of-concept service mesh for Kubernetes that utilizes eBPF to intercept and redirect pod traffic to a sidecar proxy.

  5. Helm-controller

    github.com/fluxcd

    helm-controller operator automates Helm chart deployments via GitOps.

    It watches custom HelmRelease objects and performs installs, upgrades, tests, and rollbacks using charts pulled from Git, buckets, or OCI.

Other interesting projects:

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Kubernetes call for papers

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    The Call For Paper is open until 6 March 2026 at UTC. More info →
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    • In-person conference organized by CND Italy.

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Until next time!

— Gulcan

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