Learn Kubernetes Weekly issue 191 · 8 Jul 2026

What 4.4% GPU Utilization Means, GKE IP Exhaustion Fix, Evicting MCP Calls, Kubernetes Feedback Loops, You Don’t Have a GIL Problem

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Articles

1. What Does 4.4% GPU Utilization Actually Mean?

   medium.com

   This article explains why low GPU utilization during LLM inference can be normal by breaking down prefill, decode, memory bandwidth limits, batching, and GKE B200 benchmark numbers.

2. GKE IP exhaustion fixed: the Class E migration guide

   rack2cloud.com

   This tutorial shows how to fix GKE pod IP exhaustion without rebuilding the VPC by adding a Class E secondary range, creating a new node pool, and draining workloads onto nodes that use the new pod CIDR.

4. The feedback loops behind Kubernetes

   planetscale.com

   This article explains Kubernetes operators as feedback controllers, connecting reconciliation, informers, queues, spec/status, and self-healing behavior to database operations.

Tutorials

Kubernetes jobs

1. • Data Engineer with Inter

   • Salary: $27K to $201.3K a year

   • Location: based in the office in Belo Horizonte, BR

   • Tech stack: Kubernetes, Kubernetes, AWS, alerting, CI/CD, Git, compliance, LGPD, security, AWS S3

2. • Software Engineer with Inter

   • Salary: $47.97K to $257.4K a year

   • Location: based in the office in Belo Horizonte, BR

   • Tech stack: Kubernetes, Kubernetes, EKS, AWS, observability, CI/CD, Git, IaC, Containers, Redis

3. • Software Engineer with GoFasti

   • Salary: $24K to $45.6K a year

   • Location: remote from

   • Tech stack: Kubernetes, Kubernetes, Docker, monitoring, logging, Git, JDK, React, Maven, Angular

4. • Software Engineer with GoFasti

   • Salary: $2K to $3.8K a year

   • Location: remote from

   • Tech stack: Kubernetes, Kubernetes, AWS, Docker, Git, Maven, Redis, MongoDB, MySQL, Spring Boot

5. • Site Reliability Engineer with Moniepoint Group

   • Salary: $26.1K to $193.3K a year

   • Location: remote from

   • Tech stack: Kubernetes, Kubernetes, EKS, GKE, GCP, OpenTelemetry, metrics, New Relic, distributed traces, observability

Discover more Kubernetes jobs on Kube Careers →

Code & tools

1. Git Change Operator

   github.com/mihaigalos

   git-change-operator is a Kubernetes operator that enables automated Git operations from within clusters through GitCommit and PullRequest custom resources.

2. Kubetail: real-time Kubernetes log dashboard

   github.com/kubetail-org

   Kubetail is a Kubernetes logging tool that streams workload logs into a browser or terminal, merges multi-container logs into one timeline, and works without sending logs to an external service.

3. KEDA GPU Scaler

   github.com/pmady

   KEDA GPU Scaler is a KEDA external scaler that reads NVIDIA GPU metrics through NVML and autoscalers vLLM, Triton, training jobs, and custom inference workloads without requiring Prometheus.

Other interesting projects:

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Kubernetes call for papers

1. ContainerDays & AI Context Singapore

   The Call For Paper is open until 31 July 2026 at UTC. More info →

   • Location: Singapore, SG

   • In-person conference organized by ContainerDays.

   • The conference starts on the 28 October 2026.

   • Apply here

6. OmniOpenCon 2026

   The Call For Paper is open until 31 August 2026 at UTC. More info →

   • Location: Bucharest, RO

   • In-person conference organized by OmniOpenCon.

   • The conference starts on the 18 October 2026.

   • Apply here

7. Cloud Native AI Summit Europe

   The Call For Paper is open until 14 August 2026 at UTC. More info →

   • Location: Paris, FR

   • In-person conference organized by mate.dev.

   • The conference starts on the 3 December 2026.

   • Apply here

8. Cloud Security Space 2026

   The Call For Paper is open until 15 August 2026 at UTC. More info →

   • Location: Buenos Aires, AR

   • In-person conference organized by Cloud Security Space.

   • The conference starts on the 9 October 2026.

   • Apply here

9. Monster Scale Summit 2027

   The Call For Paper is open until 28 August 2026 at UTC. More info →

   • This is a virtual event

   • Online conference organized by ScyllaDB.

   • The conference starts on the 11 March 2027.

   • Apply here

That wraps things up.

Back next Wednesday.

— Gulcan

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