Learn Kubernetes Weekly issue 153 · 14 Oct 2025
Why Environments Beat Clusters, Image Compatibility, Terraform to Crossplane, Kube-State-Metrics, Optimising Dev Tooling
This issue is brought to you by Testkube - your app is Kubernetes-native, your testing should be too. Run any kind of test automation with the help of the platform built for it.
Articles
Why Environments Beat Clusters For Dev Experience
medium.com
This article argues that developers think in terms of environments, not clusters, and shows why workflows should focus on promotions (QA → staging → prod) and not raw deployments.
Test Orchestration: You're Doing It, You Just Don’t Know It
testkube.io
This guide explains why duct-taped CI/CD scripts don’t scale and how purposeful orchestration unlocks sustainable Continuous Testing.
sponsored
Image Compatibility In Cloud Native Environments
kubernetes.io
This article explains how Kubernetes integrates image compatibility metadata via Node Feature Discovery (NFD), enabling workloads to specify and validate required host OS, kernel modules, and hardware features before scheduling.
From Terraform to Crossplane: Real-World IaC in Kubernetes for AWS
blog.diatomlabs.com
This tutorial shows how to implement Crossplane on AWS EKS for infrastructure as code, covering setup, custom API design, and governance strategies.
Why Kube-State-Metrics Matters for Kubernetes Observability
medium.com
This article explains how to deploy and use Kube-State-Metrics to monitor Kubernetes object states via Prometheus for cluster observability.
Keep your existing API testing tool. Run it at scale in Kubernetes
Testkube turns hours of sequential tests into minutes of parallel execution.
Whether you're handling 1M+ requests, managing air-gapped deployments, or scaling browser tests, Testkube orchestrates it all in Kubernetes.
Tutorials
Optimising Kubernetes deployment with local continuous development tooling
gawbul.medium.com
This article shows how to use Skaffold and local dev workflows to shorten the feedback loop when coding for Kubernetes, enabling you to build, deploy and test changes continuously on a local cluster.
Building AI-Assisted Test Workflows with Testkube MCP and GitHub Copilot
testkube.io
This guide covers how Testkube MCP + GitHub Copilot turn testing into a conversational, intelligent workflow, briding the gap between AI assistants and your testing infrastructure, moving AI from “advice only” to actually executing, debugging, and fixing tests.
sponsored
Vitalii Horbachov explains how Agoda built macOS VZ Kubelet, a custom solution that registers macOS hosts as Kubernetes nodes and spins up macOS VMs using Apple's native virtualization framework. He details their journey from managing 200 Mac minis with bash scripts to a Kubernetes-native approach that handles 20,000 iOS tests at scale.
You will learn:
- How to build hybrid runtime pods that combine macOS VMs with Docker sidecar containers for complex CI/CD workflows
- Custom OCI image format implementation for managing 55-60GB macOS VM images with layered copy-on-write disks and digest validation
- Networking and security challenges including Apple entitlements, direct NIC access, and implementing kubectl exec over SSH
- Real-world adoption considerations including MDM-based host lifecycle management and the build vs. buy decision for Apple infrastructure at scale
Kubernetes jobs
Software Engineer with Coder
Salary: $104K to $194K a year
Location: remote from the United States of America, Canada
Tech stack: Kubernetes, PostgreSQL, Grafana, GCP, Go, Javascript, Typescript, Kotlin, Prometheus, GitHub Actions
DevSecOps Engineer with Anduril Industries
Salary: $146K to $194K a year
Location: based in the office in Costa Mesa, CA, USA
Tech stack: Kubernetes
Software Engineer with Anduril Industries
Salary: $191K to $253K a year
Location: based in the office in Costa Mesa, CA, USA
Tech stack: Kubernetes, Docker, Go, Python, Rust, C++, C
DevSecOps Engineer with Datadog
Salary: $187K to $240K a year
Location: based in the office (and remote from home) in Boston, MA / Denver, CO / New York, NY, USA
Tech stack: Kubernetes, Datadog, AWS, Azure, GCP, Docker, Terraform, Go, Python
Software Engineer with Redpoint Global
Salary: $150K to $175K a year
Location: based in the office (and remote from home) in Knoxville, TN, USA
Tech stack: Kubernetes, RabbitMQ, Kafka, Redis, AWS, Azure, GCP, Docker, SQL, C#
Discover more Kubernetes jobs on Kube Careers →
Code & tools
github.com/docent-net
This project implements a bare-metal autoscaler that scales by doing
kubectl drain+poweroffon underutilized nodes and using Wake-on-LAN / IPMI to power nodes up.It treats node types by labels instead of predefined “node groups.”
github.com/Project-HAMi
This plugin extends the NVIDIA Device Plugin to let Kubernetes pods scheduled by Volcano share GPUs as vGPUs while ensuring hard isolation of resources using HAMi-core or dynamic-MIG modes.
KAI Scheduler – Kubernetes Native AI Workload Scheduler
github.com/NVIDIA
KAI Scheduler is a Kubernetes-native scheduler optimized for large-scale AI/ML workloads.
It supports batch scheduling, hierarchical queues, GPU sharing, and dynamic resource allocation to maximize utilization and fairness across tenants.
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.
KubeDiagrams – Kubernetes Architecture Diagram Generator
github.com/philippemerle
KubeDiagrams reads Kubernetes manifests, Helm charts, helmfiles or live cluster state and produces visual architecture diagrams (DOT, SVG, PNG, PDF, etc.), with support for custom resources, clustering, and interactive views.
Other interesting projects:
Upcoming Kubernetes events
Oct
16
Understanding the Kubernetes API: From Request Lifecycle to Server-Side Apply
Online webinar organized by LearnKube.
This is a virtual event
This is a free event.
Oct
16
Securing Containers at Scale & How attackers exploit containerized apps
In-person meetup organized by Cloud Native Calgary.
Location: Calgary, CA
This is a free event.
Oct
16
Optimizing Kubernetes workloads for price/performance
In-person meetup organized by Kubernetes and Cloud Native North Dallas.
Location: Plano, TX, USA
This is a free event.
Oct
20
Advanced Kubernetes course (Boston)
In-person workshop organized by Learnk8s.
Location: Boston, MA, USA
This event requires an entrance fee
Oct
21
Kubernetes Community Days UK Edinburgh 2025
In-person meetup organized by KCD UK.
Location: Edinburgh, UK
This event requires an entrance fee
Nov
5
In-person conference organized by CloserStill.
Location: Paris, FR
This is a free event.
Kubernetes call for papers
expired
The Call For Paper was open until 10 November 2025 at UTC. More info →
This is a virtual event
Online conference organized by Cloud Native LATAM.
The conference starts on the 27 November 2025.
- Apply here
expired
The Call For Paper was open until 3 November 2025 at UTC. More info →
Location: Amsterdam, NL
In-person conference organized by Nirmata.
The conference starts on the 23 March 2026.
- Apply here
expired
The Call For Paper was open until 2 November 2025 at UTC. More info →
Location: Los Angeles, CA, USA
In-person conference organized by Devopsdays.
The conference starts on the 7 March 2025.
- Apply here
expired
The Call For Paper was open until 31 October 2025 at UTC. More info →
Location: Porto Alegre, BR
In-person conference organized by Devopsdays.
The conference starts on the 29 November 2025.
- Apply here
expired
The Call For Paper was open until 20 October 2025 at UTC. More info →
Location: Salvador, BR
In-person conference organized by Devopsdays.
The conference starts on the 6 December 2025.
- Apply here
Until next time!
— Gulcan