Learn Kubernetes Weekly issue 199 · 2 Sept 2026
Batch Compute with Kueue, Server-Side Apply, Migrating from SPDY to WebSockets, The Reconciliation Loop, Securing CI/CD Lessons from Cilium
This newsletter is brought to you by LearnKube — master Kubernetes with hands-on training designed for engineers who want to learn the smart way.
Articles
How Netflix Simplified Batch Compute with Kueue
medium.com
This case study shows how Netflix moved millions of batch jobs from its homegrown queueing system to Kueue, without the people submitting those jobs noticing any change.
Server-side apply: what happens when you run kubectl apply
learnkube.com
This article explains what really happens when you run kubectl apply, and how server-side apply moves field ownership into the API server so Helm, Argo CD and HPAs hit conflicts.
Kubernetes is migrating from SPDY to WebSockets
kftray.app
This article explains the technical transition of Kubernetes port-forwarding and streaming commands from the deprecated SPDY protocol to WebSockets to improve proxy compatibility.
How I Learned to Stop Worrying and Love the Reconciliation Loop
medium.com
This article explains how to use Kubernetes Custom Resource Definitions and the reconciliation loop to manage, scale, and monitor multiple concurrent AI coding agents.
Securing CI/CD for an open source project: lessons from Cilium
cilium.io
This case study shows how Cilium implements defense-in-depth supply chain security for open source CI/CD.
It covers access controls, dependency pinning, credential isolation, and cryptographic verification.
The Four-Layer Stack for Running Agentic AI on Kubernetes
blog.azinsider.net
This article explains how to deploy agentic AI on Kubernetes using a four-layer architectural stack.
It details model inference, fine-tuning, and agent orchestration using tools like KAITO, Ray, and MCP.
Articles worth checking out:
This four-day advanced kubernetes course teaches you:
- networking,
- autoscaling,
- security,
- and scheduling
through hands-on labs, led by engineers who run Kubernetes clusters in production every day.
Tutorials
Claude Code: creating a Kubernetes debugging AI Agent for VictoriaMetrics
setevoy.substack.com
This tutorial shows how to build a Kubernetes debugging AI agent as a Claude Code plugin, with its own marketplace, skills for querying VictoriaMetrics and controlled tool permissions.
Building a Kubernetes Raspberry Pi Homelab with K3s
medium.com
This tutorial teaches how to build a Raspberry Pi K3s homelab by preparing nodes, enabling cgroups, configuring networking, joining agents, and deploying a Skaffold demo app.
medium.com
This guide shows you how to architect a multi-cluster Kubernetes environment using Rancher for governance, vCluster for cost-efficient isolation, and Kargo for automated GitOps promotion pipelines.
Authentication between microservices using Kubernetes identities
learnkube.com
This tutorial shows how two in-cluster services can authenticate each other with Service Account tokens and the TokenReview API, then makes it safer with audience-bound projected tokens.
Kube Select takes one bold Kubernetes hypothesis and tests it with an expert.
In the first episode, Salman Iqbal and Bart Farrell ask whether most organizations have an observability problem or a decision-making problem.
Henrik Rexed, Senior Staff Engineer at Dynatrace, challenges the original claim. Teams can collect metrics, logs, and traces, but that telemetry needs system relationships, ownership, and deployment history to support a confident decision.
In this episode:
- Why telemetry without context slows incident response
- How SLOs, ownership, and deployment events guide troubleshooting
- When more metrics increase cost without improving decisions
- How AI agents can investigate incidents without replacing human judgment
Kubernetes jobs
Site Reliability Engineer with SentinelOne
Salary: $156K to $200K a year
Location: remote from
Tech stack: Kubernetes, Kubernetes, AWS, GCP, incident management, OpenTelemetry, alerting, monitoring, ELK, Prometheus
Software Engineer with Roku
Salary: $59.9K to $297K a year
Location: based in the office in Austin, TX, USA
Tech stack: Kubernetes, Kubernetes, AWS, Docker, GCP, On-premise, alerting, monitoring, observability, Grafana
Software Engineer with Roku
Salary: $141.3K to $360.7K a year
Location: based in the office (and remote from home) in San Jose, CA, USA
Tech stack: Kubernetes, Kubernetes, AWS, Docker, monitoring, observability, Datadog, Grafana, Prometheus, Gitlab runners
Software Engineer with Roku
Salary: US$37 to US$385K a year
Location: based in the office (and remote from home) in Manchester, GB
Tech stack: Kubernetes, Kubernetes, AWS, Azure, Docker, GCP, Jenkins, Terraform, Airflow, Spark
Software Engineer with Roku
Salary: $108K to $264K a year
Location: based in the office in Seoul, KR
Tech stack: Kubernetes, Kubernetes, AWS, Docker, GCP, Distributed Tracing, Grafana, ELK stack, Prometheus, CI/CD
Discover more Kubernetes jobs on Kube Careers →
Code & tools
l9gpu: GPU telemetry with workload attribution
github.com/last9
l9gpu is a GPU telemetry agent that emits OpenTelemetry metrics with workload attribution built in, so you can see which pod, team or Slurm job is using each NVIDIA, AMD or Intel GPU.
github.com/federicolepera
Praesto is a Kubernetes-native operator and CSI driver that automates the caching and mounting of AI model artifacts from Hugging Face into workloads using local node storage or shared PVCs.
kubectl-x: Run kubectl across every context at once
github.com/platformersdev
kubectl-x is a kubectl plugin that runs the same read-only command against every context in your kubeconfig in parallel, and can merge the results into valid JSON or YAML.
github.com/alexmt
A native iOS and Android app for monitoring and managing Argo CD deployments from your phone.
diffyml - structural YAML diff with Kubernetes awareness
github.com/szhekpisov
diffyml compares YAML files by structure instead of line by line, and knows enough about Kubernetes resources to match them up even when the order changes.
Other interesting projects:
Upcoming Kubernetes events
Sept
4
In-person conference organized by Container Days.
Location: Hamburg, DE
This event requires an entrance fee
Use CDS26 MEDIA PARTNER LEARNKUBE to get 20% off
Sept
4
In-person conference organized by Devopsdays.
Location: Graz, AT
This event requires an entrance fee
Sept
8
In-person conference organized by Forward CloudSec.
Location: London, GB
This event requires an entrance fee
Sept
8
In-person conference organized by Devopsdays.
Location: Portland, OR, USA
This event requires an entrance fee
Use FRIENDSOFKUBEEVENTS to get 20% off
Sept
9
In-person conference organized by CNCF.
Location: Shanghai, CN
This event requires an entrance fee
Sept
10
Online workshop organized by LearnKube.
This is a virtual event
This event requires an entrance fee
Kubernetes call for papers
4
days
Kubernetes Community Days Florida 2026 Miami
The Call For Paper is open until 7 September 2026 at UTC. More info →
Location: Miami, FL, USA
In-person conference organized by KCD Florida.
The conference starts on the 11 December 2026.
- Apply here
39
days
KubeCon + CloudNativeCon Europe 2027
The Call For Paper is open until 12 October 2026 at UTC. More info →
Location: Barcelona, ES
In-person conference organized by CNCF.
The conference starts on the 18 March 2027.
- Apply here
27
days
The Call For Paper is open until 30 September 2026 at UTC. More info →
Location: Bengaluru, IN
In-person conference organized by Canonical.
The conference starts on the 15 November 2026.
- Apply here
81
days
The Call For Paper is open until 23 November 2026 at UTC. More info →
Location: Vilnius, LT
In-person conference organized by DATA MINER.
The conference starts on the 27 November 2026.
- Apply here
18
days
The Call For Paper is open until 21 September 2026 at UTC. More info →
Location: Montreal, CA
In-person conference organized by ConFoo.
The conference starts on the 26 February 2027.
- Apply here
15
days
The Call For Paper is open until 18 September 2026 at UTC. More info →
Location: Santa Clara, CA, USA
In-person conference organized by DevNetwork.
The conference starts on the 11 February 2027.
- Apply here
42
days
Global Summit on Data Science and Cloud Computing
The Call For Paper is open until 15 October 2026 at UTC. More info →
Location: Rome, IT
In-person conference organized by Noveltics Group.
The conference starts on the 20 October 2026.
- Apply here
28
days
The Call For Paper is open until 1 October 2026 at UTC. More info →
Location: Amsterdam, NL
In-person conference organized by SREDay.
The conference starts on the 2 November 2026.
- Apply here
36
days
NextGen Intelligence Conference: Data, Cloud & AI
The Call For Paper is open until 9 October 2026 at UTC. More info →
Location: London, GB
In-person conference organized by TechAI.
The conference starts on the 17 November 2026.
- Apply here
Until next time!
— Gulcan