Learn Kubernetes Weekly issue 201 · 16 Sept 2026
Finding Race Conditions Like a Detective, Source Hydrated Infrastructure, From Kubernetes Dashboard to Headlamp, When is a cluster really full?
This newsletter is brought to you by LearnKube — understand how Kubernetes works, and what to do when it breaks. Live training with 60% hands-on labs.
Articles
Finding a Race Condition in Kuberenetes — Like a Detective
medium.com
This case study walks through a production debugging session where orphaned Kubernetes pods kept blocking new deployments due to a race condition between the job controller, garbage collector, and an undocumented default propagation policy behavior.
Source Hydrated Infrastructure Models (SHIM)
medium.com
This case study shows how to use Source Hydrated Infrastructure Models (SHIM), a GitOps pattern that commits fully rendered infrastructure manifests to Git for explicit auditing and reconciliation.
From Kubernetes Dashboard to Headlamp: Understanding the Transition
kubernetes.io
This article explains what changes when you move from the archived Kubernetes Dashboard to Headlamp, mapping each familiar workflow onto the new UI.
Kubernetes v1.36: Pod-Level Resource Managers
kubernetes.io
This article explains how Kubernetes 1.36 lets the kubelet assign CPU and memory at the pod level, so the main container keeps exclusive NUMA-aligned cores while sidecars share the rest.
When is a cluster really full? Unlocking hidden capacity with the k8s-overcommit Operator
medium.com
This case study shows how Inditex reclaims idle node capacity with an open-source overcommit operator that rewrites pod requests through a mutating webhook, based on priority class.
How We Built a Searchable Chat Archive With OpenSearch, Spring Boot, and Kubernetes
medium.com
This case study shows how a team turned an old chat export into a searchable archive with OpenSearch, a Spring Boot app and a Kubernetes deployment behind HTTPS.
Articles worth checking out:
Moving to Kubernetes? Prepare your team for the move
Your engineers know the current platform. Kubernetes changes how they deploy applications, route traffic, and recover from failures.
LearnKube’s private training prepares your team for that change, with a course tailored to your platform, workloads, and existing knowledge.
Tutorials
Linkerd multicluster: federation, mirroring on GKE
linkerd.io
This tutorial shows how to link three GKE clusters with Linkerd multicluster, mixing federation and mirroring so a service keeps answering even when a whole cluster disappears.
Kubernetes + GitOps from Scratch: A Hands-On Guide with ArgoCD, HPA, and Karpenter
medium.com
This tutorial walks you through a full GitOps setup on minikube, where Argo CD deploys a Go service straight from Git and an HPA scales the pods under load.
Non-deterministic agents pose specific challenges for platform teams in observability, state management, governance, and trust.
Mauricio (Salaboy) Salatino explains why agentic applications behave like distributed multi-agent systems. His test assigned agents to take an order, cook the pizza, deliver it, and charge the customer. One order crossed 15 containers and produced 200 traces.
In this interview:
- Why agent frameworks can recreate monolith scaling and resource contention
- How OpenTelemetry data can measure agent behavior and trust over time
- Why narrowly scoped agents are safer than agents that follow long sequences
- How the platform can become the learning layer that feeds better context back to LLMs
Kubernetes jobs
Machine Learning Engineer with Roku
Salary: US$112.5K to US$209K a year
Location: based in the office (and remote from home) in Cambridge, GB
Tech stack: Kubernetes, Kubernetes, AWS, GCP, metrics, logs, observability, tracing, Trino, Kafka
Platform Engineer with Roku
Salary: $18.23K to $2.64L a year
Location: based in the office (and remote from home) in Bengaluru, IN
Tech stack: Kubernetes, Kubernetes, EKS, AKS, AWS, GKE, Docker, Telemetry, Loki, observability
Site Reliability Engineer with Roblox
Salary: $243.29K to $295.25K a year
Location: based in the office in San Mateo, CA, USA
Tech stack: Kubernetes, Kubernetes, Nomad, Consul, Vault, alerting, monitoring, secrets management, C#, Go
Platform Engineer with Roblox
Salary: $196.75K to $243.29K a year
Location: based in the office in San Mateo, CA, USA
Tech stack: Kubernetes, On-Prem, Kubernetes, Cloud, alerting, monitoring, logging, tracing, ingress gateways, Envoy
DevSecOps Engineer with Iru
Salary: $400 a day
Location: remote from
Tech stack: Kubernetes, Kubernetes, AWS, Azure, GCP, GitHub, CI/CD, GitHub Actions, OAuth, Snyk
Discover more Kubernetes jobs on Kube Careers →
Code & tools
github.com/netobserv
NetObserv deploys an eBPF agent on every node to capture network flows, enrich them with Kubernetes metadata, and export to Loki, Prometheus, Kafka, or IPFIX — with a web console showing topology, raw flows, and traffic metrics.
kpf: a terminal UI for kubectl port-forward
github.com/jessegoodier
kpf is a terminal UI around kubectl port-forward that lets you pick a service from a list and reconnects automatically when a pod restarts or your laptop wakes up.
kubectl tree: see which Kubernetes objects own which
github.com/ahmetb
kubectl tree is a kubectl plugin that follows ownerReferences and prints the whole object tree under a Deployment or custom resource, so you can see what created what.
tfplanctx: compress Terraform plans for AI agents
github.com/pibblokto
tfplanctx turns a Terraform plan into a short, grep-friendly summary so coding agents can review what will change without burning context on raw plan output.
Upcoming Kubernetes events
Sept
21
In-person workshop organized by LearnKube.
Location: London, UK
This event requires an entrance fee
Sept
19
Kubernetes Community Days Gujarat 2026
In-person conference organized by KCD Gujarat.
Location: Ahmedabad, IN
This event requires an entrance fee
Sept
23
Online webinar organized by CNCF Online Programs.
This is a virtual event
This is a free event.
Sept
17
AI Agents in Production with Kubernetes
In-person meetup organized by DevOps Society.
Location: Liverpool, GB
This is a free event.
Sept
23
Your Kubernetes Nodes Are Snowflakes: Making The Host OS Reproducible
In-person meetup organized by SysOps/DevOps Polska Wrocław.
Location: Wrocław, PL
This is a free event.
Kubernetes call for papers
25
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
32
days
The Call For Paper is open until 19 October 2026 at UTC. More info →
Location: Los Angeles, CA, USA
In-person conference organized by SCaLE.
The conference starts on the 1 April 2027.
- Apply here
13
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
67
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
4
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
1
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
32
days
Cloud Native AI + Inference Day Europe
The Call For Paper is open until 19 October 2026 at UTC. More info →
Location: Barcelona, ES
In-person conference organized by CNCF.
The conference starts on the 15 March 2027.
- Apply here
45
days
The Call For Paper is open until 1 November 2026 at UTC. More info →
Location: Los Angeles, CA, USA
In-person conference organized by DevopsDays.
The conference starts on the 2 April 2027.
- Apply here
28
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
Until next time!
— Dan