Learn Kubernetes Weekly issue 157 · 12 Nov 2025
gRPC with ALB and Traefik, Topology Spread Constraints, Demystifying YAML, Shared Socket with eBPF, Kubernetes Networking Guide
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
saikiranpikili.medium.com
This article walks through how to route gRPC traffic via an AWS ALB into Traefik as the Kubernetes Ingress, and explains why health-checks and protocol mismatches (HTTP/2 vs gRPC) can break things.
When to Adopt Kubernetes: The "Pay Now or Pay Later" Dilemma
testkube.io
Should you adopt Kubernetes now or later?
This guide breaks down the hidden costs, strategic tradeoffs, and timing considerations for startups, scaleups, and enterprises, plus a decision framework to help your team adopt Kubernetes wisely.
sponsored
How to Prevent Failures with Kubernetes Topology Spread Constraints
medium.com
This article explains how Pod Topology Spread Constraints can mis-distribute pods during rolling updates, and shows how using the matchLabelKeys field (like
pod-template-hash) lets Kubernetes keep pods evenly spread even across updates.medium.com
This article explains the three core parts of a Kubernetes YAML file:
- metadata,
- spec,
- and status.
It shows how your YAML declares desired state and how Kubernetes uses that with its reconciliation loop.
Shared Socket: Enhancing Kubernetes Pod Communication with eBPF
medium.com
This article presents Shared Socket, an eBPF-based method that bypasses much of the networking stack to enable fast TCP messaging between pods on the same node using sockmaps and kernel-level redirects.
Autoscaling .NET APIs with KEDA and Kubernetes Metrics
medium.com
This article shows how to use KEDA plus Kubernetes metrics to autoscale .NET APIs in response to event and traffic surges.
Empowering teams to scale Test Automation
Don't let testing slow down your launch velocity.
Break free from CI/CD.
Testkube scales any type of automated testing for Developers, Testers, DevOps, and Platform teams.
Tutorials
Kubernetes Networking Tutorial: A Guide for Developers
freecodecamp.org
This tutorial walks through Kubernetes networking theory and hands-on examples, covering pod connectivity, services, DNS, load balancing, network policies, and common pitfalls.
Unify testing across Dev, QA, and SRE with a Kubernetes-native orchestration platform
testkube.io
The Aspen Group unified QA, Dev, and SRE teams, replacing manual workflows with a scalable, Kubernetes-native testing platform.
Now, testing is automated, versioned, and shared, powering faster releases and stronger cross-team collaboration.
sponsored
How to use eBPF to capture traffic over Cilium VTEP integration
medium.com
This article walks through enabling Cilium VTEP (VXLAN tunnel) to connect external VMs to Kubernetes pods, and using eBPF/XDP + Inspektor Gadget to trace packet headers across that tunnel.
Deploying a .NET Weather Forecast App to AKS Using GitHub Actions and Argo CD
medium.com
This tutorial shows how to deploy a .NET weather forecast app to AKS using GitHub Actions to build/push the container and Argo CD to sync & deploy to the cluster.
Festus Owumi walks through his project of building a lightweight version of Kubernetes in Go. He removed etcd (replacing it with in-memory storage), skipped containers entirely, dropped authentication, and focused purely on the control plane mechanics. Through this process, he demonstrates how the reconciliation loop, API server concurrency handling, and scheduling logic actually work at their most basic level.
You will learn:
- How the reconciliation loop works - The core concept of desired state vs current state that drives all Kubernetes operations
- Why the API server is the gateway to etcd - How Kubernetes prevents race conditions using optimistic concurrency control and why centralized validation matters
- What the scheduler actually does - Beyond simple round-robin assignment, understanding node affinity, resource requirements, and the complex scoring algorithms that determine pod placement
- The complete pod lifecycle - Step-by-step walkthrough from kubectl command to running pod, showing how independent components work together like an orchestra
Kubernetes jobs
Platform Engineer with Jobgether
Salary: $95K to $135K a year
Location: remote from the United States of America
Tech stack: Kubernetes, Azure, Shell, Python, C#, Powershell, Terraform, Azure DevOps, GitHub Actions, Ansible
DevSecOps Engineer with Coder
Salary: £96K to £120K a year
Location: remote from the United Kingdom, Poland
Tech stack: Kubernetes, AWS, GCP, Docker, Go, Python, GitHub Actions, Gitlab
DevOps Engineer with Arine
Salary: $150K to $175K a year
Location: remote from the United States of America
Tech stack: Kubernetes, AWS, Docker, Shell, Python, Javascript, DynamoDB, Terraform, Cloudformation, CDK
Software Engineer with Serve Robotics
Salary: $155K to $190K a year
Location: remote from the United States of America, Canada
Tech stack: Kubernetes, GCP, Python, SQL, C++
DevOps Engineer with Effectual
Salary: $110K to $120K a year
Location: remote from the United States of America
Tech stack: Kubernetes, AWS, On-premise, Docker, Shell, Python, SQL, Powershell, SQL Server, Cassandra
Discover more Kubernetes jobs on Kube Careers →
Code & tools
github.com/truefoundry
KubeElasti lets your Kubernetes services scale to zero when there’s no traffic by sitting behind a proxy that queues incoming requests, and then spins up pods when traffic arrives again.
Kubernetes Deployment for Home Automation
github.com/pajikos
This Helm chart bootstraps a Home Assistant instance on Kubernetes, supports configurable persistence, controller types, add-ons (e.g. code-server), and is auto-updated with new Home Assistant releases.
github.com/austincunningham
k8s-doctor is a kubectl cluster triage plugin that helps you diagnose cluster issues — like
brew doctorbut for Kubernetes.OpenTelemetry Operator for Kubernetes
github.com/open-telemetry
This tool runs a Kubernetes operator that manages OpenTelemetry Collectors and auto-instrumentation for your workloads.
github.com/k8sgpt-ai
K8sgpt is a tool that scans Kubernetes clusters, diagnoses, and triages issues in simple English.
Other interesting projects:
Upcoming Kubernetes events
Nov
18
Online workshop organized by LearnKube.
This is a virtual event
This event requires an entrance fee
Nov
15
KCD Hangzhou + OpenInfra China Day 2025
In-person conference organized by KCD Hangzhou.
Location: Hangzhou, CN
This is a free event.
Nov
12
In-person social event organized by Testkube & Google.
Location: Atlanta, GA, USA
This is a free event.
Nov
14
The Commit Your Code Conference 2025
In-person conference organized by CYC/DSD.
Location: Dallas, TX, USA
This event requires an entrance fee
Nov
13
Online & in-person conference organized by Nerdearla.
Location: Madrid, ES and virtual
This is a free event.
Kubernetes call for papers
17
days
The Call For Paper is open until 1 December 2025 at UTC. More info →
Location: Los Angeles, CA, USA
In-person conference organized by Devopsdays.
The conference starts on the 6 March 2026.
- Apply here
81
days
The Call For Paper is open until 2 February 2026 at UTC. More info →
Location: Aix-en-Provence, FR
In-person conference organized by Web Days.
The conference starts on the 6 February 2026.
- Apply here
23
days
The Call For Paper is open until 6 December 2025 at UTC. More info →
Location: Sydney, AU
In-person conference organized by NDC.
The conference starts on the 23 April 2026.
- Apply here
32
days
The Call For Paper is open until 15 December 2025 at UTC. More info →
Location: Bangkok, TH
In-person conference organized by FOSSASIA.
The conference starts on the 10 March 2026.
- Apply here
67
days
The Call For Paper is open until 19 January 2026 at UTC. More info →
Location: Atlanta, GA, USA
In-person conference organized by Devopsdays.
The conference starts on the 21 April 2026.
- Apply here
10
days
The Call For Paper is open until 23 November 2025 at UTC. More info →
Location: Madrid, ES
In-person conference organized by T3CHFEST.
The conference starts on the 13 March 2026.
- Apply here
79
days
The Call For Paper is open until 31 January 2026 at UTC. More info →
Location: Copenhagen, DK
In-person conference organized by Devopsdays.
The conference starts on the 28 April 2026.
- Apply here
38
days
The Call For Paper is open until 21 December 2025 at UTC. More info →
Location: Bucharest, RO
In-person conference organized by Incremental Development.
The conference starts on the 29 April 2026.
- Apply here
17
days
The Call For Paper is open until 30 November 2025 at UTC. More info →
Location: Madrid, ES
In-person conference organized by Codemotion.
The conference starts on the 21 May 2026.
- Apply here
Until next time!
— Gulcan