Learn Kubernetes Weekly issue 160 · 3 Dec 2025
From Packets to Pods, Upgrading Istio at Scale, Kubernetes Exit Codes and Misconfigurations, Network Security, Jaeger Tracing
This issue is brought to you by vCluster Labs and Learnkube — join the free webinar on GPU Sharing Mechanisms in Kubernetes. Explore the architecture from hardware to runtime and understand why GPU scheduling is different.
👋 Dan here!
Tomorrow (Thursday), I'm presenting a webinar on sharing GPUs in Kubernetes! I will cover MPS, MIG, HAMI, the KAI scheduler, and time slicing.
Spoiler: MIG is overrated, HAMi & the KAI scheduler are probably your best options!
You can join me live here! (I'm always happy to answer questions!)
Articles
Kubernetes Networking from Packets to Pods
lucavall.in
This article explains how network packets move from the Linux kernel into Kubernetes pods.
Seamless Istio Upgrades at Scale
medium.com
This case study describes how Airbnb manages rolling upgrades of Istio by automating version testing, monitoring pilot waves, and handling mesh-expansion with VMs and Kubernetes.
How I find and fix Kubernetes Exit Codes and Misconfigurations for free
prequel.hashnode.dev
This article guides you through using the preq tool to quickly identify exit codes and broken configurations in a Kubernetes cluster.
Kubernetes security fundamentals: networking
securitylabs.datadoghq.com
This article covers network security fundamentals in Kubernetes, explaining how clusters default to a flat pod network, how network policies enforce segmentation, and best practices like “default deny” and restricting host networking.
GPU Sharing Mechanisms in Kubernetes
Learn how OCI runtime hooks and the NVIDIA Container Toolkit connect your containers to the host GPU at runtime, and see how Kubernetes actually shares GPUs between workloads.
Tutorials
A Step-by-Step Guide to Jaeger Tracing on Kubernetes
blog.yunacloud.com
This tutorial teaches you how to deploy Jaeger on Kubernetes, configure tracing, and visualize traces to debug and optimize microservices performance.
Jenkins Meets Kubernetes: My First Integration Experience as a DevOps Intern
medium.com
This article recounts a DevOps intern’s experience integrating Jenkins with a Kubernetes cluster, detailing steps to run pipelines inside Kubernetes, configure agents, and link build jobs to cluster deployments.
Bridging the Gap: GitOps for Network Engineers
blog.nerdylyonsden.io
In this 2-part tutorial, you will learn how to deploy a Kubernetes GitOps platform using ArgoCD with MetalLB for IPs, Traefik for ingress, Rook-Ceph for storage, and Vault for secrets.
Unpacking the cluster networking for Amazon EKS hybrid nodes
repost.aws
This tutorial walks you through how to set up networking for a cloud-to-on-premises hybrid Amazon EKS Hybrid Nodes cluster, covering compatible CNIs, CIDR planning, routing, and load-balancer options for hybrid workloads.
Kubernetes jobs
Platform Engineer with AMERICAN SYSTEMS
Salary: $155.7K to $260K a year
Location: remote from the United States of America
Tech stack: Kubernetes, Rancher, Helm, Shell, Python, Gitlab, Ansible
Systems Performance Engineer with Datadog
Salary: $187K to $240K a year
Location: based in the office (and remote from home) in Boston, MA / New York, NY, USA
Tech stack: Kubernetes, AWS, Go, Javascript, Rust, C, Datadog
Platform Engineer with Peraton
Salary: $112K to $179K a year
Location: based in the office in Washington, D.C, USA
Tech stack: Kubernetes, AWS, Helm, ArgoCD, Shell, Python, Terraform, Grafana, Prometheus
DevSecOps Engineer with Corelight
Salary: $221K to $268K a year
Location: remote from North America
Tech stack: Kubernetes, Go, Splunk
DevOps Engineer with Corelight
Salary: $158K to $198K a year
Location: remote from North America
Tech stack: Kubernetes, AWS, Azure, GCP, Docker, Go, Python, C++, Terraform, Pulumi
Discover more Kubernetes jobs on Kube Careers →
Code & tools
Stargz Snapshotter: lazy image distribution
github.com/containerd
Stargz Snapshotter is a containerd plugin enabling lazy pulling of eStargz-formatted OCI images.
It fetches image data on demand, reducing startup time by avoiding full-image pre-pulls.
github.com/yokecd
Yoke is an IaC tool inspired by Helm that leverages WebAssembly and Go to dynamically deploy Kubernetes packages with executable runtime capabilities.
It supports revision tracking, rollback, and inspection.
hl: High-performance log viewer for JSON and logfmt
github.com/pamburus
This open source CLI tool transforms JSON and logfmt structured logs into clear, human-readable output with fast filtering by level, time range, field values and live streaming support.
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.
YamlQL – Query YAML and Kubernetes files with SQL
github.com/AKSarav
YamlQL lets you instantly query any YAML—including Kubernetes manifests—using full SQL or natural language, transforming structures for aggregation, joins, and enterprise BI integration.
Other interesting projects:
Upcoming Kubernetes events
Dec
4
Kubernetes Community Days Suisse Romande
In-person conference organized by KCD Suisse Romande.
Location: Geneva, CH
This event requires an entrance fee
Dec
4
Online conference organized by CNCF.
This is a virtual event
This is a free event.
Dec
4
GPU Sharing Mechanisms in Kubernetes
Online webinar organized by vCluster Labs + LearnKube.
This is a virtual event
This is a free event.
Dec
11
In-person conference organized by Devopsdays.
Location: Tel Aviv, IL
This event requires an entrance fee
Dec
10
In-person conference organized by Linux Foundation.
Location: Tokyo, JP
This event requires an entrance fee
Kubernetes call for papers
72
days
The Call For Paper is open until 15 February 2026 at UTC. More info →
Location: Ghent, BE
In-person conference organized by CfgMgmtCamp.
The conference starts on the 4 February 2026.
- Apply here
85
days
The Call For Paper is open until 28 February 2026 at UTC. More info →
Location: Hamburg, DE
In-person conference organized by Container Days.
The conference starts on the 4 September 2026.
- Apply here
59
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
1
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
10
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
45
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
58
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
16
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
58
days
The Call For Paper is open until 31 January 2026 at UTC. More info →
Location: Prague, CZ
In-person conference organized by Devopsdays.
The conference starts on the 29 April 2026.
- Apply here
Until next time!
— Gulcan