Learn Kubernetes Weekly issue 128
Why Pull Base Images?, Istio Ambient vs Cilium, Linting tools, Git happens: Argo CD took over, pgBackRest and ArgoCD have your back (literally)
23 Apr 2025
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Articles
Why Pull Base Images When You Can Build Your Own?
vaibhavlokhande3000
Build your own secure, lightweight container base images with Buildah and Debootstrap instead of relying on pre-built ones.
Gain full control and customisation for optimised deployments through a step-by-step guide.
[PDF] Stable Diffusion reduced AI inference costs by up to 86%
Discover how the Akamai RTX 4000 Ada GPUs outperformed AWS, cutting inference costs for Stable Diffusion by up to 86%.
sponsored
Scaling in the Clouds: Istio Ambient vs Cilium
Mitch Connors
In a 1,000-node Kubernetes test, Istio's ambient mode outperformed Cilium with 56% higher throughput and 20% lower latency.
Istio's centralized control plane ensured stability, while Cilium's per-node setup caused API crashes.
Kubernetes configuration linting tools
Brian Grant
The article reviews Kubernetes configuration linting tools, highlighting kubeconform for schema validation, Kyverno/Checkov for policies, and KubeLinter for best practices.
Git happens: how Argo CD took over our deployments
Laurent Lavaud
Learn how Mirakl, a company specialising in e-commerce solutions, leveraged Argo CD and Helm to streamline their Kubernetes deployments and improve their GitOps practice.
Patroni Backups: When pgBackRest and ArgoCD have your back (literally)
Ziv Yatzik
This article details a scalable PostgreSQL backup solution.
Using pgBackRest, Ansible, and GitOps, it automates backups, archives WALs, and provides monitoring for reliable data protection and recovery.
Articles worth checking out:
Unlock efficient and responsive AI
Reduce AI latency by up to 86% with Akamai Cloud Inference. Seamlessly scale real-time models with NVIDIA GPUs and run inference closer to users.
Tutorials
Deploy a Chatbot and RAG Pipeline for AI Inferencing on Kubernetes
Deploy a RAG pipeline on Akamai's Kubernetes service using GPU instances.
Create a chatbot that answers queries with data from your custom source, enhanced by Retrieval-Augmented Generation.
sponsored
Kubernetes: A Single AWS Load Balancer for Different Kubernetes Ingresses
Arseny Zinchenko
The article explains how to use AWS Load Balancer Controller's IngressGroup to merge Kubernetes Ingress resources across namespaces into a single AWS ALB, reducing costs via shared annotations and host-based routing.
Persistent Volume and Persistent Volume claim hands-on
Ashhad Ali
Learn how to implement Persistent Volumes (PVs) & Claims (PVCs) in Kubernetes.
This tutorial covers data persistence across Pod restarts/deletions, PV/PVC setup, hostPath basics, reclaim policies, and troubleshooting to build resilient apps.
Santosh Shinde
In this tutorial, you'll explore an approach to setting up a Keycloak token exchange in a local Kubernetes environment with Istio ingress.
Tomas Sirio
In this article, you will learn about Tomas' experience building a Kubernetes cluster using a Turing Pi 2 board with Raspberry Pi Compute Modules, including the setup, storage, and application deployment.
More tutorials:
Kubernetes jobs
Platform Engineer with Whatnot
Salary: $185K to $245K a year
Location: based in the office in San Francisco / Los Angeles, CA / New York, NY / Seattle, WA, USA
Tech stack: Kubernetes, AWS, GCP, Docker, Python, Javascript, Java, Terraform
DevOps Engineer with Intrepid Studios
Salary: $98K to $137.2K a year
Location: based in the office in San Diego, CA, US
Tech stack: Kubernetes, AWS, GCP, Rancher, OpenShift, Helm, Docker, Go, Python, SQL
DevSecOps Engineer with Quanata
Salary: $200K to $275K a year
Location: remote from the United States
Tech stack: Kubernetes, Docker, Python, Powershell
Engineering Manager with Pulumi
Salary: $180.5K to $227.85K a year
Location: remote from the United States
Tech stack: Kubernetes, AWS, Azure, GCP, Pulumi
Machine Learning Engineer with Together AI
Salary: $160K to $230K a year
Location: based in the office in San Francisco, CA, USA
Tech stack: Kubernetes, Go, Python
Discover more Kubernetes jobs on Kube Careers →
Code & tools
Chart-testing: linting and testing charts
ct is a tool for testing Helm charts.
It is meant for linting and testing pull requests and automatically detects charts changed against the target branch.
KubeLinter is a static analysis tool that checks Kubernetes YAML files and Helm charts to ensure that applications adhere to best practices.
Sealed Secrets provides declarative Kubernetes Secret Management in a secure way.
Since the Sealed Secrets are encrypted, they can be safely stored in a code repository.
Kubeconform: manifests validator
Kubeconform is a Kubernetes manifests validation tool.
Similar to Kubeval, but with the following improvements:
- High performance.
- Remote or local schema locations
- Up-to-date schemas for all recent versions of Kubernetes.
devtron-labs
Kubedd is a tool that checks for API-version compatibility and provides a migration path for Kubernetes objects.
Other interesting projects:
Upcoming Kubernetes events
Apr
24
Kubernetes Community Days Budapest 2025
In-person conference organized by KCD Budapest.
Location: Budapest, HU
This event requires an entrance fee
Apr
26
Kubernetes Community Days Chennai 2025
In-person conference organized by KCD Chennai.
Location: Chennai, IN
This event requires an entrance fee
Apr
28
Advanced Kubernetes course (Singapore)
In-person workshop organized by Learnk8s.
Location: Singapore, SG
This event requires an entrance fee
Apr
28
Kubernetes Community Days Auckland, New Zealand 2025
In-person conference organized by KCD New Zealand.
Location: Auckland, NZ
This event requires an entrance fee
Use kube.events to get 10% off
Apr
29
Online conference organized by CNCF.
This is a virtual event
This is a free event.
Discover more Kubernetes events on Kube Events →
Kubernetes Call for Papers
31
days
Kubernetes Community Washington DC 2025
The Call For Paper is open until 26 May 2025 at UTC. More info →
Location: Washington, D.C., USA
In-person conference organized by KCD Washington DC.
The conference starts on the 16 September 2025.
- Apply here
36
days
The Call For Paper is open until 31 May 2025 at UTC. More info →
Location: Vienna, AT
In-person conference organized by CNDA Austria.
The conference starts on the 8 October 2025.
- Apply here
9
days
Kubernetes Community Days Colombia 2025
The Call For Paper is open until 5 May 2025 at UTC. More info →
Location: Medellín, CO
In-person conference organized by KCD Colombia.
The conference starts on the 29 August 2025.
- Apply here
16
days
Kubernetes Community Days Lima, Perú 2025
The Call For Paper is open until 12 May 2025 at UTC. More info →
Location: Lima, PE
In-person conference organized by KCD Lima, Perú.
The conference starts on the 19 July 2025.
- Apply here
32
days
KubeCon + CloudNativeCon North America 2025
The Call For Paper is open until 28 May 2025 at UTC. More info →
Location: Atlanta, GE, USA
In-person conference organized by Linux Foundation.
The conference starts on the 10 November 2025.
- Apply here
51
days
The Call For Paper is open until 16 June 2025 at UTC. More info →
Location: Aarhus, DK
In-person conference organized by CND.
The conference starts on the 17 April 2025.
- Apply here
5
days
The Call For Paper is open until 30 April 2025 at UTC. More info →
Location: Vilnius, LT and virtual
Online & in-person conference organized by Data Miner.
The conference starts on the 20 May 2025.
- Apply here
51
days
The Call For Paper is open until 15 June 2025 at UTC. More info →
Location: Tel Aviv, IL
In-person conference organized by Devopsdays.
The conference starts on the 11 December 2025.
- Apply here
5
days
The Call For Paper is open until 30 April 2025 at UTC. More info →
Location: London, UK
In-person conference organized by Civo.
The conference starts on the 30 September 2025.
- Apply here
Until next time!
— Dan
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