Learn Kubernetes Weekly issue 130
L4-L7 Performance, Optimizing performance, Karpenter effect, Replacing StatefulSets with a custom operator, Kubernetes Authentication
7 May 2025
This newsletter is brought to you by Fairwinds - Expert-led fully managed Kubernetes services, designed for engineering teams who need production-grade infrastructure without the operational burden
Articles
L4-L7 Performance: Comparing LoxiLB, MetalLB, NGINX, and HAProxy
Nikhil Malik
This article benchmarks and compares the performance of Kubernetes load balancers and proxies at Layer 4 and Layer 7, analyzing throughput, latency, and resource efficiency for LoxiLB, MetalLB, NGINX, and HAProxy.
[PDF] In-House Kubernetes vs. Managed Kubernetes-as-a-Service
Spending more time managing Kubernetes than building your product?
You're not alone.
Explore the pros and cons of "build vs. buy" to find the right fit for your team.
sponsored
Optimizing Node.js application performance
Igor Naumov
In this case study, you'll learn how to reduce pod count by 30% without compromising latency and explore the importance of controlled testing and code efficiency.
The Karpenter effect: redefining our Kubernetes operations
Tanat Lokejaroenlarb
Learn how Karpenter transformed Adevinta's Kubernetes operations with simplified upgrades, flexible instance selection, improved workload isolation, automated security updates, and significant cost savings.
Replacing StatefulSets with a custom operator in our Postgres cloud platform
In this case study, you will learn how Timescale replaced Kubernetes StatefulSets with a custom operator called PatroniSets to improve the stability, reliability, and cost efficiency of their Postgres cloud platform.
Kubernetes Authentication: comparing solutions
Marc Boorshtein
This post is a deep dive into comparing different solutions for authenticating into a Kubernetes cluster.
It will give you an idea of what the various solutions provide for a typical cluster deployment using production-capable configurations.
Articles worth checking out:
Kubernetes Best Practices in 2025.
The success of your cloud native environment relies on establishing a strong foundation.
Read these Kubernetes best practices to ensure you have the fundamentals in place. Avoid common pitfalls, implement robust policies, and realize the full value of Kubernetes.
Tutorials
Kubernetes Resource Optimization & Best Practices with Goldilocks
Struggling to set the perfect resource requests and limits?
Goldilocks by Fairwinds helps you find the "just right" CPU and memory settings for every container.
sponsored
Creating a custom GitOps controller with Rust
Gabriel Garrido
This tutorial explains building a GitOps controller in Rust with kube-rs and git2-rs.
It automates Kubernetes updates by syncing app repository SHAs to manifests via annotations, then triggers ArgoCD for deployment using a pull-based approach.
Running multiple Kubernetes clusters locally using Minikube and vClusters: A Guide
Itay beyder
In this tutorial, you will learn how to simulate multiple Kubernetes clusters locally using Minikube and vClusters.
Kwasm review: Run WebAssembly apps in Kubernetes clusters
Flant staff
Kwasm, a Kubernetes operator, simplifies running WebAssembly apps in clusters.
The article guides users through setting up a cluster, installing Kwasm, and deploying a sample Wasm application.
Exposing Kubernetes LoadBalancer service using Calico CNI and FRRouting BGP on macOS
tanujd11
In this tutorial you will learn how to expose a Kubernetes LoadBalancer on macOS with KIND, Calico CNI, and FRRouting BGP.
Kubernetes jobs
System Administrator with UAB
Salary: $89.88K to $146.06K a year
Location: based in the office (and remote from home) in Birmingham, AL, USA
Tech stack: Kubernetes, AWS, Azure, On-premise, Docker
Solution Architect with KMS Technology
Salary: $300K to $350K a year
Location: remote from the United States
Tech stack: Kubernetes, AWS, Azure, GCP, Docker
Software Engineer with US Bank
Salary: $193.42K to $218.4K a year
Location: based in the office in Palo Alto, CA, USA
Tech stack: Kubernetes, AWS, GCP, Docker, Python, Java, C, MySQL, Spark, Airflow
Machine Learning Engineer with NVIDIA
Salary: $248K to $391K a year
Location: based in the office (and remote from home) in Santa Clara, CA, USA
Tech stack: Kubernetes, On-premise, Go, Python, Terraform, Ansible, Grafana, Prometheus, Splunk
Systems Performance Engineer with Perplexity AI
Salary: US$190K to US$240K a year
Location: based in the office (and remote from home) in London, GB
Tech stack: Kubernetes, Python, C++
Discover more Kubernetes jobs on Kube Careers →
Code & tools
Wave: Kubernetes Config Change Tracker with Auto-Rollout
wave-k8s
Wave is a Kubernetes controller that monitors Deployments, StatefulSets, and DaemonSets for mounted ConfigMaps and Secrets.
Upon detecting changes, it computes a SHA256 hash and updates the
PodTemplateannotation, triggering a rolling update.baazhq
Baaz is a tool that provides a centralized control plane for deploying and managing infrastructure as a service (IaaS) across shared, dedicated, and bring-your-own-cloud (BYOC) or private infrastructure environments.
gpillon
The k4all ISO provides a pre-configured Fedora CoreOS environment tailored for Kubernetes home servers and virtual machines. This ISO also includes essential tools and services for k8s, Calico networking, the metrics server, and more.
cloud-provider-kind: Kubernetes LoadBalancer
kubernetes-sigs
Kubernetes Cloud Provider for KIND is a tool that fills the gap in Kubernetes testing by providing an agnostic and cost-effective solution for testing cloud-provider features, specifically Load Balancers, using KIND.
Kubero is a fully self-hosted Internal Developer Platform that brings Heroku's workflows to your Kubernetes cluster.
It enables you to deploy your applications with a few clicks, has a built-in CI/CD pipeline, and supports multiple staging environments.
Other interesting projects:
Upcoming Kubernetes events
May
8
Online workshop organized by Learnk8s.
This is a virtual event
This event requires an entrance fee
May
9
Breaking and Rebuilding Kubernetes: Understanding Resilience in Production-Ready Clusters
Online webinar organized by Learnk8s.
This is a virtual event
This is a free event.
May
8
Online conference organized by KubeCrash.
This is a virtual event
This is a free event.
May
12
Online & in-person conference organized by S&S Media.
Location: London, UK and virtual
This event requires an entrance fee
Use kubevent25-10doclon to get 10% off
May
14
In-person conference organized by Devopsdays.
Location: Singapore, SG
This event requires an entrance fee
Discover more Kubernetes events on Kube Events →
Kubernetes Call for Papers
12
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
17
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
expired
Kubernetes Community Days Lima, Perú 2025
The Call For Paper was 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
13
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
33
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
47
days
Kubernetes Community Days Porto 2025
The Call For Paper is open until 30 June 2025 at UTC. More info →
Location: Porto, PT
In-person conference organized by KCD Porto.
The conference starts on the 4 November 2025.
- Apply here
81
days
The Call For Paper is open until 3 August 2025 at UTC. More info →
Location: Austin, TX, USA
In-person conference organized by TXLF.
The conference starts on the 4 October 2025.
- Apply here
32
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
82
days
The Call For Paper is open until 4 August 2025 at UTC. More info →
Location: Tokyo, JP
In-person conference organized by Linux Foundation.
The conference starts on the 10 December 2025.
- Apply here
Until next time!
— Dan
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