Learn Kubernetes Weekly issue 137
Warmup Pods with Istio, LLM Load Balancing at Scale, Balancing Capacity and Cost, When VPA Goes Rogue, Cost-Aware Scheduler
25 Jun 2025
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Articles
Frédéric Gaudet
In this article, you'll learn how the BlaBlaCar team leveraged the new Istio load balancing warmup feature to decrease pods' latency during rollout phases.
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
LLM Load Balancing at Scale: Consistent Hashing with Bounded Loads
Nick Stogner
KubeAI replaces kube-proxy's random routing with CHWBL (Consistent Hashing with Bounded Loads), aligning LLM requests with prefix-aware cache locality to reduce TTFT by 95% and double throughput in multi-replica vLLM setups.
Balancing Capacity and Cost for Kubernetes Clusters
Denilson Nastacio
Learn how balancing cluster cost and capacity requires addressing hidden constraints (e.g. limits, compute/storage, etc.) and properly configuring workload resources to avoid waste and instability, instead of reactive fixes like node reboots.
When VerticalPodAutoscaler Goes Rogue: How an Autoscaler Took Down Our Cluster
Thibault JAMET
Learn how a misconfigured Vertical Pod Autoscaler caused cluster instability by evicting critical pods.
The lesson learned: proper configuration and monitoring of resource requests/limits are essential to prevent such autoscaling failures.
Building a Cost-Aware Kubernetes Scheduler
David Masselink
This article details a custom Kubernetes scheduler plugin that delays or reroutes pods based on real-time carbon intensity, energy pricing, and hardware power efficiency.
Articles worth checking out:
Kubernetes Best Practices in 2025
A strong cloud native foundation starts with Kubernetes done right.
Avoid pitfalls, implement smart policies, and unlock the full value of Kubernetes with these best practices.
Tutorials
Container Network Interface (CNI) in Kubernetes: An Introduction
Homayoon Alimohammadi
This tutorial explains the full lifecycle of Kubernetes pod networking using CNI, from initial pod sandbox creation to static routing between nodes.
Is Your Kubernetes Infrastructure Resilient? Test It with a Chaos Day
We've all felt it—that gut-drop when an app crashes and no one knows why.
In today's always-on world, downtime hurts. Want resilient Kubernetes?
Try a Chaos Day.
sponsored
Understanding Kubernetes Probes: A Conversation on Ensuring Service Reliability
Naresh Waswani
This article dissects how to use Kubernetes liveness, readiness, and startup probes correctly, with real-world APIs, failure patterns, and probe configs for services with Redis, PostgreSQL, Kafka, and external dependencies.
Scaling gRPC with Kubernetes (using Go)
This article shows how to overcome gRPC's sticky connection issue on Kubernetes using headless services, round-robin client-side load balancing, and dynamic DNS discovery in Go.
Improve Performance of Memory-Intensive Applications on EKS Cluster Using Huge Pages
Shubham Jain
This guide shows how to boost memory-bound workload performance in EKS by configuring huge pages on Karpenter-provisioned nodes.
It reduces TLB misses and memory fragmentation by pre-allocating large memory blocks.
Kubernetes jobs
Software Engineer with Jobgether
Salary: $120K to $155K a year
Location: remote from the United States
Tech stack: Kubernetes, AWS, Docker, SQL, Javascript, Typescript, DynamoDB, PostgreSQL, MySQL
Test Automation Engineer with HavocAI
Salary: $100K to $130K a year
Location: remote from the United States
Tech stack: Kubernetes, AWS, GCP, Docker, Go, Shell, Python, Javascript, Jenkins, GitHub Actions
Software Engineer with NVIDIA
Salary: $148K to $287.5K a year
Location: based in the office in Santa Clara, CA, USA
Tech stack: Kubernetes, Azure, On-premise, Helm, Go, Python, Javascript, Grafana, Prometheus
DevOps Engineer with Agiloft
Salary: $170K to $190K a year
Location: remote from the United States
Tech stack: Kubernetes, AWS, Azure, GCP, Docker, Shell, Python, Ruby, Terraform, Jenkins
Infrastructure Architect with Abnormal AI
Salary: €131.8K to €155K a year
Location: remote from the United States
Tech stack: Kubernetes, Azure, Docker, Python, Javascript, Powershell, ARM templates, Terraform, Splunk
Discover more Kubernetes jobs on Kube Careers →
Code & tools
RBAC Manager is an operator that supports declarative configuration for RBAC with new custom resources.
Instead of managing role bindings or service accounts directly, you can specify the desired state and RBAC Manager will make the necessary changes.
Kubeletctl is a command line tool that implements kubelet's API and can:
- Run any kubelet API call.
- Scan for nodes exposing the kubelet API.
- Run a command on all the available containers by kubelet simultaneously.
And more.
klaudworks
The Kubeconfig Operator generates restricted kubeconfig files with granular permissions for Kubernetes clusters.
Define specific RBAC rules at cluster and namespace levels, set expiration times, and automatically manage service accounts.
MetalLB is a tool that provides a load-balancer implementation for bare metal Kubernetes clusters using standard routing protocols.
This repository contains a modern set of Grafana dashboards for Kubernetes.
Other interesting projects:
Upcoming Kubernetes events
Jun
26
Online workshop organized by Learnk8s.
This is a virtual event
This event requires an entrance fee
Jul
3
Kubernetes Community Days Utrecht 2025
Online conference organized by KCD Utrecht.
This is a virtual event
This event requires an entrance fee
Jun
26
In-person conference organized by Platform Engineering.
Location: New York, NY, USA
This event requires an entrance fee
Jun
30
In-person conference organized by Code Europe.
Location: Krakow, PL
This event requires an entrance fee
Use 25% off to get KUBE25
Jun
25
In-person social event organized by Cloud Native Santa Catarina.
Location: Florianópolis, BR
This is a free event.
Discover more Kubernetes events on Kube Events →
Kubernetes Call for Papers
1
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
36
days
Kubernetes Community Days Sri Lanka 2025
The Call For Paper is open until 4 August 2025 at UTC. More info →
Location: Colombo, LK
In-person conference organized by KCD Sri Lanka.
The conference starts on the 26 October 2025.
- Apply here
7
days
Kubernetes Community Days El Salvador
The Call For Paper is open until 7 July 2025 at UTC. More info →
Location: San Salvador, SV
In-person conference organized by KCD El Salvador.
The conference starts on the 20 September 2025.
- Apply here
35
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
36
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
expired
The Call For Paper was open until 28 June 2025 at UTC. More info →
Location: Lima, PE
In-person conference organized by Devopsdays.
The conference starts on the 20 August 2025.
- Apply here
48
days
The Call For Paper is open until 16 August 2025 at UTC. More info →
Location: Detroit, MI, USA
In-person conference organized by Devopsdays.
The conference starts on the 22 October 2025.
- Apply here
32
days
The Call For Paper is open until 31 July 2025 at UTC. More info →
Location: San José, CR
In-person conference organized by DC11506.
The conference starts on the 19 October 2025.
- Apply here
78
days
The Call For Paper is open until 16 September 2025 at UTC. More info →
Location: Bogotá, CO
In-person conference organized by Devopsdays.
The conference starts on the 14 October 2025.
- Apply here
Until next time!
— Dan
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