Learn from production

• Tracing large job failures to serial console bottlenecks from oom events

  Jack Lindamood

  This case study shows how OOM Killer terminated a critical network daemon on Kubernetes nodes, causing a network outage.

  It covers debugging via serial console and implementing memory reservations to prevent system-critical process termination.

• Three Weeks in the Trenches: Hunting a 4GB Native Memory Leak That .NET Couldn’t See

  Kalyan Josyula

  This case study shows how a team traced repeated pod OOM kills in ASP.NET Core to native memory growth from zombie SignalR connections, glibc fragmentation, and kernel socket buffers.

• Autoscaling Hid Our LLM Cost Regression (85% → 4% Cache Hit Rate)

  Nick Roan

  This case study shows how a single RAG chunk size change collapsed vLLM prefix-cache hit rate from 85% to 4%, triggering an 80% GPU replica increase while latency stayed flat.

  It also includes the fix: adding a two-phase cache replay gate in CI.

• How My Client Hit Linux Kernel Network Limits on AWS EKS

  Dat Ton

  This case study explains how cURL 65 errors and DNS resolution failures on AWS EKS were caused by Linux kernel network limits being exceeded, resolved by increasing netdev_budget, netdev_budget_usecs, and netdev_max_backlog parameters.

More case studies →

Matching jobs

1. • Software Engineer with LVT

   • Salary: $9 to $533.5K a year

   • Location: based in the office in American Fork, UT, USA

   • Tech stack: Kubernetes, AWS, Azure, GCP, ArgoCD, Docker, Go, GraphQL, PHP, Rust

2. • Data Engineer with Faraday Future

   • Salary: $85K to $95K a year

   • Location: based in the office in El Segundo, CA, USA

   • Tech stack: Kubernetes, AWS, GCP, Docker, Python, SQL, Redis, PostgreSQL, MySQL, Flink

3. • DevSecOps Engineer with Pedestal Health

   • Salary: $12.6K to $415.14K a year

   • Location: based in the office (and remote from home) in Research Triangle Park, NC, USA

   • Tech stack: Kubernetes, AWS, Docker, Python, SQL, PostgreSQL, Cloudformation, Terraform, Ansible, Chef

4. • Machine Learning Engineer with Faraday Future

   • Salary: $45K to $363K a year

   • Location: based in the office in El Segundo, CA, USA

   • Tech stack: Kubernetes, AWS, GCP, Docker, Java, Python

5. • Machine Learning Engineer with OpenLoop Health

   • Salary: $45K to $405.35K a year

   • Location: based in the office (and remote from home) in Bay Area, CA, USA

   • Tech stack: Kubernetes, GCP, Docker, Go, Python, Typescript

Discover more Kubernetes jobs on Kube Careers →

Build something

• Zero-port setup: cloudflare tunnels on Kubernetes

  Ștefan Muraru

  This tutorial shows how to run Cloudflare Tunnels as a DaemonSet to expose services with zero open inbound ports, using liveness probes, Kubernetes Secrets, and GitOps with ArgoCD.

• Migrating VPC CNI from Self-Managed to EKS Managed Add-on

  Asrın Andırın

  This tutorial shows how to migrate Amazon EKS VPC CNI from a self-managed DaemonSet to an AWS managed add-on by preserving custom env settings, moving permissions to IRSA, and avoiding downtime during adoption.

• From ACM to ALB: A Step-by-Step Guide to Managed TLS/SSL in EKS Auto Mode

  Dickson Victor Omasi

  This tutorial shows how to set up TLS-terminated ingress on EKS Auto Mode using ACM and an ALB, skipping the traditional AWS Load Balancer Controller installation and OIDC setup.

• Build a Production-Ready vLLM Inference Server on Kubernetes with AMD Instinct GPUs

  Ojas Singh

  This tutorial teaches how to run a production-ready vLLM inference server on Kubernetes with AMD Instinct GPUs using containerd, the AMD GPU Operator, persistent storage, and MetalLB.

More tutorials →

Call for Papers closing soon

1. 1

   days

   DevOpsDays Bogotá 2026

   The Call For Paper is open until 5 June 2026 at GMT-4. More info →

   • Location: Bogotá, CO

   • In-person conference organized by DevOpsDays Bogotá.

   • The conference starts on the 29 September 2026.

   • Apply here

2. 1

   days

   AI Engineer World's Fair 2026

   The Call For Paper is open until 5 June 2026 at GMT-4. More info →

   • Location: San Francisco, CA, USA

   • In-person conference organized by Software 3.0.

   • The conference starts on the 2 July 2026.

   • Apply here

3. 3

   days

   CloudBrew 2026

   The Call For Paper is open until 7 June 2026 at GMT-4. More info →

   • Location: Mechelen, BE

   • In-person conference organized by Belgium Microsoft Azure User Group.

   • The conference starts on the 11 December 2026.

   • Apply here

4. 4

   days

   DC State of the Stack 2026

   The Call For Paper is open until 8 June 2026 at GMT-4. More info →

   • Location: Washington, DC, USA

   • In-person conference organized by DC State of the Stack.

   • The conference starts on the 17 September 2026.

   • Apply here

5. 4

   days

   Devopsdays Halifax

   The Call For Paper is open until 8 June 2026 at GMT-4. More info →

   • Location: Halifax, CA

   • In-person conference organized by Devopsdays.

   • The conference starts on the 29 September 2026.

   • Apply here

6. 5

   days

   Kubernetes Community Days UK - Edinburgh 2026

   The Call For Paper is open until 9 June 2026 at GMT-4. More info →

   • Location: London, GB

   • In-person conference organized by KCD UK.

   • The conference starts on the 19 October 2026.

   • Apply here

7. 6

   days

   Experts Live Emirates 2026

   The Call For Paper is open until 10 June 2026 at GMT-4. More info →

   • Location: Dubai, AE

   • In-person conference organized by Experts Live.

   • The conference starts on the 12 November 2026.

   • Apply here

More articles

• How I Built Kernel: An AI-Powered IT Helpdesk That Deflects 80% of Support Tickets

  Inguva Dev

  This article explains how an internal AI helpdesk on GKE uses Slack, LangGraph, Okta, Confluence, and Jira to automate routine IT requests and reportedly deflect about 80% of support tickets.

• I setup Kubermatic SecureGuard before it even existed

  Daniel Ullrich

  This article reviews Kubermatic SecureGuard (KubeSG), a Kubernetes-native open source secrets manager built on OpenBao and the External Secrets Operator that automates secret rotation and delivery without app rewrites or proprietary SDKs.

• How a Supply Chain Attack Made Me Sign Every Container Image I Ship

  Samarth

  This article shows how to sign every container image using Cosign keyless signing in GitHub Actions and enforce signatures at pod admission with Kyverno, using the chalk/debug npm attack as the real-world motivation.

• Why Your KServe InferenceService Won't Become Ready: Four Production Failures and Fixes

  Sodiq Jimoh

  This article explains four KServe readiness failures on k3d, ArgoCD, Knative, and Kourier, with root causes, terminal output, and working patches for production debugging.

Even more articles →