Learn from production

• Migrating legacy PHP monolith apps on Drupal 8 to Kubernetes

  Alexey Demyanov

  This case study shows how Palark migrated high-traffic Drupal 8 monoliths to Kubernetes to improve resilience, autoscaling, deployment automation, and DDoS handling while reducing infrastructure waste.

• How we found 7 TiB of memory just sitting around

  This blog post tells how the Render team:

  • tracked down Kubernetes memory waste caused by many daemonset namespace watches,
  • fixed config issues,
  • and freed over 7 TiB of memory across clusters by reducing unnecessary listwatch overhead.
• 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.

More case studies →

Matching jobs

1. • DevOps Engineer with Alchemy

   • Salary: $90 to $539K a year

   • Location: based in the office in San Francisco, CA, USA

   • Tech stack: Kubernetes, AWS, GCP, Helm, ArgoCD, Terraform, Grafana, Prometheus, Istio

2. • DevOps Engineer with Alchemy

   • Salary: $36K to $225.5K a year

   • Location: based in the office in Bucharest, RO

   • Tech stack: Kubernetes, AWS, Azure, Bare-metal, GCP, Helm, ArgoCD, Cloudformation, Pulumi, Terraform

3. • DevOps Engineer with Derex Technologies Inc

   • Salary: $90 to $484K a year

   • Location: based in the office in IL, USA

   • Tech stack: Kubernetes, AWS, Python, Cloudformation, Terraform

4. • DevOps Engineer with Enpal

   • Salary: US$135K to US$272.8K a year

   • Location: based in the office (and remote from home) in Berlin, DE

   • Tech stack: Kubernetes, Azure, Docker, Terraform, Azure DevOps, Datadog

5. • DevOps Engineer with HEN Technologies

   • Salary: $47.97K to $3.3L a year

   • Location: based in the office in Bangalore, IN

   • Tech stack: Kubernetes, AWS, Azure, GCP, ArgoCD, Docker, Go, Python, Cloudformation, Terraform

Discover more Kubernetes jobs on Kube Careers →

Build something

• Signed, Sealed, and Admitted

  Matt Brown

  This tutorial teaches how to implement container image signature verification in Kubernetes using Cosign for signing, Kyverno for policy enforcement, and Sigstore Policy Controller for admission control.

• Securing East-West Traffic with GKE Internal Gateway

  Blake Gillman

  This tutorial shows how to secure east-west traffic in GKE using an Internal Regional Gateway with Envoy proxies, certificates, HTTP Routes with path rewriting, and a zero-trust architecture for service-to-service communication.

• Enforcing Signed Container Images in Kubernetes Using Cosign & Kyverno

  Hansaka Biyon

  This tutorial teaches how to enforce signed container images in Kubernetes using Cosign for signing, Harbor for storage, and Kyverno admission controller for verification, including custom CA trust configuration and CI/CD integration patterns.

• From Source to Production with OAuth: The Full Kindling Flow

  Jeff Vincent

  This tutorial shows how to take a multi-service app from local source to a Kubernetes environment with OAuth, TLS, Stripe webhooks, in-cluster CI, and automated deployment using Kindling.

More tutorials →

Call for Papers closing soon

1. 4

   days

   EuroBSDCon

   The Call For Paper is open until 20 June 2026 at GMT-4. More info →

   • Location: Brussels, BE

   • In-person conference organized by EuroBSDCon Foundation.

   • The conference starts on the 13 September 2026.

   • Apply here

2. 5

   days

   Dutch Cloud Native Day

   The Call For Paper is open until 22 June 2026 at GMT-4. More info →

   • Location: Utrecht, NL

   • In-person conference organized by Dutch CND.

   • The conference starts on the 29 October 2026.

   • Apply here

3. 8

   days

   Open Source Summit Europe 2026

   The Call For Paper is open until 25 June 2026 at GMT-4. More info →

   • Location: Prague, CZ

   • In-person conference organized by Linux Foundation.

   • The conference starts on the 9 October 2026.

   • Apply here

4. 10

   days

   Kubernetes Community Days Korea 2026

   The Call For Paper is open until 26 June 2026 at GMT-4. More info →

   • Location: Seoul, KR

   • In-person conference organized by KCD South Korea.

   • The conference starts on the 1 September 2026.

   • Apply here

5. 11

   days

   Kubernetes Community Days Washington DC 2026

   The Call For Paper is open until 27 June 2026 at GMT-4. More info →

   • Location: Washington, DC, USA

   • In-person conference organized by KCD Washington DC.

   • The conference starts on the 15 September 2026.

   • Apply here

6. 12

   days

   Kubernetes Community Days Nigeria 2026

   The Call For Paper is open until 29 June 2026 at GMT-4. More info →

   • Location: Lagos, NG

   • In-person conference organized by KCD Nigeria.

   • The conference starts on the 24 October 2026.

   • Apply here

7. 14

   days

   Nerdearla México 2026

   The Call For Paper is open until 30 June 2026 at GMT-4. More info →

   • Location: Mexico City, MX

   • In-person conference organized by Nerdearla.

   • The conference starts on the 20 November 2026.

   • Apply here

More articles

• Why Your CI/CD Pipeline Failures Still Need a Human — And How We’re Changing That

  Happy Bhati

  This article describes how Red Hat's Konflux team built an AI-powered "finally task" for Tekton pipelines that automatically distills 170,000-line failure logs into a 10-line diagnosis.

• Vibe Coding a Kubernetes Media Server: What I Learned About AI-First Engineering

  Florian Lettner

  This article explains how building a k3s media server with Claude Code exposed both the speed and the limits of AI-first engineering across GitOps, observability, storage tuning, and Kubernetes debugging.

• AWS EKS + Fargate Debugging Story: The Missing DHCP Option Set

  Sergey Goncharov

  This case study walks through a real debugging story on EKS Fargate where missing a DHCP option set caused silent DNS failures and pods stuck in pending — and how to find and fix it.

• Secure APIs by Default: My Real-World Blueprint with Zero Trust, mTLS & Istio Policies

  Siva Bankapalli

  This article shows a Zero Trust blueprint using mutual TLS (mTLS) and Istio security policies to make internal and external APIs secure by default, with step-by-step configs and lessons from real systems.

Even more articles →