Spotlight

Hardware-backed TLS certificates with cert-manager and yubihsm 2

Charles Sullivan

This tutorial teaches how to build a cert-manager external issuer that uses a YubiHSM 2 to sign TLS certificates via Go's crypto.Signer interface.

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Tools and utilities

  • GreenKube: carbon and cost visibility for Kubernetes

    GreenKube is an open source platform that measures Kubernetes workload energy use, estimates CO2e emissions, and gives optimization recommendations so teams can reduce cloud cost and carbon impact.

  • Pluto

    Pluto scans Kubernetes manifests, Helm charts, and live Helm releases to find deprecated or removed API versions before upgrades break workloads.

  • Cloudflare Kubernetes Gateway

    Cloudflare Kubernetes Gateway is a controller that manages Kubernetes ingress traffic via the Gateway APIto Cloudflare Tunnels.

  • K8up

    K8up is a Kubernetes Operator that helps you:

  • X.509 Certificate Exporter

    X.509 Certificate Exporter is a Go-based Prometheus exporter that monitors certificate expiration inside Kubernetes clusters or as a standalone service, helping teams alert before TLS certificates expire.

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Events starting soon

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What Hip-Hop Can Teach Us About Kubernetes
What Hip-Hop Can Teach Us About Kubernetes

Kelsey Hightower, Eric Abercrombie, and Julius Payne II reflect on life after achievement, entering the Kubernetes world for the first time, and how music, creativity, and lived experience shape the way they think about technology.

In this interview:

  • Why fundamentals, patience, and repetition still matter more than shortcuts
  • How Kubernetes, community, and confidence intersect for people entering cloud-native work
  • What hip-hop, production, and storytelling can teach us about ownership, authenticity, and finding your voice

Learn from production

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Matching jobs

    • Software Engineer with Nebius

    • Salary: $126K to $261.8K a year

    • Location: remote from

    • Tech stack: Kubernetes, AWS

    • Customer Success Manager with Crusoe

    • Salary: $150K to $170K a year

    • Location: based in the office in Denver, CO, USA

    • Tech stack: Kubernetes

    • Data Engineer with Cohere

    • Salary: $54K to $297.88K a year

    • Location: based in the office in New York, NY, USA

    • Tech stack: Kubernetes, Java, Python, SQL, Airflow

    • Data Engineer with Docker

    • Salary: $54K to $407K a year

    • Location: remote from

    • Tech stack: Kubernetes, AWS, Azure, GCP, Docker, Python, SQL

Discover more Kubernetes jobs on Kube Careers →

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    Tech Fuse Des Moines 2026

    The Call For Paper is open until 30 April 2026 at GMT-4. More info →
    • Location: Des Moines, IA, USA

    • In-person conference organized by Tech Fuse DSM.

    • The conference starts on the 16 October 2026.

    • Apply here
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    Devopsdays Graz

    The Call For Paper is open until 30 April 2026 at GMT-4. More info →
    • Location: Graz, AT

    • In-person conference organized by Devopsdays.

    • The conference starts on the 4 September 2026.

    • Apply here
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    days

    bit summit 2026

    The Call For Paper is open until 30 April 2026 at GMT-4. More info →
    • Location: Hamburg, DE

    • In-person conference organized by bit summit.

    • The conference starts on the 23 September 2026.

    • Apply here
  4. 9

    days

    IT-Tage

    The Call For Paper is open until 30 April 2026 at GMT-4. More info →
    • Location: Frankfurt, DE

    • In-person conference organized by Alkmene Verlag.

    • The conference starts on the 10 December 2026.

    • Apply here
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    SREday NYC 2026

    The Call For Paper is open until 1 May 2026 at GMT-4. More info →
    • Location: New York, NY, USA

    • In-person conference organized by SREday.

    • The conference starts on the 2 June 2026.

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    SpiceWorld 2026

    The Call For Paper is open until 1 May 2026 at GMT-4. More info →
    • Location: Austin, TX, USA

    • In-person conference organized by SpiceWorks.

    • The conference starts on the 13 November 2026.

    • Apply here
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    KubeCon China 2026

    The Call For Paper is open until 3 May 2026 at GMT-4. More info →
    • Location: Shanghai, CN

    • In-person conference organized by CNCF.

    • The conference starts on the 9 September 2026.

    • Apply here

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