Philipp Krenn

Debug a Kubernetes Operator

What's the fastest way to debug a Kubernetes operator? Learn why inspecting the custom resource is often more direct than sifting through endless pod logs.

Debug a Kubernetes Operator
#1about 6 minutes

How Kubernetes operators manage application state

Operators extend Kubernetes with custom resources and use a reconciliation loop to ensure an application's current state matches its desired configuration.

#2about 10 minutes

Debugging a resource association error in an operator

A misconfigured resource reference in the YAML manifest prevents Kibana from starting, which is diagnosed using `kubectl describe` to find the association error.

#3about 7 minutes

Troubleshooting persistent volume claim storage issues

Pods stuck in a pending state are traced back to an invalid storage class in the persistent volume claim, requiring a recreation of the stateful set to fix.

#4about 8 minutes

Customizing operators and comparing them to Helm charts

The discussion covers the opinionated nature of operators, how to find configuration options, and contrasts their approach with the broader flexibility of Helm charts.

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Matching moments

The Kubernetes operator pattern for database automation
15:33 MIN

The Kubernetes operator pattern for database automation

Databases on Kubernetes: Why you should care

Visualizing cluster health with the Kubernetes Cluster Explorer
05:52 MIN

Visualizing cluster health with the Kubernetes Cluster Explorer

5 steps for running a Kubernetes environment at scale

Common Kubernetes misconfigurations from real outages
08:30 MIN

Common Kubernetes misconfigurations from real outages

What we Learned from Reading 100+ Kubernetes Post-Mortems

Understanding Kubernetes extensibility with CRDs and controllers
04:45 MIN

Understanding Kubernetes extensibility with CRDs and controllers

Databases on Kubernetes

Tools and techniques for Kubernetes development
10:33 MIN

Tools and techniques for Kubernetes development

How I saved 200K/yr in direct costs writing 0 code lines in K8s

Debugging serverless applications in a production environment
35:47 MIN

Debugging serverless applications in a production environment

Serverless-Native Java with Quarkus

Understanding the core concept of Kubernetes control loops
04:05 MIN

Understanding the core concept of Kubernetes control loops

A deep dive into ARC the Kubernetes operator to scale self-hosted runners

Understanding Helm's limitations and its alternatives
34:10 MIN

Understanding Helm's limitations and its alternatives

At The Helm of Kubernetes: Repeatable Infrastructure Creation for Mere Mortals

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From learning to earning

Jobs that call for the skills explored in this talk.

Kubernetes Engineer

Kubernetes Engineer

Dembach Goo Informatik GmbH & Co. KG
Hannover, Germany

Redis
Kafka
DevOps
Ansible
RabbitMQ
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