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Kubernetes - A Complete DevOps Cookbook

You're reading from  Kubernetes - A Complete DevOps Cookbook

Product type Book
Published in Mar 2020
Publisher Packt
ISBN-13 9781838828042
Pages 584 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Murat Karslioglu Murat Karslioglu
Profile icon Murat Karslioglu
LinkedIn
Murat Karslioglu is a distinguished technologist with years of experience using infrastructure tools and technologies. Murat is currently the VP of products at MayaData, a start-up that builds data agility platform for stateful applications, and a maintainer of open source projects, namely OpenEBS and Litmus. In his free time, Murat is busy writing practical articles about DevOps best practices, CI/CD, Kubernetes, and running stateful applications on popular Kubernetes platforms on his blog, Containerized Me. Murat also runs a cloud-native news curator site, The Containerized Today, where he regularly publishes updates on the Kubernetes ecosystem.
See other products by Murat Karslioglu

Table of Contents (12) Chapters

Preface 1. Building Production-Ready Kubernetes Clusters 2. Operating Applications on Kubernetes 3. Building CI/CD Pipelines 4. Automating Tests in DevOps 5. Preparing for Stateful Workloads 6. Disaster Recovery and Backup 7. Scaling and Upgrading Applications 8. Observability and Monitoring on Kubernetes 9. Securing Applications and Clusters 10. Logging with Kubernetes 11. Other Books You May Enjoy

Inspecting containers

In this section, we will troubleshoot problems related to pods stuck in Pending, ImagePullBackOff, or CrashLoopBackOff states. You will learn how to inspect and debug pods that are having deployment problems in Kubernetes.

Getting ready

Make sure you have a Kubernetes cluster ready and kubectl configured to manage the cluster resources.

How to do it…

This section is further divided into the following subsections to make the process easier:

  • Inspecting pods in Pending status
  • Inspecting pods in ImagePullBackOff status
  • Inspecting pods in CrashLoopBackOff status

Inspecting pods in Pending status

When you deploy applications on Kubernetes, it is inevitable that soon or later you will need to get more information on your application. In this recipe, we will learn to inspect common pods problem of pods stuck in Pending status:

  1. In the /src/chapter8 folder, inspect the content of the mongo-sc.yaml file and deploy it running the following command. The deployment...
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Authors (1)

Profile icon Murat Karslioglu
LinkedIn
Murat Karslioglu is a distinguished technologist with years of experience using infrastructure tools and technologies. Murat is currently the VP of products at MayaData, a start-up that builds data agility platform for stateful applications, and a maintainer of open source projects, namely OpenEBS and Litmus. In his free time, Murat is busy writing practical articles about DevOps best practices, CI/CD, Kubernetes, and running stateful applications on popular Kubernetes platforms on his blog, Containerized Me. Murat also runs a cloud-native news curator site, The Containerized Today, where he regularly publishes updates on the Kubernetes ecosystem.
Read more
See other products by Murat Karslioglu

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