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The DevOps 2.5 Toolkit

You're reading from   The DevOps 2.5 Toolkit Monitoring, Logging, and Auto-Scaling Kubernetes: Making Resilient, Self-Adaptive, And Autonomous Kubernetes Clusters

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Product type Paperback
Published in Nov 2019
Publisher Packt
ISBN-13 9781838647513
Length 322 pages
Edition 1st Edition
Concepts
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Author (1):
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Viktor Farcic Viktor Farcic
Author Profile Icon Viktor Farcic
Viktor Farcic
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Table of Contents (9) Chapters Close

1. Autoscaling Deployments and StatefulSets Based on Resource Usage FREE CHAPTER 2. Auto-scaling Nodes of a Kubernetes Cluster 3. Collecting and Querying Metrics and Sending Alerts 4. Debugging Issues Discovered Through Metrics and Alerts 5. Extending HorizontalPodAutoscaler with Custom Metrics 6. Visualizing Metrics and Alerts 7. Collecting and Querying Logs 8. What Did We Do? 9. Other Books You May Enjoy

Creating a cluster

The vfarcic/k8s-specs (https://github.com/vfarcic/k8s-specs) repository will continue to serve as our source of Kubernetes definitions. We'll make sure that it is up-to-date by pulling the latest version.

All the commands from this chapter are available in the 05-hpa-custom-metrics.sh (https://gist.github.com/vfarcic/cc546f81e060e4f5fc5661e4fa003af7) Gist.
 1  cd k8s-specs
 2
 3  git pull

The requirements are the same as those we had in the previous chapter. The only exception is EKS. We'll continue using the same Gists as before for all other Kuberentes flavors.

A note to EKS users
Even though three t2.small nodes we used so far have more than enough memory and CPU, they might not be able to host all the Pods we'll create. EKS (by default) uses AWS networking. A t2.small instance can have a maximum of three network interfaces, with four IPv4 address...
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