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The DevOps 2.3 Toolkit

You're reading from   The DevOps 2.3 Toolkit Kubernetes: Deploying and managing highly-available and fault-tolerant applications at scale

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781789135503
Length 418 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 (18) Chapters Close

Preface 1. How Did We Get Here? FREE CHAPTER 2. Running Kubernetes Cluster Locally 3. Creating Pods 4. Scaling Pods With ReplicaSets 5. Using Services to Enable Communication between Pods 6. Deploying Releases with Zero-Downtime 7. Using Ingress to Forward Traffic 8. Using Volumes to Access Host's File System 9. Using ConfigMaps to Inject Configuration Files 10. Using Secrets to Hide Confidential Information 11. Dividing a Cluster into Namespaces 12. Securing Kubernetes Clusters 13. Managing Resources 14. Creating a Production-Ready Kubernetes Cluster 15. Persisting State 16. The End 17. Other Books You May Enjoy

Merging everything into the same YAML definition

Consider this section a short intermezzo. We'll merge the definitions we used in this chapter into a single YAML file. You already had a similar example before, so there's no need for lengthy explanations.

cat deploy/go-demo-2.yml  

If you start searching for differences with the previous definitions, you will find a few. The minReadySeconds, progressDeadlineSeconds, revisionHistoryLimit, and strategy fields are removed from the go-demo-2-api Deployment. We used them mostly as a way to demonstrate their usage. But, since Kubernetes has sensible defaults, we omitted them from this definition. You'll also notice that there are two Services even though we created only one in this chapter. We did not need the go-demo-2-api Service in our examples since we didn't need to access the API. But, for the sake of completeness...

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