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Serverless Architectures with Kubernetes

You're reading from   Serverless Architectures with Kubernetes Create production-ready Kubernetes clusters and run serverless applications on them

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Product type Paperback
Published in Nov 2019
Publisher
ISBN-13 9781838983277
Length 474 pages
Edition 1st Edition
Concepts
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Authors (2):
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Onur Yılmaz Onur Yılmaz
Author Profile Icon Onur Yılmaz
Onur Yılmaz
Sathsara Sarathchandra Sathsara Sarathchandra
Author Profile Icon Sathsara Sarathchandra
Sathsara Sarathchandra
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Toc

Table of Contents (11) Chapters Close

Preface 1. Introduction to Serverless FREE CHAPTER 2. Introduction to Serverless in the Cloud 3. Introduction to Serverless Frameworks 4. Kubernetes Deep Dive 5. Production-Ready Kubernetes Clusters 6. Upcoming Serverless Features in Kubernetes 7. Kubernetes Serverless with Kubeless 8. Introduction to Apache OpenWhisk 9. Going Serverless with OpenFaaS Appendix

Debugging a Kubeless Function

A Kubeless function can fail at different stages of the function life cycle (for example, from deployment time to function execution time) due to a number of reasons. In this section, we are going to debug a function to identify the cause of failure.

In order to demonstrate multiple error scenarios, first, we are going to create a sample function with the following code block in the debug.py file:

def main(event, context)
    name = event['data']['name']
    return "Hello " +  name

Error Scenario 01

Now, let's try to deploy this function using the kubeless function deploy command:

$ kubeless function deploy debug --runtime python \
                           --from-file debug.py \
       ...
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