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Kubernetes for Serverless Applications

You're reading from   Kubernetes for Serverless Applications Implement FaaS by effectively deploying, managing, monitoring, and orchestrating serverless applications using Kubernetes

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Product type Paperback
Published in Jan 2018
Publisher Packt
ISBN-13 9781788620376
Length 318 pages
Edition 1st Edition
Concepts
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Author (1):
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Russ McKendrick Russ McKendrick
Author Profile Icon Russ McKendrick
Russ McKendrick
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Table of Contents (13) Chapters Close

Preface 1. The Serverless Landscape FREE CHAPTER 2. An Introduction to Kubernetes 3. Installing Kubernetes Locally 4. Introducing Kubeless Functioning 5. Using Funktion for Serverless Applications 6. Installing Kubernetes in the Cloud 7. Apache OpenWhisk and Kubernetes 8. Launching Applications Using Fission 9. Looking at OpenFaaS 10. Serverless Considerations 11. Running Serverless Workloads 12. Other Books You May Enjoy

Deploying a simple function

Now that we have our Funktion deployment up-and-running, we can look at deploying a really simple hello world example. In the /Chapter05/hello-world/src folder in the GitHub repository that supports this book, you will find a file called hello.js. This file contains the following code:

module.exports = function(context, callback) {
var name = context.request.query.name || context.request.body || "World";
callback(200, "Hello " + name + "!!");
};

Running the following command in the /Chapter05/hello-world/ folder will create our first function using the preceding code:

$ funktion create fn -f src/hello.js

The output should look like this:

As you can see from the Terminal output, this has created a function called hello. Now, we have function running the following command:

$ funktion get function

This should return some...

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