January 2018
Intermediate to advanced
318 pages
7h 6m
English
Content preview from Kubernetes for Serverless Applications
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Hello world
We can now deploy a more complex solution rather than just using the inbuilt echo utility to return a message. In a similar way to the previous hello world scripts we used, we are going to deploy a function, written in Node.js, that takes an input and displays it back to us.
First of all, let's create a working directory:
$ mkdir openwhisk-http$ cd openwhisk-http
Now we have a working directory, create a file that contains the following code and call it hello.js:
function main(args) { var msg = "you didn't tell me who you are." if (args.name) { msg = `hello ${args.name}!` } return {body: `<html><body><h3><center>${msg}</center></h3></body></html>`}}
Now that we have the function that we are going to deploy, we first of all need ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.