July 2019
Intermediate to advanced
391 pages
8h 40m
English
Content preview from Learning Apache OpenWhisk
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Chapter 1. Serverless and OpenWhisk Architecture
Welcome to the world of Apache OpenWhisk, an open source serverless platform designed to make it simple to develop applications in the cloud. The project was developed in the open by the Apache Software Foundation, so the correct name is “Apache OpenWhisk,” but for simplicity we’ll use “OpenWhisk” throughout.
Note that “serverless” does not mean “without a server”—it means “without managing the server.” Indeed, we will learn how to build complex applications without being concerned with installing and configuring the servers to run the code; we only have to deal with the servers when we first deploy the platform.
A serverless environment is most suitable for applications needing processing “in the cloud” because it allows you to split your application into multiple simpler services. This approach is often referred to as a “microservices” architecture.
To begin with, we will take a look at the architecture of OpenWhisk to understand its strengths and weaknesses. After that we’ll discuss the architecture itself, focusing on the serverless model to show you what it can and cannot do.
We’ll wrap up this chapter by comparing OpenWhisk with another widely used similar architecture, Java EE. The problems previously solved by Java EE application servers can now be solved by serverless environments, only at a greater scale (even hundreds of servers) and with more flexibility (not just with Java, but with many other programming languages). ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.