Cloud computing has become a widely used computing model to support cost‐effective and efficient data processing using commodity servers. Cloud computing makes effective use of distributed environments for tackling large‐scale computation problems on vast data set. There are multiple challenges with cloud computing, such as virtualization, isolation, performance, scalability, privacy, and security. In this section, we first provide an overview of the architecture of cloud computing. Then, we will go deeper into various virtualization technologies and focus on the network virtualization.
2.1.1 Architecture
Public cloud providers use an on‐demand, pay‐as‐you‐go model of compute and storage infrastructure as well as platform services. Amazon Web Services (AWS) led the early cloud computing revolution, beginning with their S3 service in 2006. Their services have been adopted by companies large and small, from backups and archival storage in S3, to compute in EC2, Virtual Private Clouds, IAM authorization and authentication, and RDS managed databases, to name a few. For customers, these services are easy to add, easy to consume, and can lead to a sprawling, poorly documented infrastructure.
Cloud computing can be viewed as a layering architecture, as shown in Figure 2.1.
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.
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.
Head of Cybersecurity
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.
Field Engineer
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.
Data Platform Tech Lead
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.
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.
