Scaling infrastructure with DevOps

One of the key features in modern DevOps is the use of cloud technology. In this section, we will discuss why enterprises gain a lot of benefit by moving infrastructure in cloud platforms such as AWS and Azure. First, we will study the principles of scaling, since this is one of the major benefits of using cloud infrastructure. At the end of the section, we will also touch upon next-level scaling with containers, given the fact that in the coming years, there will be a big shift from VMs to containers.

In DevOps projects, developers use pipelines, as we have seen in the previous chapter. Code is pulled from a repository, changed, tested, and pushed to the next stage. Code follows a promotion path: from development to test, acceptance, and—eventually—production systems. Development and test systems might not always be needed; they simply have to be there whenever they are required in the process. If the work is done, then these systems...