In recent years, many of the largest cloud providers have switched their focus towards serverless architecture. What does this mean to you? Basically, serverless architectures allow for significant cost savings in a number of areas, including IT, infrastructure, and scalability. By contrast, server-based architectures typically allocate resources to a number of physical machines – each of which requires an investment in power, resources, and management. These investments result in higher cost levels and less profits for cloud service providers.
Serverless computing is an architecture in which a cloud service provider effectively allocates resources on request, taking care of all the necessary servers on behalf of the customer. Rather than having to provide hardware and software on a traditional basis, such applications can be run on the appropriate server, while the underlying virtualization technologies handle rest periods and other events. With serverless architecture, there is also significantly less dependence on complex business logic, as applications are typically designed to return result results in a matter of seconds.
So how does serverless architecture work? The first step towards its deployment is establishing a development environment consisting of a development server and a web server. The second step is then migrating these two servers, as well as several other web servers, into a single cloud provider. The final step is then provisioning and making use of the new services.
One important advantage serverless architecture offers is the use of open source tools and frameworks. As opposed to standard server deployment processes, which may include custom code, serverless processes allow for the use of any programming language or framework that is applicable. This allows for greater flexibility and portability as well as ease of integration and maintenance. For developers who are forced to work with an existing server infrastructure, or are otherwise unable to develop custom code, serverless architecture provides a practical solution as it reduces costs and simplifies the process of deploying and managing a system.
As compared to traditional processes, serverless architecture takes care to remove most of the requirements for business logic, instead relying on HTTP and Java scripts. This results in both higher flexibility and lower costs since it removes the need for a database, authentication, or even a web server. It also results in significant improvements in the time it takes for applications to be able to accept requests as well as to respond to them in a timely manner. These lower costs also mean that serverless architecture scales much better than traditional data-oriented architectures.
Traditional serverless architecture is made up of three components – a data-centre that hosts a web server, a collection of custom functions that are exposed by that web server, and a middleware that manages and monitors the functionality of these three components. Because of the way the IT infrastructure of a traditional IT setup works, there are usually numerous layers of layers required in order for a business process to run smoothly. This makes it much more difficult for certain functions to be implemented and for the overall computing environment to be fault tolerant. The combined effect of these layers can lead to a much slower response time for a website and a lot more work for the IT team to do.