Serverless

In this lesson, we'll study serverless.

Introduction #

PaaS deploy applications. Serverless goes even further and enables the deployment of individual functions.

Thereby, Serverless allows even smaller deployments than with PaaS. A REST service can be divided into a variety of functions, one per HTTP method and resource.

The advantages of Serverless are similar to those of PaaS:

  • A high degree of abstraction and thus relatively simple deployment.
  • Serverless functions are only activated when a request is made so that no costs are incurred if no requests are processed.
  • They can also scale very flexibly.

Serverless technologies include:

As with a PaaS, Serverless includes support for operation. Metrics and log management are provided by the cloud provider.

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