Kubernetes is one of the most well-known open-source systems for automating and scaling containerized applications. Usually, you declare the state of the desired environment, and the system will work to keep that state stable. To make changes “on the fly,” you must engage with the Kubernetes API.
It's not like it used to be back in the day! Before CI/CD, we were building on-premises, service-oriented products following system style architecture and we were able to map out the build system and end-to-end process in a PowerPoint or Visio document. Although time-consuming and inefficient, it was relatively straightforward and the build pipeline was unlikely to change drastically. But that's no longer the case.
In the beginning, there was Amazon Web Services (AWS). And AWS set a standard for cloud computing. AWS was fast, flexible, convenient to use and geo-redundant. Definitely much better than legacy IT infrastructure or VMware. A lot of enterprises all over the world started migrating their business applications to AWS.