Understanding Kubernetes’ origins and design principles

While the evolution from one platform to another might be obvious, the compelling event and inner mechanics might not be. To safely handle sensitive data within Kubernetes, we have to understand both its historical and architectural evolutions. This will help us implement a secure production-grade environment for our critical business applications.

The next few sections will describe a series of concepts, explore and practice them with a simple container runtime and Kubernetes cluster, and establish their direct relationships with security concerns that this handbook will address.

Important note

While we expect you to perform the hands-on examples while reading along, we understand that you might not have the opportunity to do so. As such, we have provided briefings and debriefings for each hands-on example.

From bare metal to containers

Four decades ago, deploying applications was done on a physical server...