Introducing the DaemonSet object
The term daemon in operating systems has a long history and, in short, is used to describe a program that runs as a background process, without interactive control from the user. In many cases, daemons are responsible for handling maintenance tasks, serving network requests, or monitoring hardware activities. These are often processes that you want to run reliably, all the time, in the background, from the time you boot the operating system to when you shut it down.
Daemons are associated in most cases with Unix-like operating systems. In Windows, you will more commonly encounter the term Windows service.
Imagine needing a program to run on every computer in your office, making sure everything stays in order. In Kubernetes, that’s where DaemonSets come in. They’re like special managers for Pods, ensuring a single copy of a Pod runs on each machine (called a Node) in your cluster. Also, in use cases like gRPC, this...