[ramonguiu]

Hey rudasn, I'm Ramon, the author of the blog post.

You can definitely use the tools mentioned in the blog post on bare metal as well. All components in the demo environments described in the blog post run on Docker on a host, no Kubernetes or cloud services. It would also be possible to run them directly on the host with no Docker.

Usually the challenge is that many of those tools have have been designed with microservices and cloud native environments in mind. So typically they are easier to set up in those environments and most of the documentation you'll find online is about those types of setups.