Kubernetes is an open source container system that has been initially released in 2014. So, it's quite young.
Similar container systems that most of you might be familiar with are docker or if we're dealing with a FreeBSD system - jails.
Each of them has its pros and cons, but from what I've heard and from what I've seen, counterintuitively, jails are very convenient to work with and configure.
However, this presentation is not about FreeBSD jails, but Kubernetes. And in this hour long video, that has just been posted recently (May 2018), Dale Alleshouse takes a ground up approach for understanding Kubernetes.
As per the description:
"In less than an hour, we'll build an environment capable of: Automatic Binpacking, Instant Scalability, Self-healing, Rolling Deployments, and Service Discovery/Load Balancing." [source]
If you're a system adminstrator or devop, you might benefit a lot from the presentation in case you're looking for alternatives to Docker. Enjoy!

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Cristi Vlad Self-Experimenter and Author