<p>I am new to cluster container management, and this question is the basis for all the freshers over here.</p>

<p>I read some documentation, but still, my understanding is not too clear, so any leads.. helping to understand?</p>

<ol>
<li>Somewhere it is mentioned, Minikube is used to run Kubernetes locally. So if we want to maintain cluster management in my four-node Raspberry Pi, then Minikube is not the option?</li>
<li>Does Minikube support only a one-node system?</li>
<li>Docker Compose is set of instructions and a YAML file to configure and start multiple Docker containers. Can we use this to start containers of the different hosts? Then for simple orchestration where I need to call container of the second host, I don't need any cluster management, right?</li>
<li>What is the link between Docker Swarm and Kubernetes? Both are independent cluster management. Is it efficient to use Kubernetes on Raspberry Pi? Any issue, because I was told that Kubernetes in single node takes the complete memory and CPU usage? Is it true?</li>
<li>Is there other cluster management for Raspberry Pi?</li>
</ol>

<p>I think this 4-5 set will help me better.</p>

<p>Presuming that your goal here is to run a set of containers over a number of different Raspberry Pi based nodes:</p>

<ul>
<li><p>Minikube isn't really appropriate. This starts a single virtual machine on a Windows, MacOS or Linux and installs a Kubernetes cluster into it. It's generally used by developers to quickly start-up a cluster on their laptops or desktops for development and testing purposes.</p></li>
<li><p>Docker Compose is a system for managing sets of related containers. So for example if you had a web server and database that you wanted to manage together you could put them in a single Docker Compose file.</p></li>
<li><p>Docker Swarm is a system for managing sets of containers across multiple hosts. It's essentially an alternative to Kubernetes. It has fewer features than Kubernetes, but it is much simpler to set up.</p></li>
</ul>

<p>If you want a really simple multi-node Container cluster, I'd say that Docker swarm is a reasonable choice. If you explicitly want to experiment with Kubernetes, I'd say that kubeadm is a good option here. Kubernetes in general has higher resource requirements than Docker Swarm, so it could be somewhat less suited to it, although I know people have successfully run Kubernetes clusters on Raspberry Pis.</p>
