I want to start practicing with k8s for the CKAD exam. I run on ubuntu 18.04. I noticed everywhere that I need to download Virtualbox for minikube. I believe that VB is needed in case I don't start my cluster with a driver but if I use the Docker driver when I start my cluster shouldn't that be enough? Is microk8s a better option?
It seems that the preferred way is use --driver=docker driver instead of --driver=none for minikube, although it is technically not baremetal as it is significantly easier to configure and does not require root access. The ‘none’ driver is recommended for advanced users only. (info below from https://minikube.sigs.k8s.io/docs/drivers/docker/)
docker Overview
The Docker driver allows you to install Kubernetes into an existing Docker install. On Linux, this does not require virtualization to be enabled. Requirements
Usage
Start a cluster using the docker driver:
minikube start --driver=dockerTo make docker the default driver:
minikube config set driver dockerYes you can. Check here.
Minikube also supports a
--driver=noneoption that runs the Kubernetes components on the host and not in a VM. Using this driver requires Docker and a Linux environment but not a hypervisor.
Jus run
$ minikube startCaution: If you use the none driver, some Kubernetes components run as privileged containers that have side effects outside of the Minikube environment. Those side effects mean that the none driver is not recommended for personal workstations