Alvaro Moises Galeano:
Hello everyone! I have been learning Kubernetes using a physical machine with great resources, the OS is Ubuntu, I am using microk8s which by default uses containerd rather than docker, I tried to switch it to docker but it breaks microk8s, my question is, does it matter if I continue using containerd for this course? I do not think so but I would like to know your feedback
Alistair Mackay:
Hi,
Details of the underlying container runtime are not required knowledge for CKAD. The most you need is how to perform basic operations with docker CLI, e.g. building containers, getting logs, listing running containers etc.
It’s all in the course content.
Alvaro Moises Galeano:
Thank you @Alistair Mackay I actually started my journey with Microservices by using Docker 
Sergio Soares:
Like Alistair said, MicroK8S already will help with the content of CKAD.
Can be more valuable focus on practice K8S than the effort to change from containerd for docker.
unnivkn:
Hi @Alvaro Moises Galeano you can practice your lab with either with containerd or docker runtime. fyi: https://kubernetes.io/blog/2022/01/07/kubernetes-is-moving-on-from-dockershim/