lists
ArturKryukov - k3s of 14 parts
    https://www.youtube.com/playlist?list=PLmxqUDFl0XM5ROoVYIsuoBe6oKYkgLzzO
    https://github.com/BigKAA/youtube/tree/master/k3s/01-dev

2021
https://www.youtube.com/playlist?list=PL34sAs7_26wPnQeGnFNfeYB1uV54AaTRX
JustMeAndOpensource - Set up Rancher K3S cluster with external etcd datastore of 19:19
    https://www.youtube.com/watch?v=pOf5o3xpksI
2020
RancherLabs - Intro to K3s Online Training: Lightweight Kubernetes of 1:22:39
    https://www.youtube.com/watch?v=vRjk3r9fwFo
RancherLabs - Rancher Meetup - May 2020 - Simplifying Your Cloud-Native Development Workflow With K3s, K3c and K3d 0:00 of 1:47:31
    https://www.youtube.com/watch?v=hMr3prm9gDM
2019
RancherLabs - Kubernetes Master Class: K3s Production Ready of 1:32:44
    https://www.youtube.com/watch?v=_lNnrrp-8zQ
RancherLabs - Intro to k3s: Lightweight Kubernetes of 1:28:00
    https://www.youtube.com/watch?v=FrGpJNI8na4
    https://www.youtube.com/watch?v=2LNxGVS81mE