All credits go to @alexellis and his description.
I don't want to duplicate the blogpost but I am not able to get K8s running on my RPi 3 at all. So far I have tried to install those versions:
- 2018-10-09-raspbian-stretch-lite.zip
- docker 18.06.1-ce
- k8s 1.12.1
But this combination is not working at all for me. I have the exact same error.
For me this version is working. So right now I am only trying to find a working combination and want to share my experiences with the communnity. Maybe those scripts get obsolete with a new version of k8s. We will see...