Getting a few errors when trying to create my cluster

[steentottrup]

When trying to follow the manual steps, I get a few errors, I hope these can be addressed.

When running this:

curl -sSL get.docker.com | sh && \
sudo usermod pi -aG docker
newgrp docker

I get this: newgrp: group 'docker' does not exist

Should it be??:

curl -sSL get.docker.com | sh && \
sudo usermod pi -aG docker \
newgrp docker

Anyway, if I try running the lines above, I get this: E: The repository 'https://download.docker.com/linux/raspbian 10 Release' does not have a Release file.

And when moving on in the steps, I get the same error later on when running:

curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - && \
  echo "deb http://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list && \
  sudo apt-get update -q && \
  sudo apt-get install -qy kubeadm

Any idea what this is? The is my first venture into kubernetes on Raspberry Pi, so it might just be me that's clueless here.

[DoGab]

@steentottrup What's the version of your raspbian release? I assume you are using raspbian buster. There currently is no available docker release for raspbian buster and that's why you get those errors.
Regarding the newgrp docker. If docker gets installed successfully via the script pulled with curl it will add a group docker. So there is no need to execute newgrp docker.

I've written a Tutorial how to install kubernetes version 1.15.0 on raspberry pi. You can follow the instructions here

[steentottrup]

Oh sorry, I'm getting the latest Raspbian (Buster) Lite off their site, 2019-06-20-raspbian-buster-lite

Thank you!

[steentottrup]

Great tutorial, but you write that Raspbian Stretch is needed, and I can't seem to locate any version of Stretch, just Buster? (Can lite be used?)

[DoGab]

@steentottrup Lite is just a lightweight version of buster which contains less packages and no desktop ui. You can get old releases of raspbian here. Get the second latest release - raspbian-2019-04-09/.
Btw. i've updated the tutorial.

[steentottrup]

Thank you! I'm pretty much clueless at this, so your tutorial is getting a serious n00b review :)

[DoGab]

You're welcome! Sounds good, do not hesitate to contact me :) you can also open a new issue on my project so we can close this issue because it's actually solved.

[alexellis]

I would recommend still using stretch. There is a link in my comment in the main repo - follow through to the link about Buster and Docker being broken.

[alexellis]

@DoGab thanks for the assistance 👍