Notes.md

Notes on getting Kubernetes up and running on Armbian

Changing kubelet startup command

The default kubelet invoke script in armbian breaks with newer versions of kubelet. We need to remove the kubelet argument --reconcile-cidr, cloud provider, --cgroup-root and --non-masquerade-cidr from /etc/systemd/system/kubelet.service.d/10-kubelet.conf

Disabling swap

The swap partition needs to be disabled for kubernetes.

apt-get install dphys-swapfile
sudo dphys-swapfile swapoff
sudo dphys-swapfile uninstall
sudo update-rc.d dphys-swapfile remove

Finding out who uses a given port

netstat -lnp | grep 1025

Setting up kubeadm

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 kubelet kubectl

Getting all the ports on mac

networksetup -listallhardwareports