linuxkit/projects/kubernetes

Kubernetes and LinuxKit

This project aims to demonstrate how one can create minimal and immutable Kubernetes OS images with LinuxKit.

Make sure to cd projects/kubernetes first.

Edit kube-master.yml and add your public SSH key to files section.

Build OS images:

make build-vm-images

Boot Kubernetes master OS image using hyperkit on macOS:

./boot.sh

Get IP address of the master:

ip addr show dev eth0

Login to the kubelet container:

./ssh_into_kubelet.sh <master-ip>

Manually initialise master with kubeadm:

kubeadm-init.sh

Once kubeadm exits, make sure to copy the kubeadm join arguments, and try kubectl get nodes from within the master.

To boot a node use:

./boot.sh <n> [<join_args> ...]

More specifically, to start 3 nodes use 3 separate shells and run this:

shell1> ./boot.sh 1 --token bb38c6.117e66eabbbce07d 192.168.65.22:6443
shell2> ./boot.sh 2 --token bb38c6.117e66eabbbce07d 192.168.65.22:6443
shell3> ./boot.sh 3 --token bb38c6.117e66eabbbce07d 192.168.65.22:6443