README.md

k8s-quickstart

This repository contains scripts to automate k8s installation and set up a cluster with kubeadm.

How to install

Clone the repository in all nodes (Master and workers)

git clone https://github.com/vito-filo/k8s-quickstart.git

On the Master node

Change file permission and execute the master_init script.

cd k8s-quickstart
chmod +x master_init.sh
sudo ./master_init.sh

At the end of the process this message will be printed

Then you can join any number of worker nodes by running the following on each as root:
kubeadm join 172.45.32.70:6443 --token i8d7xz.w6bhac21aw4ei6nu \
    --discovery-token-ca-cert-hash sha256:c76de3b9ddf430ea65f702d0d4cs940frt47f998abdc57bc2bdc938df610e207

copy the cluster ip, connection token, and ca-cert in order to join the cluster from the worker node.

On the worker node

Change file permission and execute the worker_init script.

cd k8s-quickstart
chmod +x worker_init.sh

sudo bash worker_init.sh -i 172.45.32.70:6443 -t i8d7xz.w6bhac21aw4ei6nu -ca sha256:c76de3b9ddf430ea65f702d0d4cs940frt47f998abdc57bc2bdc938df610e207

Check the installation

On teh worker node run:

# kubectl get nodes
NAME      STATUS    ROLES     AGE       VERSION
kube-01   Ready     master    8m        v1.9.3
kube-02   Ready     <none>    6m        v1.9.3
kube-03   Ready     <none>    6m        v1.9.3

you should see a list wih the master an all nodes in the cluster.