Pankaj310892 / kubeclust

Kubernetes 1.13.2 cluster setup on Virtualbox VMs using kubeadm

Kubeclust

Kubeclust sets up a kubernetes 1.13.2 cluster on three VirtualBox virtual machines (one master and two workers) running Ubuntu 18.04 LTS using kubeadm.

Prerequisites

• Virtual environment with Python3
• Virtualbox
• Vagrant

Installation

In the virtual environment, run

$ pip install -r requirements.txt

Create Virtual Machines

Run vagrant up to bring up three virtual machines.

The hostnames and IP addresses of the machines are as follows:

kubemaster — 192.168.99.20

worker1 – 192.168.99.21

worker2 – 192.168.99.22

Create kubernetes cluster

In the virtual environment created earlier, run

$ make cluster

As soon as it is done, you can ssh into kubemaster to see the nodes and the pods in the cluster. They may take a while to get ready.

vagrant@kubemaster:~$ kubectl get nodes
NAME         STATUS     ROLES    AGE   VERSION
kubemaster   Ready      master   54s   v1.13.2
worker1      Ready      <none>   27s   v1.13.2
worker2      Ready      <none>   27s   v1.13.2

vagrant@kubemaster:~$ kubectl get pods --all-namespaces
NAMESPACE     NAME                                 READY   STATUS    RESTARTS   AGE
kube-system   calico-node-6fkt5                    2/2     Running   0          67s
kube-system   calico-node-n972r                    2/2     Running   0          61s
kube-system   calico-node-v965s                    2/2     Running   0          61s
kube-system   coredns-86c58d9df4-9lb8f             1/1     Running   0          67s
kube-system   coredns-86c58d9df4-ht6f8             1/1     Running   0          67s
kube-system   etcd-kubemaster                      1/1     Running   0          14s
kube-system   kube-apiserver-kubemaster            1/1     Running   0          9s
kube-system   kube-controller-manager-kubemaster   1/1     Running   0          31s
kube-system   kube-proxy-vv78z                     1/1     Running   0          61s
kube-system   kube-proxy-x2mn9                     1/1     Running   0          61s
kube-system   kube-proxy-ztq8q                     1/1     Running   0          67s
kube-system   kube-scheduler-kubemaster            1/1     Running   0          21s

Tear down cluster

$ make clean

This will drain the nodes, make sure that they are empty before shutting them down and reset all kubeadm installed state.