CKA Lab

Laboratory environment for "Certified Kubernetes Administrator (CKA)" Linux Academy course

kubernetes v1.19 (to use a different version look at https://github.com/pbacterio/cka_lab/tags)

Build cluster

Execute: ./build_cluster.sh

This script creates three virtual machines:

name	IP
master	192.168.88.20
node1	192.168.88.21
node2	192.168.88.22

To access this machines just use vagrant ssh <machine>, for example:

vagrant ssh master or vagrant ssh node1

Access Kubernetes

The vagrant user on master node has admin credential for kubernetes. So you can use kubectl on a easy way.

Example:

[pbacterio@localhost cka_lab]$ vagrant ssh master
Last login: Mon Jan 28 09:24:31 2019 from 192.168.121.1
[vagrant@master ~]$ kubectl get nodes
NAME     STATUS   ROLES    AGE     VERSION
master   Ready    master   2m57s   v1.13.2
node1    Ready    <none>   2m15s   v1.13.2
node2    Ready    <none>   2m12s   v1.13.2

Shutdown

To stop all the machines execute: vagrant halt

Boot up

To boot up the cluster use: vagrant up

Destroy

If you want to destroy the cluster to build it again or just to free resources, use: vagrant destroy