Setting up a kubernetes cluster

Create 5 vms and install minimal centos8

Copy your ssh key to each node to be able to ssh with no password

  ssh-copy-id root@ip1
  ssh-copy-id root@ip2
  ssh-copy-id root@ip3
  ssh-copy-id root@ip4
  ssh-copy-id root@ip5

Install ansible to a pc to manage the cluster nodes

yum install ansible vim <your_hosts_file>

Add thew following:

[kub-all]
ip1
ip2
ip3
ip4
ip5
...

[kub-masters]
ip1

[initkubmaster]
ip1

[kub-workers]
ip2
ip3
ip4
ip5
....

Create your vars file

cp vars.dist <your_vars_file> and edit

Run playbook

ansible-playbook -i <your_hosts_file> -e @<your_vars_file> playbook/.yaml