Preparing Nodes¶

Install Ubuntu¶

Download Ubuntu Server 21.04 ISO and flash it to a USB drive, boot the device from the USB drive and install Ubuntu

Copy over SSH key from the machine running Ansible¶

ssh-copy-id ubuntu@192.168.10.10

Configure static IPs¶

Set a static IP on your nodes or you may run into issues with Alpine containers

# /etc/netplan/00-installer-config.yaml
network:
  ethernets:
    eno1:
      addresses:
        - 192.168.3.10/24
      gateway4: 192.168.3.1
      nameservers:
        addresses:
          - 192.168.3.1
        search: []
  version: 2

Prepare Ubuntu for k8s¶

Update Ansible inventory configuration and run the ubuntu-prepare playbook

ansible-playbook -i ansible/inventory/home-cluster/hosts.yml ansible/playbooks/kubernetes/ubuntu-prepare.yml