ODROKUBE
A Kubernetes cluster (k3s) on odroid boards.
This project hosts the code used to create my fancy odroid cluster running k3s. The boards are running Armbian Bionic 4.19
Ansible inventory
In my setup, I configured the DNS of my ISP to assign DNS anmes to the boards based on their static
addresses. It allows to create the ansible inventory ansible/inv.ini:
[odroid]
odroid01
odroid02
odroid03
odroid04
[kube-masters]
odroid02
[kube-workers]
odroid01
odroid03
odroid04
The kube-masters defines the boards where k3s will be configured to act as a master nodes.
The kube-wokers defines the boards where k3s will be configured to act as a worker nodes.
Initialize the boards
Root login is enabled by default on Armbian so the first execution will have to be
run with the root user, default password is 1234.
$ ansible-playbook -i ansible/inv.ini ansible/init-odroid.yml -u root --ask-pass
After the first execution, the ansible user can be used with ssh key authentication:
$ ansible-playbook -i ansible/inv.ini ansible/init-odroid.yml -u ansible
Accessing cluster from outside
Copy /etc/rancher/k3s/k3s.yaml on your machine located outside the cluster as ~/.kube/config. Then replace "localhost" with the IP or name of your k3s server. kubectl can now manage your k3s cluster.