This playbook sets up a k3s cluster in High-Availability (HA) and installs Rancher and Longhorn.

run ./play.sh

# when promoted for BECOME password enter password for local pc running script
# If Master and slave nodes are configured with passwordless sudo (insecure) remove the following lines from main.yml
  vars:
    ansible_sudo_pass: "{{ pass }}"

Credits and many thanks to

• Ansible-k3sup this play book originally started as a fork from Ansible-k3sup
• Rancher the creators of k3s,
• Longhorn maintained by Cloud-Native Computing Foundation,
• alexellis for k3sup,
• Kube-VIP,
• RobeDevOps for ansible-k3s
• itwars for the inspiring playbook
• JimsGarage for his video and tutorials. Playbook was developed based on his K3S script

This playbook consist of roles executing the following main functions:

• On master and slave systems
  • When deploying to Raspbian
    • Enables cgroups 'cpu' + 'memory' in /boot/cmdline.txt
    • Disable the 'dphys-swapfile' service in systemd
  • Optional playbook to clean and remove K3S
• Only on localhost
  • Install k3sup setup script
    • Then install k3sup binary
  • Configure UFW and Firewalld with ports required by K3S if installed
  • Create k3s cluster
    • use Kube-VIP for loadbalancing
    • Creates cluster in High-Availability (HA)
  • Install Rancher
  • Install Longhorn

For more details see the roles README.md files.

[master]
master1 ansible_user=admin

[masters]
master2 ansible_user=admin
master3 ansible_user=admin

[slave]
slave1 ansible_user=admin
slave2 ansible_user=admin
slave3 ansible_user=admin

---
---
- hosts: k3s_cluster
  become: yes
  vars_files: inventory/group_vars/secret.yml
  vars:
    ansible_sudo_pass: "{{ pass }}"
  roles:
    - container_features
    - dphys_swapfile

- hosts: localhost
  roles:
    - bootstrap_k3sup
    - k3s_cluster

- hosts: k3s_cluster
  become: yes
  vars_files: inventory/group_vars/secret.yml
  vars:
    ansible_sudo_pass: "{{ pass }}"
  roles:
    - undosudo