K3S installation setup with Ansible

hosts

[cluster]
kubemaster ansible_host=192.168.2.40 ansible_user=pi
worker-1 ansible_host=192.168.2.41 ansible_user=pi
worker-2 ansible_host=192.168.2.42 ansible_user=pi
worker-3 ansible_host=192.168.2.43 ansible_user=pi

[cluster-masters]
kubemaster ansible_host=192.168.2.40 ansible_user=pi

[cluster-workers]
worker-1 ansible_host=192.168.2.41 ansible_user=pi
worker-2 ansible_host=192.168.2.42 ansible_user=pi
worker-3 ansible_host=192.168.2.43 ansible_user=pi

k3s-cluster.yaml

---

- name: Initialize k3s master nodes
  hosts: cluster-masters
  gather_facts: yes
  tasks:
    - name: Install and start k3s
      shell: 'curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="server --docker --no-deploy traefik" sh'

    - name: Get token
      shell: 'cat /var/lib/rancher/k3s/server/node-token'
      become: true
      register: cluster_token

    - name: Create facts
      set_fact:
        cluster_token: '{{ cluster_token.stdout }}'

- name: Starter workers
  hosts: cluster-workers
  gather_facts: yes
  tasks:
    - name: Start cluster worker node
      shell: 'curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="agent --docker" K3S_URL=https://kubemaster:6443 K3S_TOKEN={{ hostvars.kubemaster.cluster_token }} sh'