Introduce copy of k3s.yaml file to detect changes and skip control node changes (#347)

      become: false

      changed_when: false

    # Copy the k3s config to a second file to detect changes.

    # If no changes are found, we can skip copying the kubeconfig to the control node.

    - name: Copy k3s.yaml to second file

      ansible.builtin.copy:

        src: /etc/rancher/k3s/k3s.yaml

        dest: /etc/rancher/k3s/k3s-copy.yaml

        mode: "0600"

        remote_src: true

      register: copy_k3s_yaml_file

    - name: Apply K3S kubeconfig to control node

      when: kubectl_installed.rc == 0

      when:

        - kubectl_installed.rc == 0

        - copy_k3s_yaml_file.changed

      block:

        - name: Copy kubeconfig to control node

          ansible.builtin.fetch: