self-hosting/roles/kubernetes/tasks/kubeadm-multi.yml

---
- name: Distribute /etc/kubernetes/pki to other masters
  synchronize:
    src: /etc/kubernetes/pki/
    dest: /etc/kubernetes/pki/
    recursive: True
  delegate_to: "{{ initial_master }}"
  # forward ssh agent by preserving environment variables with sudo
  become_flags: "-E"

- block:
    - name: Initializing other masters
      shell: |
        kubeadm init \
          --config /tmp/kubeadm_config
          {%- if kubeadm_ignore_preflight_errors | length > 0 %} \
            --ignore-preflight-errors={{ kubeadm_ignore_preflight_errors }}
          {% endif %}
      register: kubeadm_output
      failed_when: "'Your Kubernetes master has initialized successfully' not in kubeadm_output.stdout"

    - name: Kubeadm output
      debug: var=kubeadm_output

  when: ansible_hostname not in hostvars[initial_master]['kubectl_output'].stdout

# fixing kubectl
- name: kubectl config
  copy:
    src: /etc/kubernetes/kubelet.conf
    dest: /root/.kube/config
    remote_src: True

- name: Wait for master to be ready
  shell: "kubectl get nodes $(hostname) | tail -n+2 | awk '{ print $2 }'"
  register: result
  until: result.stdout.find("Ready") == 0
  retries: 36
  delay: 10
  changed_when: no