okd/roles/openshift_metrics/handlers/main.yml

---
- name: restart master
  systemd: name={{ openshift.common.service_type }}-master state=restarted
  when: (openshift.master.ha is not defined or not openshift.master.ha | bool) and (not (master_service_status_changed | default(false) | bool))
  notify: Verify API Server

- name: Verify API Server
  # Using curl here since the uri module requires python-httplib2 and
  # wait_for port doesn't provide health information.
  command: >
    curl --silent --tlsv1.2
    {% if openshift.common.version_gte_3_2_or_1_2 | bool %}
    --cacert {{ openshift.common.config_base }}/master/ca-bundle.crt
    {% else %}
    --cacert {{ openshift.common.config_base }}/master/ca.crt
    {% endif %}
    {{ openshift.master.api_url }}/healthz/ready
  args:
    # Disables the following warning:
    # Consider using get_url or uri module rather than running curl
    warn: no
  register: api_available_output
  until: api_available_output.stdout == 'ok'
  retries: 120
  delay: 1
  changed_when: false