okd/playbooks/common/openshift-node/restart.yml

---
- name: Restart nodes
  hosts: oo_nodes_to_config
  serial: "{{ openshift_restart_nodes_serial | default(1) }}"
  tasks:
  - name: Restart docker
    service: name=docker state=restarted

  - name: Update docker facts
    openshift_facts:
      role: docker

  - name: Restart containerized services
    service: name={{ item }} state=started
    with_items:
    - etcd_container
    - openvswitch
    - "{{ openshift.common.service_type }}-master"
    - "{{ openshift.common.service_type }}-master-api"
    - "{{ openshift.common.service_type }}-master-controllers"
    - "{{ openshift.common.service_type }}-node"
    failed_when: false
    when: openshift.common.is_containerized | bool

  - name: Wait for master API to come back online
    wait_for:
      host: "{{ openshift.common.hostname }}"
      state: started
      delay: 10
      port: "{{ openshift.master.api_port }}"
    when: inventory_hostname in groups.oo_masters_to_config

  - name: restart node
    service:
      name: "{{ openshift.common.service_type }}-node"
      state: restarted

  - name: Wait for node to be ready
    command: >
      {{ hostvars[groups.oo_first_master.0].openshift.common.client_binary }} get node {{ openshift.common.hostname | lower }} --no-headers
    register: node_output
    delegate_to: "{{ groups.oo_first_master.0 }}"
    when: inventory_hostname in groups.oo_nodes_to_config
    until: "{{ node_output.stdout.split()[1].startswith('Ready')}}"
    # Give the node two minutes to come back online.
    retries: 24
    delay: 5