---
- include: evaluate_groups.yml
# TODO: verify this is an HA environment
# TODO: fork for pacemaker vs haproxy (based on?)

- name: Validate configuration for rolling restart
  hosts: oo_masters_to_config
  tasks:
  - set_fact:
      openshift_rolling_restart_mode: "{{ openshift_rolling_restart_mode | default('services') }}"
  - fail:
      msg: "openshift_rolling_restart_mode must be set to either 'services' or 'system'"
    when: openshift_rolling_restart_mode is defined and openshift_rolling_restart_mode not in ["services", "system"]

# Creating a temp file on localhost, we then check each system that will
# be rebooted to see if that file exists, if so we know we're running
# ansible on a machine that needs a reboot, and we need to error out.
- name: Create temp file on localhost
  hosts: localhost
  connection: local
  become: no
  gather_facts: no
  tasks:
  - local_action: command mktemp
    register: mktemp
    changed_when: False

- name: Check if temp file exists on any masters
  hosts: oo_masters_to_config
  tasks:
  - stat: path="{{ hostvars.localhost.mktemp.stdout }}"
    register: exists

- name: Cleanup temp file on localhost
  hosts: localhost
  connection: local
  become: no
  gather_facts: no
  tasks:
  - file: path="{{ hostvars.localhost.mktemp.stdout }}" state=absent

- name: Fail if restarting the system where ansible is running
  hosts: oo_masters_to_config
  any_errors_fatal: true
  tasks:
  - fail: msg="Cannot run playbook on a host that will be restarted."
    when: exists.stat.exists

- name: Restart Masters
  hosts: oo_masters_to_config
  serial: 1
  roles:
  - openshift_facts
  tasks:
  - name: Restart master system
    # https://github.com/ansible/ansible/issues/10616
    shell: sleep 2 && shutdown -r now "OpenShift Ansible master rolling restart"
    async: 1
    poll: 0
    ignore_errors: true
    become: yes
    when: openshift_rolling_restart_mode == 'system'
  - name: Restart master services
    service:
      name: "{{ openshift.common.service_type }}-master-api"
      state: restarted
    # NOTE: no need to check openshift_master_ha here, we know it must be,
    # thus the api service is the one we restart.
    when: openshift_rolling_restart_mode == 'services'

  - name: Wait for master API to come back online
    become: no
    local_action:
      module: wait_for
        host="{{ inventory_hostname }}"
        state=started
        delay=10
        port=8443  # TODO: should this be made a master host variable?