---
# The official procedure for upgrade elasticsearch:
# https://www.elastic.co/guide/en/elasticsearch/reference/5.6/restart-upgrade.html
- name: Disable shard allocation
  uri:
    url: "{{ internal_protocol }}://{{ kolla_internal_vip_address | put_address_in_context('url') }}:{{ elasticsearch_port }}/_cluster/settings"
    method: PUT
    status_code: 200
    return_content: yes
    body: {"transient":{"cluster.routing.allocation.enable": "none"}}
    body_format: json
  delegate_to: "{{ groups['elasticsearch'][0] }}"
  run_once: true

- name: Perform a synced flush
  uri:
    url: "{{ internal_protocol }}://{{ kolla_internal_vip_address | put_address_in_context('url') }}:{{ elasticsearch_port }}/_flush/synced"
    method: POST
    status_code: 200
    return_content: yes
    body_format: json
  delegate_to: "{{ groups['elasticsearch'][0] }}"
  run_once: true
  retries: 10
  delay: 5
  register: result
  until: ('status' in result) and result.status == 200

# Stop all elasticsearch containers before applying configuration to ensure
# handlers are triggered to restart them.
- name: Stopping all elasticsearch containers
  vars:
    service_name: "elasticsearch"
    service: "{{ elasticsearch_services[service_name] }}"
  become: true
  kolla_docker:
    action: "stop_container"
    common_options: "{{ docker_common_options }}"
    name: "elasticsearch"
    image: "{{ service.image }}"
    environment: "{{ service.environment }}"
    volumes: "{{ service.volumes }}"
  when: inventory_hostname in groups[service.group]

- include_tasks: config.yml

- name: Flush handlers
  meta: flush_handlers