---

- block:
  - name: "Is custom datadir present ?"
    stat:
      path: "{{ elasticsearch_custom_datadir }}"
    register: elasticsearch_custom_datadir_test

  - name: "read the real datadir"
    command: readlink -f /var/lib/elasticsearch
    changed_when: false
    register: elasticsearch_current_real_datadir_test
  tags:
    - elasticsearch
  when: elasticsearch_custom_datadir

- block:
  - name: elasticsearch is stopped
    service:
      name: elasticsearch
      state: stopped

  - name: Move elasticsearch datadir to custom datadir
    command: mv {{ elasticsearch_current_real_datadir_test.stdout }} {{ elasticsearch_custom_datadir }}
    args:
      creates: "{{ elasticsearch_custom_datadir }}"

  - name: Symlink {{ elasticsearch_custom_datadir }} to /var/lib/elasticsearch
    file:
      src: "{{ elasticsearch_custom_datadir }}"
      dest: '/var/lib/elasticsearch'
      state: link

  - name: elasticsearch is started
    service:
      name: elasticsearch
      state: started
  tags:
    - elasticsearch
  when: elasticsearch_custom_datadir and elasticsearch_custom_datadir != elasticsearch_current_real_datadir_test.stdout and not elasticsearch_custom_datadir_test.stat.exists