ansible-role-elasticsearch/tasks/config.yml

---
- name: set heap size
  lineinfile:
    path: /etc/elasticsearch/jvm.options
    regexp: '^-{{ item }}'
    line: '-{{ item }}{{ elasticsearch_heap_size }}'
  loop:
    - Xms
    - Xmx
  notify: restart elasticsearch
  tags: elasticsearch

- name: copy config file
  copy:
    content: '{{ elasticsearch_full_config|to_nice_yaml }}'
    dest: /etc/elasticsearch/elasticsearch.yml
    owner: root
    group: elasticsearch
    mode: 0640
  notify: restart elasticsearch
  tags: elasticsearch