ansible-role-elasticsearch/tasks/elasticsearch-plugins.yml

---

# es_plugins_reinstall will be set to true if elasticsearch_install_from_repo.changed or elasticsearch_install_from_package.changed
# i.e. we have changed ES version(or we have clean installation of ES), or if no plugins listed. Otherwise it is false and requires explicitly setting.
- set_fact: es_plugins_reinstall=true
  when: ((elasticsearch_install_from_repo is defined and elasticsearch_install_from_repo.changed) or (elasticsearch_install_from_package is defined and elasticsearch_install_from_package.changed)) or es_plugins is not defined or es_plugins is none

- set_fact: list_command="list"

- set_fact: list_command="--list"
  when: es_version | version_compare('2.0', '<')

- set_fact: es_binary_prefix=""

- set_fact: es_binary_prefix="elasticsearch-"
  when: es_version | version_compare('5.0', '>=')

#List currently installed plugins - ignore xpack if > v 2.0
- name: Check installed elasticsearch plugins
  shell: "{{es_home}}/bin/{{ es_binary_prefix }}plugin {{list_command}}{% if es_version | version_compare('5.0', '<') %} | sed -n '1!p' | cut -d '-' -f2-{% endif %}{% if es_version | version_compare('2.0', '>') %} | grep -vE '{{supported_xpack_features | join('|')}}|license'{% endif %}"
  register: installed_plugins
  failed_when: "'ERROR' in installed_plugins.stdout"
  changed_when: False
  ignore_errors: yes
  environment:
    CONF_DIR: "{{ conf_dir }}"
    ES_INCLUDE: "{{ instance_default_file }}"

# This removes any currently installed plugins (to prevent errors when reinstalling)
- name: Remove elasticsearch plugins
  command: "{{es_home}}/bin/{{ es_binary_prefix }}plugin remove {{item}} --silent"
  ignore_errors: yes
  with_items: "{{ installed_plugins.stdout_lines | default([]) }}"
  when: es_plugins_reinstall and installed_plugins.stdout_lines | length > 0 and not 'No plugin detected' in installed_plugins.stdout_lines[0]
  notify: restart elasticsearch
  register: plugin_removed
  environment:
    CONF_DIR: "{{ conf_dir }}"
    ES_INCLUDE: "{{ instance_default_file }}"

- name: Install elasticsearch plugins
  command: >
    {{es_home}}/bin/{{ es_binary_prefix }}plugin install {{ item.plugin }}{% if item.version is defined and item.version != '' %}/{{ item.version }}{% endif %} {% if item.proxy_host is defined and item.proxy_host != '' and item.proxy_port is defined and item.proxy_port != ''%} -DproxyHost={{ item.proxy_host }} -DproxyPort={{ item.proxy_port }} {% elif es_proxy_host is defined and es_proxy_host != '' %} -DproxyHost={{ es_proxy_host }} -DproxyPort={{ es_proxy_port }} {% endif %} --silent
  register: plugin_installed
  failed_when: "'ERROR' in plugin_installed.stdout"
  changed_when: plugin_installed.rc == 0
  with_items: "{{ es_plugins | default([]) }}"
  when: not es_plugins is none and es_plugins_reinstall
  notify: restart elasticsearch
  environment:
    CONF_DIR: "{{ conf_dir }}"
    ES_INCLUDE: "{{ instance_default_file }}"

#Set permissions on plugins directory
- name: Set Plugin Directory Permissions
  file: state=directory path={{ es_home }}/plugins owner={{ es_user }} group={{ es_group }} recurse=yes