Elastic

This plugin allows Moodle to use Elasticsearch as the search engine for Moodle’s Global Search.
The following features are provided by this plugin: Multiple versions of Elasticsearch, File indexing, Request signing, compatible with Amazon Web Services (AWS), Respects Moodle Proxy settings, Image recognition and webservices.
Moodle Global Search – Elasticsearch Backend
This plugin allows Moodle to use Elasticsearch as the search engine for Moodle’s Global Search.
The following features are provided by this plugin:
Multiple versions of Elasticsearch
File indexing
Request signing, compatible with Amazon Web Services (AWS)
Respects Moodle Proxy settings
Image recognition and indexing (via external service)
Supported Versions
Currently this plugin is tested to work against the following versions of Elasticsearch:
2.4.4
5.5.0
6.0.0
6.4.1
6.6.1
Verified Platforms
This plugin has been tested to work on the following cloud platforms:
Microsoft Azure