Moodle

Moodle 3.1 or newer, the version that brought global search.

The PHP Solr extension (PECL solr) on your Moodle web server. Moodle's Solr engine needs it; without it the Solr settings page says The Apache Solr PHP extension is not installed.

An Opensolr Index: its Host from the Info tab, and its username and password. A new index uses opensolr and your master API key: HTTP Basic Auth.

Enable global search

Site administration › Advanced features: tick Enable global search and save.

Choose Solr

Site administration › Plugins › Search › Manage global search: set Search engine to Solr and save.

Enter the connection

Site administration › Plugins › Search › Solr. Host name: the Host of your index, without https://. Index name: the name of your index. Secure mode: ticked. Port: 443. HTTP authentication username and password: those of your index. Save.

Create the schema

Signed in as an administrator, open https://YOUR-MOODLE/search/engine/solr/setup_schema.php on the still empty index. Moodle adds its fields through the Solr Schema API and answers The schema is ready to be used. If Solr reports that the schema cannot be changed, switch the index to a managed schema first: Move from schema.xml to managed-schema.

Index

From the Moodle folder, run php search/cli/indexer.php (add --reindex to rebuild everything). After that, the scheduled task Global search indexing keeps the index up to date through the Moodle cron.