DDEV Drupal Solr

What is the difference between this and ddev-solr

Please consider using ddev/ddev-solr, which runs Solr in the modern “Cloud” mode. This is the recommended and maintained Apache Solr integration. ddev-solr offers several advantages. If you are using Drupal, the biggest advantage is that you can update the Solr Configset from the UI or with a Drush command everytime you update search_api_solr.

The current addon runs in “classic standalone” mode. It is probably simpler at first to setup, but comes with the added maintenance steps for configsets. Most Solr hosting service providers run “Solr Cloud” as a backend.

Overview

Apache Solr is the blazing-fast, open source, multi-modal search platform built on the full-text, vector, and geospatial search capabilities of Apache Lucene™.

This add-on integrates Solr for Drupal 9+ into your DDEV project. It follows the Setting up Solr (single core) - the classic way recipe.

Installation on Drupal 9+

ddev add-on get ddev/ddev-drupal-solr
ddev restart

You may need to install the relevant Drupal requirements:

ddev composer require drush/drush drupal/search_api_solr

Enable the search_api_solr module either using the web interface or
```
ddev drush en -y search_api_solr
```
Create a Search API server at admin/config/search/search-api -> “Add server”
Configure the server with the following settings:
- Set “Server name” to anything you want. Maybe ddev-solr-server.
- Set “Backend” to Solr
- Configure Solr backend
  - Set “Solr Connector” to Standard
  - Set “Solr host” to solr
  - Set “solr core” to dev
  - Under “Advanced server configuration” set the “solr.install.dir” to /opt/solr.
Restart DDEV: ddev restart

Installation on Drupal 7

DDEV / Solr configuration

Install this add-on: ddev add-on get ddev/ddev-drupal-solr
Set the version of Solr version 7: Edit the .ddev/docker-compose.solr.yaml file. Replace image: solr:8 with image: solr:7 on line 34.
Add the schema needed for version 7: Defaults can be found in the Search API Solr in the search_api_solr/solr-conf/7.x directory . Copy these files into .ddev/solr/conf.
Restart DDEV: ddev restart.
Confirm Solr is working by visiting http://<projectname>.ddev.site:8983/solr/.
If the Ddev drush version is too new for Drupal 7, you may need to symlink drush to the drush8 provided with Ddev. You can do this by adding a post-start hook inside your .ddev/config.yaml file as follows
```
 hooks:
   post-start:
     - exec: ln -s /usr/local/bin/drush8 /usr/local/bin/drush
```
Restart DDEV: ddev restart.

Drupal configuration

You may need to install the relevant Drupal modules: ddev drush dl search_api_solr.
Enable the search_api_solr module either using the web interface or ddev drush en -y search_api_solr
Create a Search API server at admin/config/search/search-api -> “Add server”
Configure the server with the following settings:
- Set “Server name” to anything you want. Maybe ddev-solr-server.
- Set “Protocol” to http
- Set “Solr host” to solr
- Set “Solr port” to 8983
- Set “path” to /solr/dev. The “Solr server URI” should be http://solr:8983/solr/dev when done.
Create a Search API index at admin/config/search/search-api -> “Add index”
Configure the index as needed, but this is common:
- Set “Server name” to anything you want. Maybe ddev-solr-index-content.
- Set “item type” to content
- Set the server to ddev-solr-server (or whaver the name is)
- Index the site.
Build a new view of indexed content ddev-solr-index-content (or whatever the name is)
Configure the view as needed, but this is common:
- Set “View name” to anything you want. Maybe Solr Search.
- Set “Show” to ddev-solr-index-content (or whatever the name is)
- Tick the box for “Create a page”
  - Set the “Page title” to Search or whatever you prefer
  - Set the “Path” to /search or whatever you prefer
  - Set “Display format” to HTML list + OL / Rendered entity + Search result view mode
- Continue and edit
- Add filters:
  - Add an EXPOSED filter for Search: Fulltext search (exposed)
  - Add additional filters as needed (recommended: Indexed Content: Status (= Published))
- Add sort criteria:
  - Add a sort on Search: Relevance (desc)
- Set “access control: to Permission / View published content
- Set “Exposed form style” to Input required
- Set “No Results behavior” to Global:text / No results matched your search.
- (Optional) Set “Exposed form in block” setting

Outdated Solr config files

If you get a message about Solr having outdated config files, you need to update the included Solr config files.

Drupal 9+:

Click “Get config.zip” on the server page
Unzip the files, and put the config files into .ddev/solr/conf/
Restart DDEV: ddev restart

Drupal 7

Locate the example files in the search_api_solr/solr-conf/7.x directory .
Copy these files into .ddev/solr/conf.
Restart DDEV: ddev restart.

Other frameworks

See the documentation in the doc folder

Usage

Command	Description
`ddev launch :8943`	Open Solr Admin (HTTPS) in your browser (`https://<project>.ddev.site:8943`)
`ddev launch :8983`	Open Solr Admin (HTTP) in your browser (`http://<project>.ddev.site:8983`)
`ddev describe`	View service status and used ports for Solr
`ddev logs -s solr`	Check Solr logs

Explanation

This originates from the classic Drupal solr:8 image recipe used for a long time by Drupal users and compatible with search_api_solr.

This add-on installs a .ddev/docker-compose.solr.yaml using the solr:8 docker image.
A standard Drupal 9+ Solr configuration is included in .ddev/solr/conf.
A .ddev/docker-entrypoint-initdb.d/solr-configupdate.sh is included and mounted into the Solr container so that you can change Solr config in .ddev/solr/conf with just a ddev restart.

Interacting with Apache Solr

The Solr Admin interface will be accessible at: https://<projectname>.ddev.site:8943/solr/ and http://<projectname>.ddev.site:8983/solr/. For example, if the project is named myproject the hostname will be: https://myproject.ddev.site:8943/solr/.
To access the Solr container from inside the web container use: http://solr:8983/solr/
A Solr core is automatically created by default with the name “dev”; it can be accessed (from inside the web container) at the URL: http://solr:8983/solr/dev or from the host at https://<projectname>.ddev.site:8943/solr/#/~cores/dev. You can obviously create other cores to meet your needs.

Alternate Core Name

If you want to use a core name other than the default “dev”, add a .ddev/docker-compose.solr-env.yaml with these contents, using the core name you want to use:

services:
  solr:
    environment:
      - SOLR_CORENAME=somecorename

Change SOLR_CORENAME environment variable in the environment: section.
Change your Drupal configuration to use the new core.

You can delete the “dev” core from https://<projectname>.ddev.site:8943/solr/#/~cores/dev by clicking “Unload”.

Multiple Solr Cores

If you would like to use more than one Solr core, add a .ddev/docker-compose.solr_extra.yaml to override some of the default configuration.

Define a mount point for each core you require. Add new mount points for each core, for example:

 services:
   solr:
     volumes:
       - ./solr:/solr-conf
       - ./core2:/core2-conf
       - ./core3:/core3-conf

Create the directories for your new cores’ config, and copy the desired solr config in to it, eg:

 cp -R .ddev/solr .ddev/core2
 cp -R .ddev/solr .ddev/core3
 cp -R path/to/core2-config/* .ddev/core2/conf/
 cp -R path/to/core3-config/* .ddev/core3/conf/

Set the entrypoint value to use precreate-core instead of solr-precreate and add the additional cores, along with a command to start solr afterwards:

 services:
   solr:
     entrypoint: 'bash -c "VERBOSE=yes docker-entrypoint.sh precreate-core solrconf /solr-conf ; precreate-core core2 /core2-conf ; precreate-core core3 /core3-conf  ; exec solr -f "'

Your finished .ddev/docker-compose.solr_extra.yaml file should now look something like this:

 services:
   solr:
     volumes:
       - ./solr:/solr-conf
       - ./core2:/core2-conf
       - ./core3:/core3-conf
     entrypoint: 'bash -c "VERBOSE=yes docker-entrypoint.sh precreate-core solrconf /solr-conf ; precreate-core core2 /core2-conf ; precreate-core core3 /core3-conf  ; exec solr -f "'

Finally, ddev restart to pick up the changes and create the new cores.

Caveats

This recipe is designed for versions of Solr solr:8 and beyond. Acquia’s hosting requires Solr 7. You’ll want to follow the Drupal 7 instructions above, or see the contributed recipes for older versions of Solr.

Credits

Contributed by @rfay

Maintained by @mkalkbrenner, @bserem, and the DDEV team