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README.md

Solr 7 for DDEV

The documented ApacheSolr integration with DDEV assumes version 8 of Solr, but the Solr docker images have different configuration locations between versions of Solr. This means that the docker-compose file and solr-configupdate.sh script need to be tweaked for use with Solr 7.

General documentation

Installation

  1. Copy the docker-compose.solr.yaml file and the solr/ directory into your .ddev/ directory
  2. Copy your desired solr core configuration into the .ddev/solr/conf/ directory
  • You may be able to download your hosting provider's default core configuration
  • You can also use the jump start configuration from search_api_solr module
  1. Start (or restart) ddev

Note: If you had a different version of solr running before, you'll need to delete the previous Solr docker volume so that the Solr 7 one can be created:

  1. Use docker volume ls to list the volumes
  2. Identify your Solr volume -- it will be named with the pattern ddev-example_solr
  3. Use docker volume rm [volume name] to remove the volume

Differences between default docker-compose.solr.yaml

If you don't want to follow the installation steps above, you can make these changes manually:

services.solr:
  image: solr:7
  volumes:
    - solr:/opt/solr

You'll also need to use the updated solr-configupdate.sh script, because the Solr 7 image uses the directory /opt/solr/server/solr/mycores/${CORENAME}/conf, which is different from some other versions.

Creating search indexes

The ddev start process should create the 'dev' index the first time it the project is started. However, in certain circumstances this does not happen. The solution is to manually create the index from the server:

$ ddev ssh --service solr
$ bin/solr create_core -c dev -d /solr-conf

This uses the Solr configuration files which ddev makes available from the path /solr-conf and creates an index named dev; it should result in the following output:

Copying configuration to new core instance directory:
/opt/solr/server/solr/dev

Creating new core 'dev' using command:
http://localhost:8983/solr/admin/cores?action=CREATE&name=dev&instanceDir=dev

{
  "responseHeader":{
    "status":0,
    "QTime":1580},
  "core":"dev"}

To create a additional indexes just change the dev portion of the command above, e.g.

$ ddev ssh --service solr
$ bin/solr create_core -c myindex -d /solr-conf

Troubleshooting

If the Solr service is not available to the client project (e.g. Drupal) using the expected URL format, the Solr index may not have been created correctly. It is possible to access Solr directly from the host OS by loading its full URL, e.g. http://myproject.ddev.site:8983.

Once http://myproject.ddev.site:8983 loads correctly it will redirect the browser to http://myproject.ddev.site:8983/solr/#/ which is the main dashboard page for Solr. From here it is possible to see how much memory and swap space the system is using.

To see if the index was created correctly click on the "Core Admin" link on the left menu (underneath "Dashboard" and "Logging"). This page should list the dev index, including when it was last updated ("lastModified") and the number of records in the index ("numDocs").

If the dev index is not listed, follow the instructions above to create it, then try reloading the admin page to confirm it was created as expected.

Contributed by @becw