Upgrading

Vufind

For general documentation on how to upgrade Vufind, see the official documentation. This documentation will focus on how to upgrade specific to this environment setup.

Clone the vufind repository locally as well as this repository and check out the Vufind repository to the release tag that your environment is currently on.
Run the upgrade-helper.sh script to determine what config files in the local directory need to be updated with changes made to core files and apply them manually to the catalog repository in the /vufind/local directory. An example of running the command might be: ./upgrade-helper.sh -r v8.1 -p /tmp/vufind/.
Update the CI/CD Config to update the VUFIND_VERSION variable to be the new release you are updating to.
If updating SimpleSAMLphp, also update SIMPLESAMLPHP_VERSION in the same file.
Create a new branch with these changes named either review- or devel- to trigger a pipeline with a new environment.
Once the pipeline completes successfully, verify that the site loads and works correctly.
In order to test that a database migration will work correctly, take a fresh database dump of an environment at the older version and load it into the new release environment. Now connect to the catalog container and modify the config.ini file to set the autoConfigure value to true temporarily. This will enable the [URL]/Upgrade/Home url to be accessible to run the database migration manually. It will likely prompt for the database credentials, which can be found in the docker-compose.mariadb-cloud.yml file within the environment variables. Remember to disable the autoConfigure once complete. Then ensure that everything still works post-upgrade and that data is preserved.
Once thurough testing is complete, take a backup of the database on main, merge the branch into main, then repeat the database migration steps once the pipeline completes.
It is recommended to do a reindex of Solr to apply the latest schema changes, if the helper script detected any. In order to do this, you will need to run the pc-import-folio script copying back the last full harvest and doing only an import:
```
mv /usr/local/vufind/local/harvest/folio/processed/* /usr/local/vufind/local/harvest/folio/
./pc-import-folio -b
```

Solr

If it is just the Solr version that is being upgraded, then updates to the Docker image will handle the update. But if the schema or solr config are being updated you'll likely need to follow these steps. Potentially all you may need is to upload the new configs , but there is the chance then when you attempt to index new items into Solr it will not want to overwrite the existing index. In that case you will need to need to start with an empty index. You can either clear out your current index (using the --reset-solr flag in the pc-import-folio script), but this will result in downtime for your site where there will be no results returned for a period of time, or follow the below steps to build a temporary alternate collection to index in and then swap over to once it has completed. All of these commands should be run from within the Solr containers of the stack you are wanting to upgrade the Solr schema/config on.

Get the latest config files from GitHub for the version tag you are upgrading to and wget them on the solr container to a temp directory. For example:

mkdir /tmp/biblio9
cd /tmp/biblio9
cp -r /solr_confs/biblio/conf/* /tmp/biblio9/
rm /tmp/biblio9/s*.xml
wget https://raw.githubusercontent.com/vufind-org/vufind/v9.0.2/solr/vufind/biblio/conf/solrconfig.xml
wget https://raw.githubusercontent.com/vufind-org/vufind/v9.0.2/solr/vufind/biblio/conf/schema.xml

Update the location the index data will save to in the solrconfig.xml:
```
<dataDir>${solr.solr.home:./solr}/biblio</dataDir>
```

Upload the config to the Zookeepers:

solr zk upconfig -confname biblio9 -confdir /tmp/biblio9 -z $SOLR_ZK_HOSTS/solr

Create the new collection:

curl "http://solr:8983/solr/admin/collections?action=CREATE&name=biblio9&numShards=1&replicationFactor=3&wt=xml&collection.configName=biblio9"

Update the location in the local import.properties as well on the catalog_cron container, modifying the local/import/import.properties file replacing the biblio collection references to the new collection (i.e. biblio9 for example). The references should be in the solr.core.name and the solr.hosturl.
Index data into the new collection from the cron container where you modified the import.properties file in the previous step. Be sure to prepare the data you wish to import as descirbed in the full import documentaion.
```
/usr/local/bin/pc-import-folio --verbose --collection biblio9 --batch-import
/usr/local/bin/pc-import-hlm -i
```
You can optionally re-run the reserves cron at this time too in order to get that up to date with the current set of instance IDs, otherwise it may potentially be out of sync until the nightly run and some course reserve search results may have inconsistant counts.
Then verify the index in Solr and in VuFind by manually updating the config.ini to point to the new collection name temporarily. Once satisfied with the output, move on to the next step.

Once you are confident in the new index, remove the original index:

curl "http://solr:8983/solr/admin/collections?action=DELETE&name=biblio"

Create a new alias with the name biblio pointing to the new collection which will direct all queries to the new collection instead of the original one:
```
curl "http://solr:8983/solr/admin/collections?action=CREATEALIAS&name=biblio&collections=biblio9"
```