Re: [I] elegant way to enable cross origin resource sharing? [solr-operator]

["ibraheemalayan (via GitHub)" <gi...@apache.org>]

ibraheemalayan commented on issue #513:
URL: https://github.com/apache/solr-operator/issues/513#issuecomment-2676883924

   For anyone interested in a guide.
   
   1. Create a custom `web.xml`
   
       - Get the default web.xml from solr's repository or from your container at `/opt/solr-9.7.0/server/solr-webapp/webapp/WEB-INF/web.xml` ( make sure to put the correct version )
       - follow https://laurenthinoul.com/how-to-enable-cors-in-solr/ to do the required changes
    
   2. Create a ConfigMap that contains the new web.xml file. You can do this by running the following command:
   
   ```bash
   kubectl create configmap custom-web-xml --from-file=web.xml={{path/to/your/web.xml on machine running kubectl}}
   ```
   
   3. Attach a volume to solr containers
   
   In SolrCloud resource file, create a new volume under `SolrCloud.spec.customSolrKubeOptions.podOptions.volumes` as follows:
   
   ```yaml
   # specs: https://apache.github.io/solr-operator/docs/solr-cloud/solr-cloud-crd.html
   apiVersion: solr.apache.org/v1beta1
   kind: SolrCloud
   metadata:
     name: search-cluster
   spec:
     # <new config>
     customSolrKubeOptions:
       podOptions:
         # override /opt/solr-9.7.0/server/solr-webapp/webapp/WEB-INF/web.xml with custom web.xml to enable CORS
         volumes:
           - name: custom-web-xml-volume
             source:
               configMap:
                 name: custom-web-xml
                 items:
                   - key: web.xml
                     path: web.xml
             defaultContainerMount:
               name: custom-web-xml-volume
               mountPath: /opt/solr-9.7.0/server/solr-webapp/webapp/WEB-INF/web.xml # ! match solr version
               subPath: web.xml
               readOnly: true
     # </new config>
     # rest of the file ....
     replicas: 2
     solrJavaMem: -Xms512M -Xmx1G
     solrImage:
       tag: 9.7.0
   ```
   
   4. Apply changes
   5. Verify
   
   get one of your pods' names, and verify that it has the new xml file:
   ```bash
   kubectl exec -it <solr-pod-name> -- cat /opt/solr-9.7.0/server/solr-webapp/webapp/WEB-INF/web.xml
   ```
   
   


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