IBM APM datasource plugin installation

I am running Grafana on my local server which is not connected to internet. I wanted to install and configure IBM APM plugin developed by Rafel Szypulka. As my server is not connected to internet, I followed the manual set-up of this plugin by just extracting zip file under Grafana plugins directory as mentioned in the below link.

https://grafana.com/grafana/plugins/ibm-apm-datasource/installation

After extracting the zip file, I restarted Grafana service but still I don’t see IBM APM plugin in the DataSource configuration page. I am not sure what I did wrong or if I missed something.

Any help or suggestions in this regard is really appreciated.

-Ravi

Changing the ownership of the plugin directory helped me solve the issue.

chown -R grafana:grafana /var/lib/grafana/plugins/*