Grafana Image Renderer plugin config.json - how?

My configuration:

  • Grafana v8.3.2 free version /var/lib/grafana
  • Grafana Image Renderer plugin v3.3.0 /var/lib/grafana/plugins/grafana-image-renderer
  • CentOS

I can’t set a custom config file on my system. The Image renderer plugin works. However, if I create a config.json file (and restart the Grafana service), the Image Renderer plugin will not work. It will only work again if I reinstall the plugin.

I would like to change the default language to Hungarian, because the plugin is render all numbers in not my country’s format.

I read the documentation:

I don’t understand that how could I set up the config.json if I don’t use Docker? I don’t need to start a plugin service, it runs anyway, but I can’t found the usage of the config.json.

What is the problem?