Instead of deploying the whole app, I want to deploy only one configuration under XXXX application.
If I use ./splunk reload deploy-server
, it will deploy the whole XXXX application, I only want to deploy inputs.conf file of XXXX application.
You cannot distribute a single file from an app. You will need to create a new app that only contains the inputs.conf you want to deploy. This is because Splunk distributes a bundle, it packages the whole app folder structure.