I am trying to make a custom Addon with a setup.xml
In the Splunk deployment that I am targeting, the management port has been changed from 8089 to 18089 (to avoid port conflicts with existing services).
After I install my app, I do see a 'Set up' action in the Apps list for my app.
But when I try to go to the Set up page by clicking on the link, I get a 404.
I've read about other addons with setup that indicated the problem may be that the management port is not 8089.
How to I configure my app to use the correct management port?