I've built a modular alert with a setup.xml to create credentials on the storage/passwords endpoint and to store a setting in local/app.conf. Everything works as expected on my standalone test system.
When I deploy it to a search head cluster (7.3.2) via the deployer, the "Set up" link doesn't show next to the app in "Manage Apps". I can navigate to the setup page manually (/en-US/manager//apps/local//setup?action=edit) and save the settings, but the local/app.conf doesn't replicate to the other members of my search head cluster. I'm thinking of testing a custom endpoint for the config piece instead of putting it into app.conf, but I don't want to go too far down this road if I'm taking the wrong approach.
Is setup.xml not supported on a search head cluster environment? How about making changes to local/app.conf? I have to assume modular alerts in general are.