App is unable to connect to MongoDB database when added as a trusted source.

I have an App and a MongoDB database both hosted by DigitalOcean. When I add the app as a trusted source (tripled checked the name) my web app is unable to connect to the database. When I remove the app as a trusted source and allow the database cluster to be open all incoming connections then the app is finally able to connect.

I don’t understand why this would be? Is it because the component (web service) within my App is accessing the database and that hasn’t been whitelisted yet? If so, how would i whitelist it?

This just doesn’t really make any sense to me. Why would the IP whitelisting not work for just this web app but work fine for other droplets? I don’t see what I am doing wrong.

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Bobby Iliev
Site Moderator
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June 11, 2022
Accepted Answer

Hey @tompeters,

Connecting to a database during the build phase is not supported in App Platform, and so this limitation also applies to trusted sources:

I’ve just tested this during the deploy/run stage and it seems to work as expected once the App is added to the Trusted sources list.

Are you still seeing that problem? If so, please reach out to our amazing support team who will be more than happy to assist you with your issue! :)

Hope that helps!

- Bobby.

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