App platform and postgresql connection pool wont work

I am successfully running a python app in app platform, and it reaches the managed Postgres database just fine.

I have created a connection pool in the database to increase the connection limit, but when updating the connection parameters in the python app, I just get timeouts when trying to reach the database connection pool.

What I have tried:

  • The app is whitelisted in the trusted sources of the database
  • The connection string to the pool works fine! I have the same python app running outside Digital Ocean and works fine!
  • When I skip the connection pool and go straight to the database, everything works fine!
  • I have tried attaching the database to the App in App Platform.
  • Searched in the forum and others are having the same issue with different programming languages.

I can’t deactivate trusted sources in the database, since it is required for the project.

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Bobby Iliev
Site Moderator
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August 21, 2022
Accepted Answer

Hi there,

There has been a similar question here:

Unfortunately using Trusted Sources with App Platform and PostgreSQL connection pools is not supported, however, we are actively working to support that functionality.

As of the time being, there is a workaround mentioned in the question above that suggests creating an Internal Service that’s only accessible by the other components using a PgBouncer docker image.