Why is my AWS App Runner application not deploying?

Question

I'm trying to deploy an application with AWS App Runner and initially had a successful deploy. However, as I make changes to the app, then push to GitHub, the application deployment begins, runs for about 20 minutes then fails.

Here are the last few lines from the deploy log:

[Build] Successfully built 96fba6016991
[Build] Successfully tagged application-image:latest
[AppRunner] Failed to deploy your application source code.

Then the application rolls back. I cannot locate any other logs with any additional information.

Where can I find more descriptive logs? Why is my application not deploying?

Answer 1

I solved this problem by looking into other places with logging. The initial message was in the "deployment journal", but there was more details if opened in "cloudwatch". I also went in the "application journal" part. Clicked on "Application logs" in this section to be able to see the actual error message causing the issue.