AWS AppRunner Failed to deploy

Question

Hi,
We have a service that has been running on AppRunner since August, but the last successful deployment was on December 14th. Since then, we have not been able to deploy the same code base to AppRunner. It only gives the following output;

```
[AppRunner] Starting to build your application source code.
[AppRunner] Failed to deploy your application source code.
```

However, while we can deploy the same code base to AWS Amplify and Vercel, and even last week there was no problem, we could not figure out why we cannot deploy to AppRunner now. As a solution, we tried to open a new AppRunner instance and deploy it there, but we were not successful. Then we moved to a different region and tried the same thing there, but we were not successful.

I don't want to change platform because we have hundreds of subdomains connected here, is there any guidance you can give on this?

Answer

Hello.

Isn't there more detailed information in the AppRunner logs?  
I think that the log that causes this is probably output a few lines above the line that says "Failed to deploy your application source code."  
https://docs.aws.amazon.com/apprunner/latest/dg/monitor-cwl.html

Answer

I wish I could give more detailed information, but this is all I have;

![Enter image description here](/media/postImages/original/IMDYtg60fgSzWMtTKk5vykBA)

AWS AppRunner Failed to deploy

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