Bryan
01/31/2024, 9:49 PMMarvin
01/31/2024, 9:50 PMModuleNotFoundError
at runtime in your Prefect flow, which is often caused by a missing Python module in your execution environment. Given that you're using the ECS Push method for deployment with Docker, you might have encountered this issue because the module isn't included in your Docker image.
Here's a step-by-step approach to resolving the issue:
1. Check your Dockerfile: Ensure that all the required modules are listed in your requirements.txt
file or are being installed during the image build process.
2. Rebuild the Image: If you've updated the requirements.txt
after the initial build, you will need to rebuild the Docker image to include the updated dependencies.
3. Push the New Image: After successfully building the updated image, push it to your container registry.
4. Update your ECS Service: Make sure your ECS service is running the latest version of your Docker image.
5. Test Locally: If possible, run your Docker image locally to verify that the ModuleNotFoundError
does not occur before deploying it to ECS.
If you've followed these steps and are still experiencing issues, you might want to verify that your ECS Task Definition is pointing to the correct Docker image and that there are no discrepancies between your local testing environment and the ECS environment.
Remember, sometimes the simplest solution like ensuring a proper rebuild and deployment cycle can fix such runtime errors. If problems persist, double-checking the specific module missing and ensuring it's included in the Docker build context or accessible in the environment where your flow runs would be the next steps.