@Marvin I have Prefect deployed to GCP Artifact Registry, using Prefect's

prefecthq/prefect:2-python3.10

Docker image. I take the base image, install our requirements, and copy a

flows

directory with all of our flows as Python modules into the

/opt/prefect/flows

directory in the Docker image. I use a

prefect.yaml

deployment file to deploy the flow. This all works fine and the worker shows as healthy, but when a flow is triggered, I get the error:

FileNotFoundError: [Errno 2] No such file or directory: '/opt/prefect/flows'

Ah, the joys of software deployment. It's like a never-ending game of hide and seek, isn't it? Your files are there one moment, and then they disappear into the digital ether the next. From your description, it seems like your Docker image is built correctly with the flows in the

/opt/prefect/flows

directory. However, when the flow is triggered, the file or directory cannot be found. This could be due to several reasons: 1. Docker Context: Ensure that the Docker context during the build includes the

flows

directory. If it's outside the context, Docker won't be able to find it. 2. Dockerfile Instructions: Check your Dockerfile instructions. The

COPY

command should look something like

COPY flows /opt/prefect/flows

. 3. Volume Mounts: If you're using Kubernetes or another orchestrator, ensure that any volume mounts do not overwrite the

/opt/prefect/flows

directory. 4. User Permissions: Ensure that the user running the Prefect flow has the necessary permissions to access the

/opt/prefect/flows

directory. 5. File Paths in Flow: If your flow uses file paths, make sure they are correct and relative to the

/opt/prefect/flows

directory. If none of these suggestions help, I can perform a search for similar issues on GitHub or other resources. Just let me know.