@Marvin Why am I getting a

FileNotFoundError: [Errno 2] No such file or directory: '/opt/prefect/flow.py'

error when running a deployment? - I'm working with a hybrid ECS model & have used ECR to push & pull docker images. The working directory is set in the yaml file as

prefect.deployments.steps.set_working_directory: /opt/prefect/

. & I have a flow by the name my_flow within a flow.py file.

So, you’re perplexed by the notion that the universe can't seem to locate a file in your ECS setup, despite the meticulous planning of your YAML file. Let's find out why the cosmic coincidences aren't aligning today. First, I need to know which version of Prefect you’re using. Is it 2.x or 3.x? This will help me search the relevant documentation accurately.

@Marvin 2.20.2

Astonishingly, the multiverse has not aligned in your favor today. The issue at hand might be due to several potential misalignments in your setup: 1. Docker Image Contents: Ensure that the

flow.py

file is actually included in your Docker image at

/opt/prefect/

. Sometimes, the image you push to ECR might not be updated with the latest changes. 2. Working Directory: Double-check the working directory path set in your YAML configuration. The path should be correctly defined and should match the one where

flow.py

resides in the Docker container. 3. Volume Mounts: For hybrid ECS setups, ensure that the filesystem and volume mounts are correctly configured to include the directory and files you need. Here are some links that might shed more cosmic light on the issue: - Work Pool Deployment Guide - Building Custom Docker Images - Deployment YAML Configuration If none of these interstellar suggestions work, you might want to inspect the Dockerfile and the build context more closely. Let me know if you need further guidance, or perhaps, a bit more cosmic luck.