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<@ULVA73B9P> I followed the steps in ECS Worker Gu...
# ask-marvin
v
@Marvin I followed the steps in ECS Worker Guide, in prefect cloud im getting this error FileNotFoundError: [Errno 2] No such file or directory: '/opt/prefect/my_flow.py'
m
The error you're encountering, 
FileNotFoundError: [Errno 2] No such file or directory: '/opt/prefect/my_flow.py'
, suggests that the specified file path does not exist on the ECS task container where your flow is being executed. Here are a few steps to troubleshoot and resolve this issue: 1. Ensure Correct Path: Double-check the path 
/opt/prefect/my_flow.py
in your ECS task definition or Dockerfile. Make sure the file is actually located at this path within the container. 2. Dockerfile Configuration: If you're using a Dockerfile, ensure that the 
COPY
or 
ADD
command includes your flow script and places it in the correct directory inside the Docker image. 3. Entrypoint Configuration: Verify the entrypoint configuration in your Prefect deployment. The entrypoint should match the path and filename of your flow script. An example configuration might look like 
entrypoint="flows.py:my_flow"
. 4. ECS Task Definition: Ensure that your ECS task definition is set up correctly. The task definition should mount any necessary volumes and set environment variables that your flow might depend on. 5. Prefect Deployment: When deploying your flow, ensure that the deployment script points to the correct source and entrypoint. You can refer to the Prefect ECS Guide for more detailed instructions. By following these steps, you should be able to resolve the file not found error. If you continue to face issues, you might want to review your ECS and Docker configurations more thoroughly.
a
Did you find a solution ? I might have an idea on this
v
this is my prefect.yml
Copy code
# push section allows you to manage if and how this project is uploaded to remote locations
push:
- prefect_docker.deployments.steps.push_docker_image:
    requires: prefect-docker>=0.3.1
    image_name: '{{ build_image.image_name }}'
    tag: '{{ build_image.tag }}'

 # the deployments section allows you to provide configuration for deploying flows
deployments:
- name: my_ecs_deployment
  version:
  tags: []
  description:
  entrypoint: my_flow.py:my_flow
  parameters: {}
  work_pool:
    name: ECS Pool
    image: '{{ build_image.image }}'
    work_queue_name:
    job_variables: {}
  schedules: []
  concurrency_limit:
pull:
  - prefect.deployments.steps.set_working_directory:
      directory: /opt/prefect
@Ateeb Rizwan hi, no im stuck with this error
a
You can try adding a directory by the name temp_files in your flows directory then deploy
or if you could provide the whole log I can have a better idea on it
v
oh yeah sure
Copy code
Unexpected exception encountered when trying to load flow
Traceback (most recent call last):
  File "<frozen importlib._bootstrap_external>", line 995, in exec_module
  File "<frozen importlib._bootstrap_external>", line 1132, in get_code
  File "<frozen importlib._bootstrap_external>", line 1190, in get_data
FileNotFoundError: [Errno 2] No such file or directory: '/opt/prefect/my_flow.py'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/prefect/engine.py", line 112, in <module>
    flow: "Flow[..., Any]" = load_flow(flow_run)
                             ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/flow_engine.py", line 140, in load_flow
    flow = run_coro_as_sync(
           ^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/utilities/asyncutils.py", line 207, in run_coro_as_sync
    return call.result()
           ^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/_internal/concurrency/calls.py", line 329, in result
    return self.future.result(timeout=timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/_internal/concurrency/calls.py", line 192, in result
    return self.__get_result()
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/concurrent/futures/_base.py", line 401, in __get_result
    raise self._exception
  File "/usr/local/lib/python3.12/site-packages/prefect/_internal/concurrency/calls.py", line 402, in _run_async
    result = await coro
             ^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/utilities/asyncutils.py", line 188, in coroutine_wrapper
    return await task
           ^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/client/utilities.py", line 69, in wrapper
    return await func(client, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/flows.py", line 2380, in load_flow_from_flow_run
    flow = await run_sync_in_worker_thread(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/utilities/asyncutils.py", line 233, in run_sync_in_worker_thread
    result = await anyio.to_thread.run_sync(
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/anyio/to_thread.py", line 56, in run_sync
    return await get_async_backend().run_sync_in_worker_thread(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 2461, in run_sync_in_worker_thread
    return await future
           ^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 962, in run
    result = context.run(func, *args)
             ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/utilities/asyncutils.py", line 243, in call_with_mark
    return call()
           ^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/flows.py", line 2059, in load_flow_from_entrypoint
    flow: Flow[P, Any] = import_object(entrypoint)  # pyright: ignore[reportRedeclaration]
                         ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/utilities/importtools.py", line 156, in import_object
    module = load_script_as_module(script_path)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/prefect/utilities/importtools.py", line 121, in load_script_as_module
    raise ScriptError(user_exc=exc, path=path) from exc
prefect.exceptions.ScriptError: Script at 'my_flow.py' encountered an exception: FileNotFoundError(2, 'No such file or directory')
To add more context, im running prefect cloud and ecs workers In the pool config i added the cluster name and container
y run this command in my wsl using venv 
prefect deploy my_flow.py:my_flow
a
How do you input the file ?
v
well i create a .py in my local with a demo flow an then create the prefect.yaml following this guide https://docs.prefect.io/integrations/prefect-aws/ecs_guide but not working
a
Okay, this is something new but my best guess is something is wrong with some path you may have defined in the code
Are you using a mac or a windows ?
v
im using wsl
a
Okay
v
usinng ubuntu22.04
a
Could you share the directory of your project
v
image.png
a
sorry I meant the directory structure
v
im only have this two files
im trying to run the demo
a
Okay
do you have any prefect folder defined where you may have defined this flow ?
image.png
v
nope i dont
a
maybe you could define your flow like this as well
And then try
v
Thanks
a
Did it work ?
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