Longtime listener, first time caller. I am trying to use the containertask with a list of flytefile like this:

calculate_ellipse_area_shell = ContainerTask(
   name="ellipse-area-metadata-shell",
   input_data_dir="/root/inputs",
   output_data_dir="/root/outputs",
   inputs=kwtypes(a=List[FlyteFile]),
   outputs=kwtypes(metadata=str),
   image="harbor.rke2/work:latest",
   command=[
       "/root/entrypoint.sh"
   ]
)

The container starts fine but can’t download the inputs and it looks like it cannot create the proper subdirectory that is named after the input variable name

time="2024-08-14T16:41:49Z" level=info msg="[0] Couldn't find a config file []. Relying on env vars and pflags."
2024-08-14T16:41:49.653575850Z {"json":{},"level":"error","msg":"Failed to persist [a], err failed to open file at path /root/inputs/a/0: open /root/inputs/a/0: no such file or directory","ts":"2024-08-14T16:41:49Z"}
{"json":{},"level":"error","msg":"Downloading failed, err failed to download input variable from remote store: variable [a] download/store failed: failed to open file at path /root/inputs/a/0: open /root/inputs/a/0: no such file or directory","ts":"2024-08-14T16:41:49Z"}

Anyone else using lists of flytefiles with the ContainerTask?

I think you're hitting a limitation of Flyte copilot and FlyteFile as an input, This is not supported at the moment for Container Task. FlyteFile supported as output but not input (recent discussion)

flytedirectory isn't supported as input, but flytefile should work. have you tried sending a single flytefile to the container? does that work?

This is a simple addition that we need to contribute

Single flyte file works wonderfully it’s the list of them that seems to cause issues. I took a Quick Look at the code and maybe it has something to do with os.Create not being able to create the subdirectory, my go abilities are extremely new.

looks like this isn't supported either. would you mind creating an issue?