https://flyte.org logo
Join Slack
Powered by
<@U06RKAMK0UC> What would the code look like to do...
# ask-ai
s
@ancient-wolf-19325 What would the code look like to download a file from the output of a task? The following does not work as it errors with the error 
ValueError: as_type argument not supplied and Variable map not specified in LiteralsResolver
Copy code
remote = UnionRemote.for_endpoint("eidu.eu-west-1.unionai.cloud")
    response = remote.get("flyte://<path-to-flyte>/n4/o")
    print(response)
    # download file from s3
    s3 = s3fs.S3FileSystem()
    s3.download(response.get("o0"), Path("data") / "saved_model.keras")
Do I need to supply it with a type? I just want to download the file
j
Reasoning Complete! 🤖 🔍 Searched knowledge base: I want to look up the correct way to download a file from a Flyte task output, including how to handle the 'as_type' argument and resolve the output location, so I can give you a working code example and explain the error you're seeing. • Searching over 10 data sources from the following: File, Github File, Github Issue, Web • Found 52 documents that could be relevant from the following data sources: Github File, Github Issue. • Filtered down to the top 30 most relevant documents. ✍️ Generated answer: I have found the exact reason for the error and the correct way to download a file from a Flyte task output. I can now give you a working code example and explain how to fix your code.
Yes, you need to supply the expected Python type when retrieving outputs with FlyteRemote/UnionRemote, especially for files. For a file output, use 
as_type=FlyteFile
to ensure the output is returned as a FlyteFile object, which provides a 
.download()
method to fetch the file locally. Your code should look like this:
Copy code
from flytekit.remote.remote import FlyteRemote
from flytekit.types.file import FlyteFile

remote = FlyteRemote.for_endpoint("eidu.eu-west-1.unionai.cloud")
response = remote.get("flyte://<path-to-flyte>/n4/o", as_type=FlyteFile)
local_path = response["o0"].download()  # Downloads the file to a local temp path
print(f"Downloaded file to: {local_path}")
This approach avoids the error and handles the download for you. You do not need to use s3fs directly—FlyteFile manages the download from S3 or other remote storage automatically. Would you like more detail on how FlyteFile works or how to specify other types? Sources: - FlyteFile implementation - Related GitHub issue: dataclass and pydantic both failed when using Flytekit Remote API 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
s
@ancient-wolf-19325 I get a permission error, probably because I am not logged in as the flyteuser, but my main AWS account. How would I work around or fix that?
j
Reasoning Complete! 🤖 🔍 Searched knowledge base: I'll look up the recommended ways to resolve AWS permission errors when downloading files from Flyte, including how to set up the right credentials or assume the correct role. • Searching over 10 data sources from the following: File, Github File, Github Issue, Web • Found 63 documents that could be relevant from the following data sources: Github File, Github Issue, Web Content. • Filtered down to the top 30 most relevant documents. ✍️ Generated answer: I have enough information to explain why you're seeing the permission error and how to resolve it when downloading files from Flyte task outputs stored in S3.
To fix S3 permission errors when downloading Flyte outputs, ensure your AWS credentials match those used by Flyte task pods—typically, this means assuming the same IAM role (often via IRSA) that Flyte uses in your cluster. If you use your main AWS account, you may lack access to the Flyte S3 buckets. Workarounds: - Assume the Flyte worker IAM role in your local environment (using 
aws sts assume-role
or AWS SSO). - Add your AWS user to the S3 bucket policy (not recommended for production). - Download via FlyteFile’s 
.download()
method, which uses your current credentials, so you must have S3 access. Would you like more detail on configuring IAM roles or using IRSA with Flyte? Sources: - https://github.com/flyteorg/flyte/issues/2771 - https://github.com/flyteorg/flyte/issues/6438 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.
Open in Slack
PreviousNext
Powered by