Hey all I would like to deploy an AWS lambda from a python f Pulumi Community #aws

Hey all, I would like to deploy an AWS lambda from...

plain-lunch-16168

03/10/2025, 5:32 PM

Hey all, I would like to deploy an AWS lambda from a python file directly, instead of ZIP or docker container, if possible. Therefore, with

Pulumi AI

I implemented the following code, that successfully runs with

pulumi up

. However, in the AWS lambda console, the python file does not actually show up in the Editor. Instead, I get the following error:

Copy code

Runtime.ImportModuleError: Unable to import module 'bid_archiver': No module named 'bid_archiver'

What do I miss?

Untitled

little-cartoon-10569

03/10/2025, 8:13 PM

I believe that the AssetArchive should contain a FileArchive (not a file asset), and it should point to the directory containing the source, not to the python file itself.

plain-lunch-16168

03/10/2025, 8:43 PM

Do you know whether a single python file is possible? I think when I tried it with the FileArchive, I got an error message that it was expecting a zip instead of .py

little-cartoon-10569

03/10/2025, 8:50 PM

Put the .py file into a subdir, create a FileArchive pointing at that directory, and name the asset "." inside the AssetArchive.

little-cartoon-10569

03/10/2025, 8:51 PM

https://github.com/pulumi/examples/blob/a53084d62fa63f14c4dfd9d454727f7d6b6c4cf7/aws-py-slackbot/__main__.py#L64

little-cartoon-10569

03/10/2025, 8:53 PM

In that example, they don't even put the lambda code into a subdirectory, they just put the current directory in there. Which is slightly wasteful as then you're uploading non-lambda code, but it's just an example, so that's fine. I wouldn't do that normally, especially since you want the lambda zip to change only when the lambda code changes; in that example, the zip will change even when the README.md changes 🙂

little-cartoon-10569

03/10/2025, 8:53 PM

BTW AWS requires that the code property point to a zip file. That's not a Pulumi constraint, that's how AWS' API works.

plain-lunch-16168

03/10/2025, 9:09 PM

Thanks for the detailed answer!

plain-lunch-16168

03/10/2025, 9:11 PM

Yes, I understand that AWS requires ZIP or docker, but I thought pulumi may do some magic to convert the directory into a zip file

plain-lunch-16168

03/10/2025, 9:20 PM

Ah, given the example I understand that pulumi does generate the zip based on the folder provided

plain-lunch-16168

03/10/2025, 9:24 PM

Thanks a lot for the support, @little-cartoon-10569!

plain-lunch-16168

03/10/2025, 9:24 PM

It now worked, just need to debug the actual python code now

5 Views

Open in Slack

Previous Next