Powershell Compress-Archive not publishing Node.js AWS lambda layer correctly

Question

I work at a company that deploys Node.js and C# AWS lambda functions. I work on a windows machine. Our azure pipeline build environment is also windows environment.

I wrote a powershell script that packages lambda functions and layers as zip files and publishes them to AWS. My issue is deploying node.js lambda layers.

When I use Compress-Archive powershell command to zip the layer files it is preserving the windows \ in file paths. When this gets unzipped in AWS it is expecting / in file paths. So the file structure is incorrect for a node.js runtime and my lambda function that uses layer cannot find needed modules.

One way I made this work from my local machine is to install 7zip utility to zip the files. It seems it zips the files with / file paths and this works correctly when unzipped for lambda layer using node.js runtime. But when I use this powershell script in azure pipeline I cannot install 7zip utility on the build server.

Is there a way to zip files with / in file paths instead of \ that does not require to use a third party utility?

Answer 1

Compress-Archive doesn't keep folder structure and more details and workarounds you can find here . But apart from that you can use Archive Files task (link here ), or install 7zip using chocolatey choco install 7zip.install -y .