Describe the bug

Since upgrade to 2.77.0 az functionapp deployment source config-zip -g $AZURE_RESOURCE_GROUP -n $AZURE_APP_NAME --src "./build/app.zip" command creates file containing the value of --src parameter instead of content of that file.

I confirmed that downgrading docker image to 2.76.0 solves this issue.

Related command

az functionapp deployment source config-zip

Errors

No errors

Issue script & Debug output

Command runs successfully, the value of --src parameter is not mentioned in debug output.

DEBUG: urllib3.connectionpool: [https://xxx.blob.core.windows.net:443](https://xxx.blob.core.windows.net/) "GET /function-releases?restype=container HTTP/1.1" 200 0

DEBUG: urllib3.connectionpool: [https://xxx.blob.core.windows.net:443](https://xxx.blob.core.windows.net/) "PUT /function-releases/20250902112340-725d671b-4e31-4d90-8153-b84bf3e26f6f.zip HTTP/1.1" 201 0

Expected behavior

Zip file is uploaded to storage account.

Environment Summary

azure-cli 2.77.0
core 2.77.0
telemetry 1.1.0
Dependencies:
msal 1.34.0b1
azure-mgmt-resource 23.3.0

Additional context

No response