Mattermost-server: Cannot access S3 due to problems with signatureVersion

[exolab]

Summary

Cannot use an S3 bucket in eu-central-1, as this region only supports signatureVersion v4.

Steps to reproduce

1. Set up an S3 bucket in eu-central-1 (Frankfurt) and make it accessible.
2. Change configuration for files to use this bucket.
3. Upload a file.
   

   Expected behavior

File is uploaded.

Observed behavior

An error happens. Here is an excerpt from the log file:

Encountered an error writing to S3 [details: The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256.]

Possible fixes

Change signature version to v4.

[it33]

Thanks @exolab, appreciate the report,

Anyone else from the community able to repro this issue? Also, if this repros, would anyone be open to helping with a PR to address this?

[it33]

Hi @exolab we have a ticket tracking the fix for this now, to update to latest AWS drivers: https://mattermost.atlassian.net/browse/PLT-2164

Closing so we can track there.