Hello community,
i have currently the issue, that the backup to s3 fails with a signature mismatch.
The error itself is thrown from the S3 provider (Scaleway).
Steps, that is tried to mitigate this issue:
- Re-added the credentials for S3 along with a different bucket → Same result
- Updated duplicity to latest version from duplicity ppa (
duplicity 3.0.3.2 November 25, 2024) - Ran the backup directly via
mailinabox/management/backup.py --full→ Same result
Error log from the backup status (sanitized for privacy)
Attempt of put Nr. 1 failed. S3UploadFailedError: Failed to upload /tmp/duplicity-t0s9y2bu-tempdir/mktemp-erbe5bku-83 to <s3-bucket-with-subfolder>/duplicity-inc.20250117T025009Z.to.20250118T005208Z.vol1.difftar.gpg: An error occurred (SignatureDoesNotMatch) when calling the PutObject operation: The request signature we calculated does not match the signature you provided. Check your key and signing method.
Attempt of put Nr. 2 failed. S3UploadFailedError: Failed to upload /tmp/duplicity-t0s9y2bu-tempdir/mktemp-erbe5bku-83 to <s3-bucket-with-subfolder>/duplicity-inc.20250117T025009Z.to.20250118T005208Z.vol1.difftar.gpg: An error occurred (SignatureDoesNotMatch) when calling the PutObject operation: The request signature we calculated does not match the signature you provided. Check your key and signing method.
Attempt of put Nr. 3 failed. S3UploadFailedError: Failed to upload /tmp/duplicity-t0s9y2bu-tempdir/mktemp-erbe5bku-83 to <s3-bucket-with-subfolder>/duplicity-inc.20250117T025009Z.to.20250118T005208Z.vol1.difftar.gpg: An error occurred (SignatureDoesNotMatch) when calling the PutObject operation: The request signature we calculated does not match the signature you provided. Check your key and signing method.
Attempt of put Nr. 4 failed. S3UploadFailedError: Failed to upload /tmp/duplicity-t0s9y2bu-tempdir/mktemp-erbe5bku-83 to <s3-bucket-with-subfolder>/duplicity-inc.20250117T025009Z.to.20250118T005208Z.vol1.difftar.gpg: An error occurred (SignatureDoesNotMatch) when calling the PutObject operation: The request signature we calculated does not match the signature you provided. Check your key and signing method.
Giving up after 5 attempts. S3UploadFailedError: Failed to upload /tmp/duplicity-t0s9y2bu-tempdir/mktemp-erbe5bku-83 to <s3-bucket-with-subfolder>/duplicity-inc.20250117T025009Z.to.20250118T005208Z.vol1.difftar.gpg: An error occurred (SignatureDoesNotMatch) when calling the PutObject operation: The request signature we calculated does not match the signature you provided. Check your key and signing method.
Traceback (most recent call last):
File "/root/mailinabox/management/backup.py", line 655, in <module>
perform_backup(full_backup)
File "/root/mailinabox/management/backup.py", line 322, in perform_backup
shell('check_call', [
File "/root/mailinabox/management/utils.py", line 127, in shell
ret = getattr(subprocess, method)(cmd_args, **kwargs)
File "/usr/lib/python3.10/subprocess.py", line 369, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/usr/bin/duplicity', 'incr', '--verbosity', 'warning', '--no-print-statistics', '--archive-dir', '/opt/mail/backup/cache', '--exclude', '/opt/mail/backup', '--exclude', '/opt/mail/owncloud-backup', '--volsize', '250', '--gpg-options', "'--cipher-algo=AES256'", '--allow-source-mismatch', '--s3-endpoint-url', 'https://s3.nl-ams.scw.cloud', '--s3-region-name', 'nl-ams', '/opt/mail', 's3://<s3-bucket-with-subfolder>']' returned non-zero exit status 50.
Does anyone have the same issue and provide some hint on how to fix this?
Thanks in advance!
Best regards
mgr