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S3: Improve anonymous access#4908

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MichaelEischer merged 4 commits intorestic:masterfrom
MichaelEischer:improve-anonymous-s3
Jul 10, 2024
Merged

S3: Improve anonymous access#4908
MichaelEischer merged 4 commits intorestic:masterfrom
MichaelEischer:improve-anonymous-s3

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@MichaelEischer MichaelEischer commented Jul 7, 2024

What does this PR change? What problem does it solve?

Disallow S3 anonymous authentication unless explicitly requested. This prevents slowdowns as S3 IAM requests are not necessary when explicitly selecting anonymous authentication and avoids pointless reauthentication attempts.

Was the change previously discussed in an issue or on the forum?

Fixes #4707

Checklist

  • I have read the contribution guidelines.
  • I have enabled maintainer edits.
  • I have added tests for all code changes.
  • I have added documentation for relevant changes (in the manual).
  • There's a new file in changelog/unreleased/ that describes the changes for our users (see template).
  • I have run gofmt on the code in all commits.
  • All commit messages are formatted in the same style as the other commits in the repo.
  • I'm done! This pull request is ready for review.

The default client has no timeouts configured opening network
connections. Thus, if 169.254.169.254 is inaccessible, then the client
would wait for until the operating system gives up, which will take
several minutes.
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LGTM

@MichaelEischer MichaelEischer merged commit d8dbc71 into restic:master Jul 10, 2024
@MichaelEischer MichaelEischer deleted the improve-anonymous-s3 branch July 10, 2024 18:19
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Massive performance problems with an anonymous s3://... server

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