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Merge pull request #2398 from DanielG/b2-hide-file

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b2: Fallback to b2_hide_file when delete returns unauthorized
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Michael Eischer
2022-12-13 22:52:23 +01:00
committed by GitHub
parent 1c071a462e 1ccab95bc4
commit 1bfe98bdc0
2 changed files with 43 additions and 4 deletions
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Enhancement: Support B2 API keys restricted to hiding but not deleting files
When the B2 backend does not have the necessary permissions to permanently
delete files, it now automatically falls back to hiding files. This allows
using restic with an application key which is not allowed to delete files.
This prevents an attacker to delete backups with the API key used by restic.
To use this feature create an application key without the deleteFiles
capability. It is recommended to restrict the key to just one bucket.
For example using the b2 command line tool:
b2 create-key --bucket <bucketName> <keyName> listBuckets,readFiles,writeFiles,listFiles
Alternatively, you can use the S3 backend to access B2, as described
in the documentation. In this mode, files are also only hidden instead
of being deleted permanently.
https://github.com/restic/restic/issues/2134
https://github.com/restic/restic/pull/2398