[pbs-devel] [PATCH proxmox{, -backup} 0/4] s3: extend config by quirks, implement backblaze B2 specific quirk

Christian Ebner c.ebner at proxmox.com
Mon Jul 28 12:01:50 CEST 2025


These patches extend the s3 client configuration and options by the additional
`quirk` enum, allowing to switch to provider specific implementation details in
the s3 client.

As first use-case, the `If-None-Match` header is not set during put object
requests to Backblaze B2 object stores, as this fails with an error with status
code 501, therefore chunk uploads will fail.

The patches expose the quirks also in an dropdown list in the advanced column
of the s3 endpoint edit window.

proxmox:

Christian Ebner (2):
  s3 client: api types: extend client config by optional quirks
  s3 client: skip setting `If-None-Match` header for Backblaze B2

 proxmox-s3-client/examples/s3_client.rs |  1 +
 proxmox-s3-client/src/api_types.rs      | 18 +++++++++++++++++-
 proxmox-s3-client/src/client.rs         | 10 +++++++++-
 3 files changed, 27 insertions(+), 2 deletions(-)


proxmox-backup:

Christian Ebner (2):
  api: s3 config: allow to update or delete endpoint quirks
  ui: s3 endpoint: add provider specific quirk selector

 src/api2/config/s3.rs      |  8 ++++++++
 www/window/S3ClientEdit.js | 17 +++++++++++++++++
 2 files changed, 25 insertions(+)


Summary over all repositories:
  5 files changed, 52 insertions(+), 2 deletions(-)

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