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This is an automated cherry-pick of #22267

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qiancai and others added 8 commits January 14, 2026 10:28
Synced from: pingcap/docs-cn#21206
Target PR: pingcap#22267
AI Provider: gemini

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
@ti-chi-bot ti-chi-bot added lgtm needs-1-more-lgtm Indicates a PR needs 1 more LGTM. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. type/cherry-pick-for-release-8.5 This PR is cherry-picked to release-8.5 from a source PR. v9.0-beta.3 This PR/issue applies to TiDB v9.0-beta.3. labels Jan 14, 2026
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Summary of Changes

Hello @ti-chi-bot, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the backup and restore functionality (BR) by integrating a new, more secure authentication mechanism for Azure Blob Storage. It allows TiDB clusters running in Azure environments to leverage managed identities, simplifying credential management and improving the security posture for data backup operations without the need for manual credential handling.

Highlights

  • New Azure Authentication Method: Introduced support for Azure managed identities as a new authentication method for BR (Backup & Restore) operations to Azure Blob Storage, enhancing security and simplifying credential management.
  • System-assigned Identity Support: Provided clear guidance for utilizing system-assigned managed identities, noting that no additional environment variable configuration is required, provided other Azure authentication variables are not set.
  • User-assigned Identity Support: Detailed the necessary steps for configuring user-assigned managed identities, including setting the AZURE_CLIENT_ID environment variable for both TiKV and BR components.
  • Version Availability: Specified that this new authentication feature is available for TiDB versions 8.5.5 and 9.0.0 onwards.

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Code Review

This pull request adds documentation for a new Azure authentication method using managed identities. The changes are clear and well-structured. I've provided a couple of minor suggestions to improve sentence flow and clarity, in line with the documentation style guide.

@qiancai qiancai changed the title br: add a new authentication method for Azure (#22267) v8.5.5 br: add a new authentication method for Azure (#22267) Jan 14, 2026
@qiancai qiancai changed the base branch from release-8.5 to feature/preview-v8.5.5 January 14, 2026 10:31
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ti-chi-bot bot commented Jan 14, 2026

@RidRisR: adding LGTM is restricted to approvers and reviewers in OWNERS files.

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@qiancai qiancai changed the base branch from feature/preview-v8.5.5 to release-8.5 January 14, 2026 10:51
@qiancai qiancai changed the base branch from release-8.5 to feature/preview-v8.5.5 January 14, 2026 10:52
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qiancai commented Jan 14, 2026

/approve

@ti-chi-bot ti-chi-bot bot added the approved label Jan 14, 2026
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qiancai commented Jan 14, 2026

/approve

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ti-chi-bot bot commented Jan 14, 2026

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qiancai

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@qiancai qiancai merged commit b5b1386 into pingcap:feature/preview-v8.5.5 Jan 14, 2026
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3 participants