Add export backup guide for S3 and GCS.

[ginkgoch]

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• I've signed the Contributor License Agreement, which is required for the repository owners to accept my contribution.

What is changed, added or deleted? (Required)

• Add export backup guide for AWS S3
• Add export backup guide for Google Cloud Storage

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[ti-chi-bot]

Hi @ginkgoch. Thanks for your PR.

I'm waiting for a pingcap member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[gemini-code-assist]

Summary of Changes

Hello @ginkgoch, 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 TiDB Cloud documentation by providing new guides for exporting database backups to external cloud storage solutions. It specifically adds detailed, step-by-step instructions for users to export their backups to both AWS S3 and Google Cloud Storage, ensuring greater flexibility and control over backup management.

Highlights

• AWS S3 Backup Export Guide: Added comprehensive documentation detailing the steps to export TiDB Cloud backups to Amazon S3, including instructions for configuring necessary permissions via AWS CLI or AWS Console.
• Google Cloud Storage Backup Export Guide: Introduced a new guide outlining the process for exporting TiDB Cloud backups to Google Cloud Storage (GCS), covering service account ID usage, required permissions, and configuring the export path.

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[gemini-code-assist]

Code Review

This pull request adds documentation for exporting backups to AWS S3 and Google Cloud Storage. The changes are clear and well-structured. I've provided a few suggestions to improve clarity, conciseness, and adherence to the style guide. These include making some phrases more specific, removing a redundant sentence, and making instructions more actionable for the user.

[Kensleycc]

LGTM

[ti-chi-bot]

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

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In response to this:

LGTM

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[Oreoxmt]

/cc @Oreoxmt

[hfxsd]

/ok-to-test

[Oreoxmt]

Rest LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-01-09 03:54:56.653165508 +0000 UTC m=+933652.471473940: ☑️ agreed by Oreoxmt.
• 2026-01-12 01:26:19.39398311 +0000 UTC m=+234423.455848018: ☑️ agreed by hfxsd.

[hfxsd]

/approve

[hfxsd]

/retest

[hfxsd]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hfxsd

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[ti-chi-bot]

@ginkgoch: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-verify	730f27b	link	true	/test pull-verify

Full PR test history. Your PR dashboard.

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