docs: update CLI docs for refactored object storage config

[Copilot]

Overview

This PR updates the documentation for the metadata snapshot CLI commands to reflect the refactored object storage configuration introduced in GreptimeTeam/greptimedb#7009.

What Changed

The CLI object storage configuration has been refactored to use unified, provider-prefixed flags instead of generic flags. This documentation update reflects those changes in the nightly docs for both English and Chinese versions.

Updated Flags

Before:

greptime cli meta snapshot save \
  --s3 \
  --s3-bucket my-bucket \
  --s3-access-key <key> \
  --s3-secret-key <secret> \
  --output-dir /path/to/export

After:

greptime cli meta snapshot save \
  --enable-s3 \
  --s3-bucket my-bucket \
  --s3-access-key-id <key-id> \
  --s3-secret-access-key <secret> \
  --dir /path/to/export

Documentation Updates

1. Reorganized options structure with clear sections for:

   • Storage Backend Options (etcd, PostgreSQL, MySQL)
   • File Options (local file system)
   • Object Storage Options (cloud providers)

2. Added provider-prefixed flags for all supported cloud storage providers:

   • S3: --enable-s3, --s3-bucket, --s3-root, --s3-access-key-id, --s3-secret-access-key, --s3-region, --s3-endpoint, --s3-enable-virtual-host-style
   • OSS: --enable-oss, --oss-bucket, --oss-root, --oss-access-key-id, --oss-access-key-secret, --oss-endpoint
   • GCS: --enable-gcs, --gcs-bucket, --gcs-root, --gcs-scope, --gcs-credential-path, --gcs-credential, --gcs-endpoint
   • Azure Blob: --enable-azblob, --azblob-container, --azblob-root, --azblob-account-name, --azblob-account-key, --azblob-endpoint, --azblob-sas-token

3. Updated flag names to match the new implementation:

   • --output-dir → --dir (for export)
   • --input-dir → --dir (for import/info)
   • --s3-access-key → --s3-access-key-id
   • --s3-secret-key → --s3-secret-access-key

4. Added missing documentation for the info subcommand that allows viewing metadata snapshot contents without restoring

Scope

• ✅ Only nightly documentation (docs/ directory and i18n/zh current) was modified
• ✅ No changes to stable version documentation (versioned_docs/)
• ✅ Applied to:
  • docs/reference/command-lines/utilities/metadata.md (English)
  • i18n/zh/docusaurus-plugin-content-docs/current/reference/command-lines/utilities/metadata.md (Chinese)

Related

• Upstream PR: refactor(cli): refactor object storage config greptimedb#7009

[!WARNING]

Original prompt

---

This section details on the original issue you should resolve

<filter_complete></filter_complete>

<issue_title>Update docs for refactor(cli): refactor object storage config</issue_title>
<issue_description>A document change request is generated from GreptimeTeam/greptimedb#7009</issue_description>

<agent_instructions>只需要修改 nightly 的内容，请注意写一下 Prompt 不要修改最新稳定版的文档。</agent_instructions>

Comments on the Issue (you are @copilot in this section)

Fixes #2142

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Update docs for refactor(cli): refactor object storage config</issue_title>
<issue_description>A document change request is generated from GreptimeTeam/greptimedb#7009</issue_description>

<agent_instructions>只需要修改 nightly 的内容，请注意写一下 Prompt 不要修改最新稳定版的文档。</agent_instructions>

Comments on the Issue (you are @copilot in this section)

Fixes #2142

---

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[WenyXu]

@copilot Don’t forget to update the Chinese document as well

[Copilot]

@copilot Don’t forget to update the Chinese document as well

Done! I've updated the Chinese documentation in commit 6c9e4fa. The changes mirror the English version, including:

• New provider-prefixed flags (--enable-s3, --s3-access-key-id, etc.)
• Documentation for all object storage providers (S3, OSS, GCS, Azure Blob)
• Updated flag names (--dir instead of --output-dir/--input-dir)
• Added info command documentation