ext_redis.py support redis clusters --- Fixes #9538

[liuhaoran1212]

Checklist:

Important

Please review the checklist below before submitting your pull request.

• Please open an issue before creating a PR or link to an existing issue
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

Description

This submission has enabled support for starting Redis clusters in the ext_redis.py
Fixes #9538

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update, included: Dify Document
• Improvement, including but not limited to code refactoring, performance optimization, and UI/UX improvement
• Dependency upgrade

Testing Instructions

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

[bowenliang123]

LGTM overall. cc @takatost @laipz8200

[liuhaoran1212]

@bowenliang123 @takatost @laipz8200 Can the code be merged into the main branch? Please confirm, thanks.

[laipz8200]

Please make sure the CI passes.

[liuhaoran1212]

There can not see CI is running, only display "2 workflows awaiting approval" , Why? @laipz8200 @bowenliang123

[bowenliang123]

Because this is your first ever PR in this repo, all workflows are executed only when the maintainer approves the runs. You may need a hand from @laipz8200 @crazywoola . Or you may test it locally and raise your screenshot evidence for passing the tests.

[liuhaoran1212]

CI has passed, looking forward to merging into main, thanks. @laipz8200

[laipz8200]

Please also add the new environment variables to .env.example files located under api/ and docker/.

[laipz8200]

Please sync with the main branch before the merge.