support a scheme for multi-region lb service

River-sh commented 5 months ago

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line: /kind design

What this PR does / why we need it:

Provide a multi-regional load balancer architecture design

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

other Note

codecov[bot] commented 5 months ago

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 52.34%. Comparing base (c8778fc) to head (28b6884).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1958 +/- ## ========================================== - Coverage 52.41% 52.34% -0.07% ========================================== Files 173 173 Lines 21015 21015 ========================================== - Hits 11014 11000 -14 - Misses 9051 9063 +12 - Partials 950 952 +2 ``` | [Flag](https://app.codecov.io/gh/openyurtio/openyurt/pull/1958/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openyurtio) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/openyurtio/openyurt/pull/1958/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openyurtio) | `52.34% <ø> (-0.07%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=openyurtio#carryforward-flags-in-the-pull-request-comment) to find out more.

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