feat: implement offline kubernetes controller

[shawnh2]

What type of PR is this?

What this PR does / why we need it:

impl offline controller detailed in #3213 (comment) and let file-provider to be able to utilise offline controller.

Which issue(s) this PR fixes:

fix #3213

Release Notes: Yes

[codecov]

Codecov Report

Attention: Patch coverage is 66.81716% with 147 lines in your changes missing coverage. Please review.

Project coverage is 65.40%. Comparing base (6b772d7) to head (6c46dd9).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/provider/file/store.go	45.83%	76 Missing and 28 partials ⚠️
internal/provider/kubernetes/controller_offline.go	81.01%	13 Missing and 2 partials ⚠️
internal/provider/file/status.go	77.77%	9 Missing and 3 partials ⚠️
internal/provider/file/file.go	80.48%	5 Missing and 3 partials ⚠️
internal/provider/kubernetes/indexers.go	93.05%	0 Missing and 5 partials ⚠️
internal/provider/runner/runner.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5767      +/-   ##
==========================================
+ Coverage   65.29%   65.40%   +0.11%     
==========================================
  Files         216      217       +1     
  Lines       35907    36061     +154     
==========================================
+ Hits        23445    23586     +141     
+ Misses      11007    10999       -8     
- Partials     1455     1476      +21     

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[zhaohuabing]

Hi @shawnh2 this PR adds the "offline controller," but it doesn’t include an example of how to actually use it. Since it's just a small change, could we also include the file provider modification as part of this PR to verify it works?

Thanks!

[shawnh2]

Hi @shawnh2 this PR adds the "offline controller," but it doesn’t include an example of how to actually use it. Since it's just a small change, could we also include the file provider modification as part of this PR to verify it works?

Thanks!

sure, I was intend to include file provider in next PR. I will add it then.

[shawnh2]

The status works as expected

[arkodg]

LGTM thanks

[arkodg]

@shawnh2 can you rebase ?

[zhaohuabing]

LGTM thanks!