feat(policy): create MADR for LB policy

[lobkovilya]

Rendered

Changelog: feat(policies): implement MeshLoadBalancingStrategy

Checklist prior to review

• Link to relevant issue as well as docs and UI issues -- Fix MeshHTTPRoute loadBalancing and localityAware configuration #5869
• This will not break child repos: it doesn't hardcode values (.e.g "kumahq" as a image registry) and it will work on Windows, system specific functions like syscall.Mkfifo have equivalent implementation on the other OS --
• Tests (Unit test, E2E tests, manual test on universal and k8s) --
• Do you need to update UPGRADE.md? --
• Does it need to be backported according to the backporting policy? --
• Do you need to explicitly set a > Changelog: entry here or add a ci/ label to run fewer/more tests?

[michaelbeaumont]

LGTM. As far as the implementation goes, would we need to/should we handle these MeshLoadBalancing resource inside the MeshHTTPRoute plugin?

[lobkovilya]

As far as the implementation goes, would we need to/should we handle these MeshLoadBalancing resource inside the MeshHTTPRoute plugin?

I think no, we don't have to depend on MeshLoadBalancing inside MeshHTTPRoute plugin. MeshLoadBalancing plugin should run after the MeshHTTPRoute plugin, it needs to find already created Clusters and Routes in ResourceSet.

[lahabana]

Approved :)