[Orleans] Silo Metadata and Placement Filtering

[rkargMsft]

Summary

Documentation for code changes here: https://github.com/dotnet/orleans/pull/9271

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Internal previews

📄 File	🔗 Preview link
docs/orleans/grains/grain-placement-filtering.md	Grain placement filtering
docs/orleans/host/configuration-guide/silo-metadata.md	Silo metadata
docs/orleans/toc.yml	docs/orleans/toc

[rkargMsft]

Note that https://github.com/dotnet/orleans/pull/9271 has yet to be merged or included in an Orleans release yet.

[rkargMsft]

Reviewing to see if any updates are needed from the changes in the committed PR

[rkargMsft]

@IEvangelist PR for the implementation has been merged and docs updated for changes in the PR

[IEvangelist]

Hey @ReubenBond - could you please take a look at this as well?

[rkargMsft]

@IEvangelist @ReubenBond Orleans 9.2.0 is now released which includes Silo Metadata and Placement Filtering as documented here.

https://github.com/dotnet/orleans/releases/tag/v9.2.0

[ReubenBond]

Could Grain Placement Filtering be a sub-page of Grain Placement?

[rkargMsft]

Could Grain Placement Filtering be a sub-page of Grain Placement?

@ReubenBond Moving the file to a folder next to grain-placement.md? or as a section in the existing Grain Placement file?

[ReubenBond]

@rkargMsft I mean as a page nested underneath it - like a sub topic. It's something you'd do by updating the toc file, I believe

[ReubenBond]

I'm not 100% sure it's doable yet, but it seems like a logical organization for the placement filtering doc

[ReubenBond]

@IEvangelist what's the norm here, should the TOC entry be called "Filtering" since it's under the Grain placement section already, or should it match the full page title like it does currently.

[rkargMsft]

@IEvangelist Quick bump on this. The feature has been released. I think the page location question is the only open one we have at this time.