Support delta xds conversion

[Yi]

Has any plans for supporting Delta xds?

[Jess Yuen]

Hi @Lynskylate, yes there is but the timeline is not solidified. We're waiting on a go-control-plane change to merge to support Incremental first. Always looking for contributors as well!

[Prakasam Kannan]

Hi @jessicayuen

We (ebay) use our custom config manager to push Envoy config, and we are planning on adding delta updates I wonder if you guys contemplated, converting STOW responses into delta updates in xds-relay and want to explore it.

[Matt Klein]

@kprakasam this is exactly what this issue tracks. We would love to have help implementing SoTW to delta conversion.