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What this PR does / why we need it:
Append shard key metadata to SDK's requests.
We recently introduced key-based sharding on the cluster. This commit appends the shard key(
x-shard-key
) to SDK's requests to do load balancing from Destination Rule in Istio.We can group SDK APIs into project-based and document-based.
The value of
x-shard-key
of project-based APIs such asActivateClient
consists only ofpublic-api-key
that can represent a project.And the value of
x-shard-key
of document-based APIs such asAttachDocument
is{public-api-key}/{document-key}
that can represent a document in the project.Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
Does this PR introduce a user-facing change?:
Additional documentation:
Checklist: