Cherry-pick #8536 to v1.77.x #8691
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…pc#8536) Part two for grpc/proposal#492 (A97), following grpc#8431 . What this PR does is: - update `internal/xds/bootstrap` with support for loading multiple PerRPCCallCredentials specifed in a new `call_creds` field in the boostrap file as per A97 - adjust `xds/internal/xdsclient/clientimpl.go`to use the call credentials when constructing the client - update `xds/bootstrap` to register the `jwtcreds` call credentials and make them available if `GRPC_EXPERIMENTAL_XDS_BOOTSTRAP_CALL_CREDS` is enabled Relates to istio/istio#53532 RELEASE NOTES: - xds: add support for loading a JWT from file and use it as Call Credentials (A97). To enable this feature, set the environment variable `GRPC_EXPERIMENTAL_XDS_BOOTSTRAP_CALL_CREDS` to `true` (case insensitive).
arjan-bal
added
Type: Feature
Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## v1.77.x #8691 +/- ##
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- Coverage 83.34% 83.30% -0.05%
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Files 417 418 +1
Lines 32296 32347 +51
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+ Hits 26918 26946 +28
- Misses 4006 4025 +19
- Partials 1372 1376 +4
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Do we really need this to be cherrypicked? Is anyone wanting this feature in the upcoming release? Thanks. |
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This change allows Istio users to depend on a tagged gRPC release (instead of a commit hash) for resolving issue istio/istio#53532. We will get a week of internal testing to catch regressions before the 1.77 release, and I don't see any significant harm in including it. |
easwars
approved these changes
Nov 4, 2025
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Original PR: #8536
RELEASE NOTES:
GRPC_EXPERIMENTAL_XDS_BOOTSTRAP_CALL_CREDStotrue(case insensitive).