xds: Fixed to pretty-print XdsClusterResource with WrrLocality

[vinodhabib]

Fixed the XdsClusterResource with WrrLocality to pretty-print.

Fixes: #11918

[shivaspeaks]

Add the link to the fusion run logs to verify pretty-print.

[vinodhabib]

Add the link to the fusion run logs to verify pretty-print.

Request you to share the details on how to perform the same activity on this defect branch as we have not done this earlier and not aware of the same.
Thanks in Advance.

[vinodhabib]

@shivaspeaks @AgraVator Any updates here as I can see the latest test fusion build has failed for validation of pretty print logs? is this because my user ID vinodhabib is not valid to trigger the same? how to proceed further on the same?

Logs link for more - https://fusion2.corp.google.com/ci/kokoro/prod:grpc%2Fjava%2Fmaster%2Fbranch%2Fxds_k8s_lb/activity/8082ce1f-9e4c-42b8-9dd0-78a4746f2db6/log

[shivaspeaks]

This build consists of the new changes of this PR.

https://fusion2.corp.google.com/invocations/c3856846-eecb-475c-9623-7959a0f4912c/targets

[xds-client<13>: (trafficdirector.googleapis.com:443)] Received io.grpc.xds.XdsClusterResource@3b08d34c response:
version_info: "1746036723287295449"
resources {
  type_url: "type.googleapis.com/envoy.config.cluster.v3.Cluster"
  value: "\n>cloud-internal-istio:cloud_mp_830293263384_7044488160897652868\020\003\032\n\n\b\032\000\"\002\b\0170\002\"\002\b\036R\"\n \022\006\b\377\377\377\377\a\032\006\b\377\377\377\377\a\"\006\b\377\377\377\377\a*\006\b\377\377\377\377\ar\004\022\002\bd\312\001\231\001\n\226\001\n\032com.google.trafficdirector\022x\nI\n\024backend_service_name\0221\032/psm-interop-backend-service-20250430-1805-4g0kg\n+\n\036backend_service_project_number\022\t\021\000\000\203\270**hB\332\001\r\n\t\t\000\000\000\000\000\000\360?\032\000\342\001]/projects/830293263384/global/backendServices/psm-interop-backend-service-20250430-1805-4g0kg\312\002\223\006\n\220\006\"\215\006\nNBACKEND_SERVICE/830293263384.psm-interop-backend-service-20250430-1805-4g0kg-0\022\272\005\nXtype.googleapis.com/envoy.extensions.load_balancing_policies.wrr_locality.v3.WrrLocality\022\335\004\n\332\004\n\313\001\"\310\001\nNBACKEND_SERVICE/830293263384.psm-interop-backend-service-20250430-1805-4g0kg-1\022v\n+type.googleapis.com/xds.type.v3.TypedStruct\022G\n5type.googleapis.com/test.ThisLoadBalancerDoesNotExist\022\016\n\f\n\003foo\022\005\032\003bar\n\331\001\"\326\001\nNBACKEND_SERVICE/830293263384.psm-interop-backend-service-20250430-1805-4g0kg-2\022\203\001\n+type.googleapis.com/xds.type.v3.TypedStruct\022T\n0type.googleapis.com/test.RpcBehaviorLoadBalancer\022 \n\036\n\vrpcBehavior\022\017\032\rerror-code-15\n\255\001\"\252\001\nNBACKEND_SERVICE/830293263384.psm-interop-backend-service-20250430-1805-4g0kg-3\022X\nVtype.googleapis.com/envoy.extensions.load_balancing_policies.round_robin.v3.RoundRobin\322\002\006*\002\b\0020\002"
}
type_url: "type.googleapis.com/envoy.config.cluster.v3.Cluster"
nonce: "1"
 (failed to pretty-print: com.google.protobuf.InvalidProtocolBufferException: Cannot find type for url: type.googleapis.com/xds.type.v3.TypedStruct)

[vinodhabib]

• PSM Interop: LB tests

@shivaspeaks @sergiitk @ejona86 As per the log details looks like TypedStruct descriptor details are also missing, I will add the same change and request you to trigger the test fusion build.

[vinodhabib]

@shivaspeaks @sergiitk

As per the log details that look like RoundRobin descriptor details are also missing as below exception message, I will add the same change and request you to trigger the test fusion build.

type.googleapis.com/envoy.extensions.load_balancing_policies.round_robin.v3.RoundRobin\\322\\002\\006*\\002\\b\\0020\\002\"\n}\ntype_url: \"type.googleapis.com/envoy.config.cluster.v3.Cluster\"\nnonce: \"1\"\n (failed to pretty-print: com.google.protobuf.InvalidProtocolBufferException: Cannot find type for url: type.googleapis.com/envoy.extensions.load_balancing_policies.round_robin.v3.RoundRobin)"}

I can see the missing entries for pretty print one by one after every build.

Latest test fusion build logs - https://fusion2.corp.google.com/invocations/8bab4f8e-3799-49e0-bd2e-e53c02967f90/targets