[exporter/loadbalancing] Add metrics routing_key=attributes support #45708
+820
−119
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Description
Adds
routing_key: attributessupport for metrics in the loadbalancing exporter. Metrics are split by composite keys built from resource/scope/datapoint attributes, matching the routing_attributes list.Link to tracking issue
Fixes #45675
Testing
Added unit test for attribute routing.
Documentation
Updated
exporter/loadbalancingexporter/README.mdto describe metrics attribute routing.