Zipkin exporter report instrumentation info (#1097)

* Zipkin exporter report instrumentation info

Author: dengliming

exporter/opentelemetry-exporter-zipkin/CHANGELOG.md

@@ -7,6 +7,8 @@
   `port`, `protocol`, `endpoint`. This brings this implementation inline with other
   implementations. 
   ([#1064](https://github.com/open-telemetry/opentelemetry-python/pull/1064))
+- Zipkin exporter report instrumentation info. 
+  ([#1097](https://github.com/open-telemetry/opentelemetry-python/pull/1097))  
 
 ## Version 0.12b0
 

exporter/opentelemetry-exporter-zipkin/src/opentelemetry/exporter/zipkin/__init__.py

@@ -175,6 +175,14 @@ def _translate_to_zipkin(self, spans: Sequence[Span]):
                 "annotations": _extract_annotations_from_events(span.events),
             }
 
+            if span.instrumentation_info is not None:
+                zipkin_span["tags"][
+                    "otel.instrumentation_library.name"
+                ] = span.instrumentation_info.name
+                zipkin_span["tags"][
+                    "otel.instrumentation_library.version"
+                ] = span.instrumentation_info.version
+
             if context.trace_flags.sampled:
                 zipkin_span["debug"] = True
 

exporter/opentelemetry-exporter-zipkin/tests/test_zipkin_exporter.py

@@ -22,6 +22,7 @@
 from opentelemetry.sdk import trace
 from opentelemetry.sdk.trace import Resource
 from opentelemetry.sdk.trace.export import SpanExportResult
+from opentelemetry.sdk.util.instrumentation import InstrumentationInfo
 from opentelemetry.trace import TraceFlags
 
 
@@ -191,6 +192,9 @@ def test_export(self):
         otel_spans[3].start(start_time=start_times[3])
         otel_spans[3].resource = Resource({})
         otel_spans[3].end(end_time=end_times[3])
+        otel_spans[3].instrumentation_info = InstrumentationInfo(
+            name="name", version="version"
+        )
 
         service_name = "test-service"
         local_endpoint = {"serviceName": service_name, "port": 9411}
@@ -252,7 +256,10 @@ def test_export(self):
                 "duration": durations[3] // 10 ** 3,
                 "localEndpoint": local_endpoint,
                 "kind": None,
-                "tags": {},
+                "tags": {
+                    "otel.instrumentation_library.name": "name",
+                    "otel.instrumentation_library.version": "version",
+                },
                 "annotations": None,
             },
         ]