Rename example.py -> example_http.py (#317)

* Rename example.py -> example-http.py

* Add OTel resource to TracerProvider

* udpate example-http.py to example_http.py

* Trigger status checks

samples/otlptrace/example.py → samples/otlptrace/example_http.py

@@ -15,7 +15,6 @@
 
 import google.auth
 import google.auth.transport.requests
-from google.auth.transport.requests import AuthorizedSession
 from opentelemetry import trace
 from opentelemetry.exporter.otlp.proto.http.trace_exporter import (
     OTLPSpanExporter,
@@ -31,16 +30,19 @@
     "x-goog-user-project": credentials.quota_project_id,
     "Authorization": "Bearer " + credentials.token,
 }
+resource = Resource.create(attributes={
+    SERVICE_NAME: "otlp-gcp-http-sample"
+})
 
-trace_provider = TracerProvider()
+trace_provider = TracerProvider(resource=resource)
 processor = BatchSpanProcessor(OTLPSpanExporter(headers=req_headers))
 trace_provider.add_span_processor(processor)
 trace.set_tracer_provider(trace_provider)
 tracer = trace.get_tracer("my.tracer.name")
 
 
 def do_work():
-    with tracer.start_as_current_span("span-name") as span:
+    with tracer.start_as_current_span("span-http") as span:
         # do some work that 'span' will track
         print("doing some work...")
         # When the 'with' block goes out of scope, 'span' is closed for you