Here is python script that sends test trace directly to tempo instance :
import base64
from typing import Tuple
from opentelemetry import trace
from opentelemetry.exporter.otlp.proto.http.trace_exporter import \
OTLPSpanExporter
from opentelemetry.sdk.resources import Resource
from opentelemetry.sdk.trace import Tracer, TracerProvider
from opentelemetry.sdk.trace.export import BatchSpanProcessor
def create_span_exporter_for_tempo() -> Tuple[Tracer, BatchSpanProcessor]:
resource = Resource(attributes={"service.name": constants.APP_NAME})
headers = {
"Authorization": f"Basic {base64.b64encode(f'{constants.GRAFANA_USERNAME}:{constants.GRAFANA_PASSWORD}'.encode('ascii')).decode('ascii')}"
}
tempo_exporter = OTLPSpanExporter(endpoint=constants.TEMPO_ENDPOINT, headers=headers)
trace.set_tracer_provider(TracerProvider(resource=resource))
tracer = trace.get_tracer(__name__)
span_processor = BatchSpanProcessor(tempo_exporter)
trace.get_tracer_provider().add_span_processor(span_processor)
return tracer, span_processor
tracer, span_processor = create_span_exporter_for_tempo()
with tracer.start_as_current_span("test") as span:
print("test!")
span.set_attribute("check", "works")
My Grafana Cloud setup looks like this :
Here are some of variations of tempo endpoint tried :
1. https://tempo-prod-04-prod-us-east-0.grafana.net/tempo
2. https://tempo-prod-04-prod-us-east-0.grafana.net/tempo/v1/traces
3. https://tempo-prod-04-prod-us-east-0.grafana.net/v1/traces
4. https://tempo-prod-04-prod-us-east-0.grafana.net:443/tempo/v1/traces
5. https://tempo-prod-04-prod-us-east-0.grafana.net/tempo/v1/trace
All of these endpoint return the same output :
Failed to export batch code: 404, reason: 404 page not found
Please note that, I have tested out this tempo instance by setting up grafana agent & I was able to send traces via grafana agent.
My requirement is to send traces without deploying grafana agent as I am sending traces from lambda & do not want to run agent somewhere else 24X7.
Here is python library being used
