NucliaDB Telemetry Library Python process
Project description
NucliaDB Telemetry
Open telemetry compatible plugin to propagate traceid on FastAPI, Nats and GRPC with Asyncio.
ENV vars:
JAEGER_ENABLED = True
JAEGER_HOST = "127.0.0.1"
JAEGER_PORT = server.port
On FastAPI you should add:
tracer_provider = get_telemetry("HTTP_SERVICE")
app = FastAPI(title="Test API") # type: ignore
if not tracer_provider.initialized:
await init_telemetry(tracer_provider)
set_global_textmap(B3MultiFormat())
FastAPIInstrumentor.instrument_app(app, tracer_provider=tracer_provider)
..
await init_telemetry(tracer_provider) # To start asyncio task
..
On GRPC Server you should add:
tracer_provider = get_telemetry("GRPC_SERVER_SERVICE")
telemetry_grpc = OpenTelemetryGRPC("GRPC_CLIENT_SERVICE", tracer_provider)
if not tracer_provider.initialized:
await init_telemetry(tracer_provider)
set_global_textmap(B3MultiFormat())
server = telemetry_grpc.init_server()
helloworld_pb2_grpc.add_GreeterServicer_to_server(SERVICER, server)
..
await init_telemetry(tracer_provider) # To start asyncio task
..
On GRPC Client you should add:
tracer_provider = get_telemetry("GRPC_CLIENT_SERVICE")
telemetry_grpc = OpenTelemetryGRPC("GRPC_CLIENT_SERVICE", tracer_provider)
if not tracer_provider.initialized:
await init_telemetry(tracer_provider)
set_global_textmap(B3MultiFormat())
channel = telemetry_grpc.init_client(f"localhost:{grpc_service}")
stub = helloworld_pb2_grpc.GreeterStub(channel)
..
await init_telemetry(tracer_provider) # To start asyncio task
..
On Nats Server you should add:
nc = await nats.connect(servers=[self.natsd])
js = self.nc.jetstream()
tracer_provider = get_telemetry("NATS_SERVICE")
if not tracer_provider.initialized:
await init_telemetry(tracer_provider)
set_global_textmap(B3MultiFormat())
jsotel = JetStreamContextTelemetry(
js, "NATS_SERVICE", tracer_provider
)
subscription = await jsotel.subscribe(
subject="testing.telemetry",
stream="testing",
cb=handler,
)
On Nats client you should add:
nc = await nats.connect(servers=[self.natsd])
js = self.nc.jetstream()
tracer_provider = get_telemetry("NATS_SERVICE")
if not tracer_provider.initialized:
await init_telemetry(tracer_provider)
set_global_textmap(B3MultiFormat())
jsotel = JetStreamContextTelemetry(
js, "NATS_SERVICE", tracer_provider
)
await jsotel.publish("testing.telemetry", request.name.encode())
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