[Python] using pydantic.logfire sending data to grafana-otel-container

I am using lofgire to send traces, logs and metrics to grafana-otel container. However, in the grafana UI (reachable unter http://localhost:3000 and login is pw: admin & user: admin), only traces and metrics but no logs are shown.

Here is my docker-compose to set up grafana-otel:

grafana:
driver: local
loki:
driver: local
prometheus:
driver: local

services:
alternative-backend-opentelemetry:
image: grafana/otel-lgtm
network_mode: host
ports:
- 4317:4317
- 4318:4318
- 3000:3000
environment:
- ENABLE_LOGS_LOKI=true
- OTEL_METRIC_EXPORT_INTERVAL=500
- GF_PATHS_DATA=/data/grafana
volumes:
- grafana:/data/grafana
- prometheus:/data/prometheus
- loki:/data/loki


and here is an example of my app.py to send the data via logfire:

os.environ["OTEL_METRIC_EXPORT_INTERVAL"]="5000"
os.environ["OTEL_EXPORTER_OTLP_PROTOCOL"]="http/protobuf"
os.environ["OTEL_EXPORTER_OTLP_ENDPOINT"]="http://localhost:4318"
os.environ["LOGFIRE_HTTPX_CAPTURE_ALL"]="true"

import logfire
import time

logfire.configure(
service_name='service_name',
send_to_logfire=False,
)

logfire.info("User logged in")

with logfire.span("Processing request {request_id}", request_id=123):
# Code within this block is traced within the span
logfire.info("Started processing")
# ... more code ...
logfire.info("Finished processing")


def my_logger():
logfire.info("I'm logging..")


if __name__ == "__main__":
while True:
my_logger()
time.sleep(20)

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