Observability examples¶

Courier can export logs, metrics, and traces over OTLP. The repository includes a local Collector, Tempo, Loki, Prometheus, and Grafana stack.

Local observability stack¶

Start the stack, then run Courier with the sample config:

docker compose -f examples/docker-compose.observability.yml up -d
COURIER_CONFIG=examples/config.toml courier run

The sample configuration exports all three signal types to localhost:4317:

[observability]
service_name = "courier"
log_level = "courier=debug"
log_keys = false

[observability.metrics]
otlp_endpoint = "http://localhost:4317"
export_interval_ms = 5000

[observability.tracing]
otlp_endpoint = "http://localhost:4317"
sample_ratio = 1.0

[observability.logs]
otlp_endpoint = "http://localhost:4317"

Grafana is available at http://localhost:3000. See Observability for the full stack details.