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Send traces to Tempo and expose metrics to Prometheus

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Point the OTLP exporter at Tempo instead of Jaeger.

Enable the built-in /metrics endpoint by setting METRICS_SECRET: without
it LibreChat answers 401 and exposes nothing. Prometheus scrapes it with a
Bearer token from a dedicated job, since annotation-based discovery cannot
carry credentials.

A Kubernetes Secret is namespaced, so the same value must also exist as
`librechat-metrics` in the observability namespace — one side verifies the
token, the other presents it. secret.example.yaml documents the pairing;
the real secret.yaml stays gitignored.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Stéphane Tailland
2026-08-25 07:27:14 +02:00
parent 40c6e9d723
commit 6aad64903b
3 changed files with 22 additions and 1 deletions
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k8s/configmap.yaml
+1 -1
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@@ -30,5 +30,5 @@ data:
DEBUG_LOGGING: "false"
OTEL_TRACING_ENABLED: "true"
OTEL_SERVICE_NAME: "librechat"
OTEL_EXPORTER_OTLP_ENDPOINT: "http://jaeger.observability.svc.cluster.local:4318"
OTEL_EXPORTER_OTLP_ENDPOINT: "http://tempo.observability.svc.cluster.local:4318"
OTEL_TRACES_EXPORTER: "otlp"