feat: add observability endpoints - #146
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Implemented observability endpoints. Fixes #137.
The current setup is intentionally simple: it assumes all nodes use the same observability port, and the endpoints have no access control or TLS.
Endpoints:
/metrics— Prometheus metrics/healthz— liveness check/readyz— readiness check/discovery— Prometheus HTTP service discoveryThe following metrics are currently exported:
The server is enabled using
observability_addrinnode.yaml.