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OpenShell/deploy
Seth Jennings 3b7d30934e feat(server): add Prometheus metrics infrastructure and gRPC/HTTP request metrics (#920)
* feat(server): add Prometheus metrics infrastructure and gRPC/HTTP request metrics

Add metrics exposition via a dedicated server port (--metrics-port,
default disabled) following the same optional-listener pattern as the
health port. The metrics crate facade records counters and histograms
in the MultiplexedService hot path, and a PrometheusHandle renders them
at GET /metrics on the dedicated port.

Metrics added:
- openshell_server_grpc_requests_total (counter: method, code)
- openshell_server_grpc_request_duration_seconds (histogram: method, code)
- openshell_server_http_requests_total (counter: path, status)
- openshell_server_http_request_duration_seconds (histogram: path, status)

* feat(helm): add metrics port to openshell-server helm chart

Expose the Prometheus metrics endpoint in the helm chart by adding
service.metricsPort (default 9090) to values, the --metrics-port arg
and container port to the statefulset, and a metrics service port.
Set metricsPort to 0 to disable.
2026-04-23 12:53:13 -07:00
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