Telemetry

1# Telemetry — v2
2# v2 uses OTLP-first reporting to GraphOS Studio (otlp_tracing_sampler defaults to 1.0).
3# Legacy FTV1 reporting is still available but secondary.
4# `experimental_when_header` is removed in v2 — use custom telemetry events instead.
5telemetry:
6  apollo:
7    client_name_header: apollographql-client-name
8    client_version_header: apollographql-client-version
9
10  exporters:
11    logging:
12      stdout:
13        enabled: true
14        format: json
15
16    metrics:
17      prometheus:
18        enabled: true
19        listen: 0.0.0.0:9090
20        path: /metrics
21
22    tracing:
23      otlp:
24        enabled: true
25        endpoint: ${env.OTEL_COLLECTOR_ENDPOINT:-http://otel-collector:4317}
26        protocol: grpc
27      common:
28        service_name: apollo-router
29        sampler: 0.1
30      propagation:
31        trace_context: true
32
33  instrumentation:
34    spans:
35      router:
36        attributes:
37          environment:
38            static_value: ${env.ENVIRONMENT:-production}
39          client:
40            request_header: x-client-id