Ilia Denisov
8eee018728
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The receiver defaults to Docker API 1.25, but the contour daemon's minimum is
1.40 (it speaks up to 1.54), so otelcol crash-looped on start with "client
version 1.25 is too old". Pinning api_version to 1.44 (accepted by both the
receiver's bundled client and the daemon) starts the receiver cleanly —
verified by running the image against the host socket ("Everything is ready",
no start error).
55 lines
2.0 KiB
YAML
55 lines
2.0 KiB
YAML
# OpenTelemetry Collector for the Scrabble contour. Receives OTLP/gRPC from the
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# three services (backend, gateway, connector — pkg/telemetry exports OTLP only),
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# fans metrics out to a Prometheus scrape endpoint and traces to Tempo.
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receivers:
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otlp:
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protocols:
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grpc:
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endpoint: 0.0.0.0:4317
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# Per-container resource metrics (CPU / memory / network) read straight from the
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# Docker API. This replaces cAdvisor, which on the contour host resolves only the
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# root cgroup (its /var/lib/docker is a separate XFS mount), and works the same in
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# prod. The collector reaches the socket via group_add in docker-compose.yml.
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# collection_interval matches Prometheus' 30s scrape. container.cpu.utilization is a
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# gauge where 100 == one core (it mirrors `docker stats` CPU%).
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docker_stats:
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endpoint: unix:///var/run/docker.sock
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# The receiver defaults to Docker API 1.25, but the daemon's minimum is 1.40
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# (server speaks up to 1.54); pin a version both the receiver's client and the
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# daemon accept, else the receiver fails to start ("client version too old").
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api_version: "1.44"
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collection_interval: 30s
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metrics:
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container.cpu.utilization:
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enabled: true
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processors:
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batch: {}
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exporters:
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# Exposes the collected metrics for Prometheus to scrape (otelcol:9464/metrics).
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# add_metric_suffixes:false keeps the instrument names verbatim (no _seconds /
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# _total unit/type suffixes) so the dashboards' PromQL matches the names defined
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# in code; resource_to_telemetry_conversion promotes service.name to a label.
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prometheus:
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endpoint: 0.0.0.0:9464
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add_metric_suffixes: false
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resource_to_telemetry_conversion:
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enabled: true
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# Forwards traces to Tempo's OTLP ingest.
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otlp/tempo:
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endpoint: tempo:4317
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tls:
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insecure: true
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service:
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pipelines:
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traces:
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receivers: [otlp]
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processors: [batch]
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exporters: [otlp/tempo]
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metrics:
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receivers: [otlp, docker_stats]
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processors: [batch]
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exporters: [prometheus]
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