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OpenTelemetry Collector

This configuration scrapes Prometheus metrics and delivers them to the DDOSCOM Eyenode gateway over OTLP/HTTP with OAuth 2.0.

Before you start

Section titled “Before you start”

Use a distribution that includes the oauth2client extension, such as OpenTelemetry Collector Contrib. Define OTEL_GATEWAY_ENDPOINT, OTEL_GATEWAY_OAUTH_TOKEN_URL, OTEL_GATEWAY_OAUTH_CLIENT_ID, and OTEL_GATEWAY_OAUTH_CLIENT_SECRET in the process environment. Get the secret from Secrets in the Eyenode Dashboard, then see the get-started guide for the remaining values and secure handling.

Configuration

Section titled “Configuration”

Save this file as otel-collector-config.yaml. Replace node_exporter:9100 with your environment’s Prometheus endpoint if needed.

receivers:
  otlp:
    protocols:
      grpc:
      http:


  prometheus:
    config:
      scrape_configs:
        - job_name: node
          static_configs:
            - targets: ['node_exporter:9100']


extensions:
  oauth2client:
    client_id: ${env:OTEL_GATEWAY_OAUTH_CLIENT_ID}
    client_secret: ${env:OTEL_GATEWAY_OAUTH_CLIENT_SECRET}
    token_url: ${env:OTEL_GATEWAY_OAUTH_TOKEN_URL}
    scopes: ["openid"]
    timeout: 10s
    expiry_buffer: 60s


exporters:
  otlphttp:
    endpoint: ${env:OTEL_GATEWAY_ENDPOINT}
    auth:
      authenticator: oauth2client


  debug:
    verbosity: normal


processors:
  batch:


service:
  extensions:
    - oauth2client
  pipelines:
    metrics:
      receivers: [otlp, prometheus]
      processors: [batch]
      exporters: [debug, otlphttp]

Start and validate

Section titled “Start and validate”

Start the Collector with the variables available in its environment. First confirm that the debug exporter prints metrics, then verify otlphttp activity and that Eyenode receives metrics in the correct tenant and time range.

[!NOTE] This configuration enables metrics only. Add separate pipelines before sending logs or traces.

If the pipeline does not deliver signals, follow gateway troubleshooting.

Additional references

Section titled “Additional references”