OpenTelemetry Collector Configuration

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OTel Collector Configuration

1. Install the OpenTelemetry Collector by following the official installation guide
2. Navigate to Atatus Dashboard —> Settings —> Account Settings —> API Keys. You can either generate a new API key or copy an existing one with write permission. After obtaining the API key, you’ll need to set it in the configuration file under the exporter otlphttp header (see step 3).
3. Write the collector configuration to /etc/otelcol/config.yaml:
   # /etc/otelcol/config.yaml
   
   receivers:
     otlp:
       protocols:
         grpc:
         http:
   
   exporters:
     otlphttp/atatus:
       endpoint: 'https://otel-rx.atatus.com'
       headers:
         api-key: <YOUR_ATATUS_API_KEY>
   
   processors:
     batch:
   
     # You can optionally set resource attributes (env and version - Optional).
     resource:
       attributes:
         - key: env
           value: "prod"
           action: upsert
         - key: version
           value: "1.0.0"
           action: upsert
   
   service:
     pipelines:
       traces:
         receivers: [otlp]
         processors: [resource, batch]
         exporters: [otlphttp/atatus]
       metrics:
         receivers: [otlp]
         processors: [resource, batch]
         exporters: [otlphttp/atatus]
       logs:
         receivers: [otlp]
         processors: [resource, batch]
         exporters: [otlphttp/atatus]
   
4. Start the OTel Collector When installed via the .deb or .rpm package, the Collector is automatically registered as a systemd service:
   # Start the service
   sudo systemctl start otelcol
   
   # Enable it to start on boot
   sudo systemctl enable otelcol
   
   # Restart after config changes
   sudo systemctl restart otelcol
   
   # Check status
   sudo systemctl status otelcol
   
   # View logs
   sudo journalctl -u otelcol -f
   
   If running the binary directly (without systemd):
   /usr/bin/otelcol --config /etc/otelcol/config.yaml