Phase 1: Docker (Before OBI)

3. Check Splunk

1 min

Verify Infrastructure Metrics

Exercise

  1. Open Metric Finder (or make a chart ) and search for workshop_heartbeat
  2. You should see the metric with host.name matching your WORKSHOP_HOST_NAME value.
  3. Search for that host.name to see what other metrics the collector is sending (CPU, memory, disk, etc.).

Confirm APM is Empty

Exercise

  1. Navigate to APM in Splunk Observability Cloud.
  2. Filter by the environment you defined (WORKSHOP_ENVIRONMENT).
  3. It should be empty (or not exist). No services, no traces, no service map.

The collector is sending infrastructure metrics because that’s what it does by default, but it has no traces to export because nothing is generating them.

Note

This is the “before” state. You have three running services processing real requests, but Splunk APM has zero visibility into those requests. In the next section, you’ll fix that – without touching the application code.
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