OpenTelemetry SDK
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    Variable ATTR_GCP_GCE_INSTANCE_HOSTNAMEConst Experimental

    ATTR_GCP_GCE_INSTANCE_HOSTNAME: "gcp.gce.instance.hostname" = ...

    The hostname of a GCE instance. This is the full value of the default or custom hostname.

    my-host1234.example.com
    
    sample-vm.us-west1-b.c.my-project.internal

    @experimental This attribute is experimental and is subject to breaking changes in minor releases of `@opentelemetry/semantic-conventions`.