[chore] [exporter/datadog] Refactor host metadata in terms of a pusher (

open-telemetry#24271)

**Description:** 

Refactors current host metadata logic in preparation for using
`inframetadata.Reporter`.

This is an internal-only change with no user-facing consequences

cmd/configschema/go.mod

@@ -22,8 +22,8 @@ require (
  github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/monitor/armmonitor v0.8.0 // indirect
  github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/resources/armresources v1.0.0 // indirect
  github.com/AzureAD/microsoft-authentication-library-for-go v0.8.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.5.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/metrics v0.5.1 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.5.2 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/metrics v0.5.2 // indirect
  github.com/gocql/gocql v1.3.1 // indirect
  github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed // indirect
  github.com/open-telemetry/opentelemetry-collector-contrib/exporter/alibabacloudlogserviceexporter v0.81.0 // indirect
@@ -248,9 +248,9 @@ require (
  github.com/DataDog/datadog-go/v5 v5.1.1 // indirect
  github.com/DataDog/go-tuf v0.3.0--fix-localmeta-fork // indirect
  github.com/DataDog/gohai v0.0.0-20220718130825-1776f9beb9cc // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/inframetadata v0.5.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/logs v0.5.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/quantile v0.5.1 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/inframetadata v0.5.2 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/logs v0.5.2 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/quantile v0.5.2 // indirect
  github.com/DataDog/sketches-go v1.4.2 // indirect
  github.com/DataDog/zstd v1.5.2 // indirect
  github.com/GehirnInc/crypt v0.0.0-20200316065508-bb7000b8a962 // indirect

cmd/otelcontribcol/go.mod

@@ -264,11 +264,11 @@ require (
  github.com/DataDog/datadog-go/v5 v5.1.1 // indirect
  github.com/DataDog/go-tuf v0.3.0--fix-localmeta-fork // indirect
  github.com/DataDog/gohai v0.0.0-20220718130825-1776f9beb9cc // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/inframetadata v0.5.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.5.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/logs v0.5.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/metrics v0.5.1 // indirect
- github.com/DataDog/opentelemetry-mapping-go/pkg/quantile v0.5.1 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/inframetadata v0.5.2 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.5.2 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/logs v0.5.2 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/metrics v0.5.2 // indirect
+ github.com/DataDog/opentelemetry-mapping-go/pkg/quantile v0.5.2 // indirect
  github.com/DataDog/sketches-go v1.4.2 // indirect
  github.com/DataDog/zstd v1.5.2 // indirect
  github.com/GehirnInc/crypt v0.0.0-20200316065508-bb7000b8a962 // indirect

exporter/datadogexporter/factory.go

@@ -195,7 +195,7 @@ func (f *factory) createMetricsExporter(
  if md.ResourceMetrics().Len() > 0 {
  attrs = md.ResourceMetrics().At(0).Resource().Attributes()
  }
- go hostmetadata.Pusher(ctx, set, newMetadataConfigfromConfig(cfg), hostProvider, attrs)
+ go hostmetadata.RunPusher(ctx, set, newMetadataConfigfromConfig(cfg), hostProvider, attrs)
  })
 
  return nil
@@ -264,7 +264,7 @@ func (f *factory) createTracesExporter(
  if td.ResourceSpans().Len() > 0 {
  attrs = td.ResourceSpans().At(0).Resource().Attributes()
  }
- go hostmetadata.Pusher(ctx, set, newMetadataConfigfromConfig(cfg), hostProvider, attrs)
+ go hostmetadata.RunPusher(ctx, set, newMetadataConfigfromConfig(cfg), hostProvider, attrs)
  })
  return nil
  }
@@ -320,7 +320,7 @@ func (f *factory) createLogsExporter(
  pusher = func(_ context.Context, td plog.Logs) error {
  f.onceMetadata.Do(func() {
  attrs := pcommon.NewMap()
- go hostmetadata.Pusher(ctx, set, newMetadataConfigfromConfig(cfg), hostProvider, attrs)
+ go hostmetadata.RunPusher(ctx, set, newMetadataConfigfromConfig(cfg), hostProvider, attrs)
  })
  return nil
  }

exporter/datadogexporter/go.mod

@@ -7,11 +7,11 @@ require (
  github.com/DataDog/datadog-agent/pkg/trace v0.47.0-rc.2
  github.com/DataDog/datadog-api-client-go/v2 v2.14.0
  github.com/DataDog/gohai v0.0.0-20220718130825-1776f9beb9cc
- github.com/DataDog/opentelemetry-mapping-go/pkg/inframetadata v0.5.1
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.5.1
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/logs v0.5.1
- github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/metrics v0.5.1
- github.com/DataDog/opentelemetry-mapping-go/pkg/quantile v0.5.1
+ github.com/DataDog/opentelemetry-mapping-go/pkg/inframetadata v0.5.2
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/attributes v0.5.2
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/logs v0.5.2
+ github.com/DataDog/opentelemetry-mapping-go/pkg/otlp/metrics v0.5.2
+ github.com/DataDog/opentelemetry-mapping-go/pkg/quantile v0.5.2
  github.com/DataDog/sketches-go v1.4.2
  github.com/GoogleCloudPlatform/opentelemetry-operations-go/detectors/gcp v1.16.1
  github.com/aws/aws-sdk-go v1.44.299