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[Feat] Add http request meta information to elasticsearch exporter for service management. #877

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[Feat] Add http request meta information to elasticsearch exporter for service management. #877

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1 change: 1 addition & 0 deletions go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ require (
github.com/aws/aws-sdk-go-v2/service/sts v1.28.4
github.com/blang/semver/v4 v4.0.0
github.com/go-kit/log v0.2.1
github.com/google/uuid v1.6.0
github.com/imdario/mergo v0.3.13
github.com/prometheus/client_golang v1.18.0
github.com/prometheus/common v0.46.0
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2 changes: 2 additions & 0 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,8 @@ github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg
github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
github.com/jpillora/backoff v1.0.0 h1:uvFg412JmmHBHw7iwprIxkPMI+sGQ4kzOWsMeHnm2EA=
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18 changes: 16 additions & 2 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ import (

"github.com/alecthomas/kingpin/v2"
"github.com/go-kit/log/level"
"github.com/google/uuid"
"github.com/prometheus-community/elasticsearch_exporter/collector"
"github.com/prometheus-community/elasticsearch_exporter/pkg/clusterinfo"
"github.com/prometheus-community/elasticsearch_exporter/pkg/roundtripper"
Expand All @@ -37,6 +38,17 @@ import (

const name = "elasticsearch_exporter"

type withDefaultHeader struct {
rt http.RoundTripper
}

func (h *withDefaultHeader) RoundTrip(req *http.Request) (*http.Response, error) {
req.Header.Add("X-Opaque-Id", uuid.New().String())
req.Header.Add("x-request-path", "/o11y/prometheus/es_exporter")
req.Header.Add("x-request-from-head-app-name", "elasticsearch_exporter")
return h.rt.RoundTrip(req)
}

type transportWithAPIKey struct {
underlyingTransport http.RoundTripper
apiKey string
Expand Down Expand Up @@ -163,8 +175,10 @@ func main() {
}

httpClient := &http.Client{
Timeout: *esTimeout,
Transport: httpTransport,
Timeout: *esTimeout,
Transport: &withDefaultHeader{
rt: httpTransport,
},
}

if *awsRegion != "" {
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