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Add metrics for http origin latency (#30)
* add metrics Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * add metrics config Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * fix metrics config Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * Summary to Histogram Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * fix handler test Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * add metrics test Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * add metrics test Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * add metrics ListenAndServe test Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * update .licenserc.yaml Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * fix authoz_proxyd_test Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * change metrics name Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> * update Signed-off-by: taniwa <taniwa@lycorp.co.jp> * fix metrics_test Signed-off-by: taniwa <taniwa@lycorp.co.jp> * fix metrics.go Signed-off-by: taniwa <taniwa@lycorp.co.jp> * fix metrics interface, unit test Signed-off-by: taniwa <taniwa@lycorp.co.jp> * Update transport_test Signed-off-by: taniwa <taniwa@lycorp.co.jp> * empty Signed-off-by: myajima <myajima@lycorp.co.jp> * update prometheus Signed-off-by: myajima <myajima@lycorp.co.jp> * prometheus version Signed-off-by: myajima <myajima@lycorp.co.jp> --------- Signed-off-by: myajima <myajima@yahoo-corp.jp> Signed-off-by: taniwa <taniwa@lycorp.co.jp> Signed-off-by: myajima <myajima@lycorp.co.jp> Co-authored-by: taniwa <taniwa@lycorp.co.jp> Co-authored-by: t4niwa <114040262+t4niwa@users.noreply.github.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| // Copyright 2023 LY Corporation | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package service | ||
|
|
||
| import ( | ||
| "github.com/kpango/glg" | ||
| "github.com/pkg/errors" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| ) | ||
|
|
||
| const ( | ||
| HTTP_ORIGIN_LATENCY = "http_origin_latency_in_seconds" | ||
| ) | ||
|
|
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| type Metrics interface { | ||
| Observe(string, float64) error | ||
| } | ||
|
|
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| type metrics struct { | ||
| httpOriginLatency prometheus.Histogram | ||
| } | ||
|
|
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| func NewMetrics() (Metrics, error) { | ||
| m := &metrics{ | ||
| httpOriginLatency: prometheus.NewHistogram(prometheus.HistogramOpts{ | ||
| Name: HTTP_ORIGIN_LATENCY, | ||
| Help: "Origin latency in seconds", | ||
| Buckets: prometheus.DefBuckets, | ||
| }), | ||
| } | ||
|
|
||
| err := prometheus.Register(m.httpOriginLatency) | ||
| if err != nil { | ||
| return nil, errors.Wrap(err, "cannot register metrics") | ||
| } | ||
|
|
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| return m, nil | ||
| } | ||
|
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| func (m *metrics) Observe(name string, value float64) error { | ||
| switch name { | ||
| case HTTP_ORIGIN_LATENCY: | ||
| m.httpOriginLatency.Observe(value) | ||
| default: | ||
| return glg.Errorf("unknown metric name: %s", name) | ||
| } | ||
| return nil | ||
| } |
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