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Andreas GerstmayrandGitHub
3d5a966c8b
* Support exporting internal Tempo traces via OTLP exporter when `use_otel_tracer` is enabled. Example environment variables to configure OTLP export: ``` OTEL_TRACES_EXPORTER=otlp OTEL_EXPORTER_OTLP_ENDPOINT=http://agent:4318 ``` Signed-off-by: Andreas Gerstmayr <[email protected]> * fix lint errors Signed-off-by: Andreas Gerstmayr <[email protected]> --------- Signed-off-by: Andreas Gerstmayr <[email protected]>
48 lines
1.1 KiB
Go
48 lines
1.1 KiB
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package prometheus // import "go.opentelemetry.io/contrib/bridges/prometheus"
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import (
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"github.com/prometheus/client_golang/prometheus"
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)
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// config contains options for the producer.
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type config struct {
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gatherers []prometheus.Gatherer
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}
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// newConfig creates a validated config configured with options.
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func newConfig(opts ...Option) config {
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cfg := config{}
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for _, opt := range opts {
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cfg = opt.apply(cfg)
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}
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if len(cfg.gatherers) == 0 {
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cfg.gatherers = []prometheus.Gatherer{prometheus.DefaultGatherer}
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}
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return cfg
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}
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// Option sets producer option values.
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type Option interface {
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apply(config) config
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}
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type optionFunc func(config) config
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func (fn optionFunc) apply(cfg config) config {
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return fn(cfg)
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}
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// WithGatherer configures which prometheus Gatherer the Bridge will gather
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// from. If no registerer is used the prometheus DefaultGatherer is used.
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func WithGatherer(gatherer prometheus.Gatherer) Option {
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return optionFunc(func(cfg config) config {
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cfg.gatherers = append(cfg.gatherers, gatherer)
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return cfg
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})
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}
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