[pkg/translator/prometheusremotewrite] Split from prometheusremotewri…

…teexporter (open-telemetry#7240)

* Make otlp to Prom RW conversion importable

This will make it super easy for existing Remote Write compatible systems
like Prometheus ingest OTLP.

Now its as simple as:

```
	prwe := &prometheusremotewriteexporter.PRWExporter{}
	tsMap, dropped, errs := prwe.ConvertMetrics(ctx, md)
```

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Move metrics conversion to pkg/translate

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Add changelog entry

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Make lint pass

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

CHANGELOG.md

@@ -8,6 +8,7 @@
 - `attributesprocessor` `resourceprocessor`: Add `from_context` value source
 - `resourcedetectionprocessor`: check cluster config to verify resource is on aws for eks resources (#7186)
 - `awscloudwatchlogsexporter`: enable awscloudwatchlogsexporter which accepts and exports log data (#7297)
+- `translator/prometheusremotewrite`: add a new module to help translate data from OTLP to Prometheus Remote Write (#7240)
 
 ## 🛑 Breaking changes 🛑
 

cmd/configschema/go.mod

@@ -282,6 +282,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/experimentalmetricmetadata v0.43.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/jaeger v0.43.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/opencensus v0.43.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/prometheusremotewrite v0.43.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/zipkin v0.43.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor v0.43.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/cumulativetodeltaprocessor v0.43.0 // indirect
@@ -366,7 +367,7 @@ require (
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/common/sigv4 v0.1.0 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
-	github.com/prometheus/prometheus v1.8.2-0.20220111145625-076109fa1910 // indirect
+	github.com/prometheus/prometheus v1.8.2-0.20220117154355-4855a0c067e2 // indirect
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
 	github.com/rs/cors v1.8.2 // indirect
 	github.com/santhosh-tekuri/jsonschema v1.2.4 // indirect
@@ -435,7 +436,7 @@ require (
 	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11 // indirect
-	golang.org/x/tools v0.1.8 // indirect
+	golang.org/x/tools v0.1.9-0.20211209172050-90a85b2969be // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	gonum.org/v1/gonum v0.9.3 // indirect
 	google.golang.org/api v0.65.0 // indirect
@@ -629,6 +630,8 @@ replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/zipkin => ../../pkg/translator/zipkin
 
+replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/prometheusremotewrite => ../../pkg/translator/prometheusremotewrite
+
 replace github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor => ../../processor/attributesprocessor
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/processor/cumulativetodeltaprocessor => ../../processor/cumulativetodeltaprocessor/

examples/demo/otel-collector-config.yaml

@@ -8,6 +8,7 @@ exporters:
     endpoint: "0.0.0.0:8889"
     const_labels:
       label1: value1
+
   logging:
 
   zipkin:

exporter/awsprometheusremotewriteexporter/go.mod

@@ -26,9 +26,10 @@ require (
 	github.com/mitchellh/mapstructure v1.4.3 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry v0.43.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/prometheusremotewrite v0.43.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
-	github.com/prometheus/prometheus v1.8.2-0.20220111145625-076109fa1910 // indirect
+	github.com/prometheus/prometheus v1.8.2-0.20220117154355-4855a0c067e2 // indirect
 	github.com/rs/cors v1.8.2 // indirect
 	github.com/spf13/cast v1.4.1 // indirect
 	github.com/tidwall/gjson v1.10.2 // indirect
@@ -57,3 +58,5 @@ replace github.com/open-telemetry/opentelemetry-collector-contrib/exporter/prome
 replace github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal => ../../internal/coreinternal
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry => ../../pkg/resourcetotelemetry
+
+replace github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/prometheusremotewrite => ../../pkg/translator/prometheusremotewrite