[receiver/telemetryapi] add telemetry api receiver (aws-observability#345)

This receiver listens for events from the Telemetry API and produces telemetry accordingly. The initial implementation will record a span for platform initialization events. Additional improvements would be to generate metrics for all reporting events.

Signed-off-by: Alex Boten <aboten@lightstep.com>

Author: Alex Boten

collector/VERSION

@@ -1 +1 @@
-v0.66.0
+v0.68.0

collector/go.mod

@@ -4,6 +4,8 @@ go 1.18
 
 replace github.com/open-telemetry/opentelemetry-lambda/collector/lambdacomponents => ./lambdacomponents
 
+replace github.com/open-telemetry/opentelemetry-lambda/collector/receiver/telemetryapireceiver => ./receiver/telemetryapireceiver
+
 // fixes ambiguous import error: found package cloud.google.com/go/compute/metadata in multiple modules:
 //        cloud.google.com/go
 //        cloud.google.com/go/compute
@@ -86,6 +88,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor v0.68.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/resourceprocessor v0.68.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/spanprocessor v0.68.0 // indirect
+	github.com/open-telemetry/opentelemetry-lambda/collector/receiver/telemetryapireceiver v0.68.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/prometheus/client_golang v1.14.0 // indirect

collector/internal/lifecycle/manager.go

@@ -89,7 +89,7 @@ func NewManager(ctx context.Context, logger *zap.Logger, version string) (contex
 		}
 	}()
 
-	factories, _ := lambdacomponents.Components()
+	factories, _ := lambdacomponents.Components(res.ExtensionID)
 	lm.collector = collector.NewCollector(logger, factories, version)
 
 	return ctx, lm

collector/internal/telemetryapi/types.go

@@ -20,6 +20,10 @@ type EventType string
 const (
 	// Platform is used to receive log events emitted by the Lambda platform
 	Platform EventType = "platform"
+	// PlatformInitStart is used when function initialization started.
+	PlatformInitStart EventType = Platform + ".initStart"
+	// PlatformInitRuntimeDone is used when function initialization ended.
+	PlatformInitRuntimeDone EventType = Platform + ".initRuntimeDone"
 	// Function is used to receive log events emitted by the function
 	Function EventType = "function"
 	// Extension is used is to receive log events emitted by the extension

collector/lambdacomponents/default.go

@@ -34,13 +34,16 @@ import (
 	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/resourceprocessor"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/spanprocessor"
+
+	"github.com/open-telemetry/opentelemetry-lambda/collector/receiver/telemetryapireceiver"
 )
 
-func Components() (component.Factories, error) {
+func Components(extensionID string) (component.Factories, error) {
 	var errs []error
 
 	receivers, err := receiver.MakeFactoryMap(
 		otlpreceiver.NewFactory(),
+		telemetryapireceiver.NewFactory(extensionID),
 	)
 	if err != nil {
 		errs = append(errs, err)

collector/lambdacomponents/go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor v0.68.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/resourceprocessor v0.68.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/spanprocessor v0.68.0
+	github.com/open-telemetry/opentelemetry-lambda/collector/receiver/telemetryapireceiver v0.68.0
 	go.opentelemetry.io/collector v0.68.0
 	go.opentelemetry.io/collector/component v0.68.0
 	go.opentelemetry.io/collector/exporter/loggingexporter v0.68.0
@@ -43,6 +44,7 @@ require (
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang-collections/go-datastructures v0.0.0-20150211160725-59788d5eb259 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
@@ -63,9 +65,10 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry v0.68.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/prometheus v0.68.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/prometheusremotewrite v0.68.0 // indirect
+	github.com/open-telemetry/opentelemetry-lambda/collector v0.67.0 // indirect
 	github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
 	github.com/prometheus/common v0.39.0 // indirect
-	github.com/prometheus/prometheus v0.40.7 // indirect
+	github.com/prometheus/prometheus v1.8.2-0.20220117154355-4855a0c067e2 // indirect
 	github.com/rs/cors v1.8.2 // indirect
 	github.com/shirou/gopsutil/v3 v3.22.10 // indirect
 	github.com/tidwall/gjson v1.10.2 // indirect
@@ -101,3 +104,7 @@ require (
 //        cloud.google.com/go/compute
 // Force cloud.google.com/go to be at least v0.107.0, so that the metadata is not present.
 replace cloud.google.com/go => cloud.google.com/go v0.107.0
+
+replace github.com/open-telemetry/opentelemetry-lambda/collector => ../
+
+replace github.com/open-telemetry/opentelemetry-lambda/collector/receiver/telemetryapireceiver => ../receiver/telemetryapireceiver