Add e2e test for tail sampling config example

config_examples/README.md

@@ -0,0 +1,45 @@
+# Collector example configurations
+
+Here you can find a collection of example Collector configurations.
+
+## Samples
+
+- [Drop](drop.yaml)
+- [Effective](effective.yaml.yaml)
+- [Health check](healthcheck.yaml)
+- [Jaeget Receiver](jaeger.yaml)
+- [Pipeline](pipeline.yaml)
+- [Tail sampling](tail_sampling.yaml)
+
+## Sending data to Dynatrace
+
+In addition to the `debug` exporter, some samples are also configured with the `otlphttp` exporter
+so you can also see the data in your Dynatrace environment.
+
+Before running the samples, make sure you have the following environment variables set:
+
+- `DT_OTLP_ENDPOINT`: The OTLP HTTP endpoint of your Dynatrace environment.
+  - Follow the guide: [Export to ActiveGate](https://docs.dynatrace.com/docs/shortlink/otel-getstarted-otlpexport#export-to-activegate)
+    to see how to get the correct API URL for your environment
+- `API_TOKEN`: The Dynatrace API access token. Follow the guide on [Authentication](https://docs.dynatrace.com/docs/shortlink/otel-getstarted-otlpexport#authentication-export-to-activegate) to see the scopes required for ingesting OTLP data.
+
+## Trying out the configuration examples
+
+You can try each configuration example by simply passing the file to the collector when starting up:
+
+```shell
+docker run --rm \
+  --name dt-otelcol \
+  -v $(pwd)/config_examples/tail_sampling.yaml:/collector.yaml \
+  ghcr.io/dynatrace/dynatrace-otel-collector/dynatrace-otel-collector:latest \
+  --config collector.yaml
+```
+
+Or try it out from the GitHub repo if you don't have it cloned:
+
+```shell
+docker run --rm \
+  --name dt-otelcol \
+ghcr.io/dynatrace/dynatrace-otel-collector/dynatrace-otel-collector:latest \
+  --config https://raw.githubusercontent.com/Dynatrace/dynatrace-otel-collector/main/config_examples/tail_sampling.yaml
+```

config_examples/tail_sampling.yaml

@@ -19,14 +19,19 @@ processors:
       - name: keep-slow-traces
         type: latency
         latency: {threshold_ms: 500}
+    decision_wait: 30s
 
 exporters:
   debug:
     verbosity: detailed
+  otlphttp:
+    endpoint: ${env:DT_OTLP_ENDPOINT}
+    headers:
+      Authorization: "Api-Token ${env:API_TOKEN}"
 
 service:
   pipelines:
     traces:
       receivers: [otlp]
       processors: [tail_sampling]
-      exporters: [debug]
+      exporters: [otlphttp, debug]

go.mod

@@ -6,12 +6,12 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/testbed v0.93.0
 	github.com/stretchr/testify v1.8.4
 	go.opentelemetry.io/collector/component v0.93.0
+	go.opentelemetry.io/collector/pdata v1.0.1
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	contrib.go.opencensus.io/exporter/prometheus v0.4.2 // indirect
-	github.com/antonmedv/expr v1.15.5 // indirect
 	github.com/apache/thrift v0.19.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
@@ -45,7 +45,6 @@ require (
 	github.com/knadh/koanf/v2 v2.0.1 // indirect
 	github.com/leodido/ragel-machinery v0.0.0-20181214104525-299bdde78165 // indirect
 	github.com/lufia/plan9stats v0.0.0-20220913051719-115f729f3c8c // indirect
-	github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/mapstructure v1.5.1-0.20231216201459-8508981c8b6c // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
@@ -68,7 +67,6 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/receiver/opencensusreceiver v0.93.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/receiver/syslogreceiver v0.93.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/receiver/zipkinreceiver v0.93.0 // indirect
-	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/openzipkin/zipkin-go v0.4.2 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20220216144756-c35f1ee13d7c // indirect
@@ -85,8 +83,6 @@ require (
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/tklauser/go-sysconf v0.3.12 // indirect
 	github.com/tklauser/numcpus v0.6.1 // indirect
-	github.com/uber/jaeger-client-go v2.30.0+incompatible // indirect
-	github.com/uber/jaeger-lib v2.4.1+incompatible // indirect
 	github.com/valyala/fastjson v1.6.4 // indirect
 	github.com/yusufpapurcu/wmi v1.2.3 // indirect
 	go.opencensus.io v0.24.0 // indirect
@@ -114,7 +110,6 @@ require (
 	go.opentelemetry.io/collector/extension/zpagesextension v0.93.0 // indirect
 	go.opentelemetry.io/collector/featuregate v1.0.1 // indirect
 	go.opentelemetry.io/collector/otelcol v0.93.0 // indirect
-	go.opentelemetry.io/collector/pdata v1.0.1 // indirect
 	go.opentelemetry.io/collector/processor v0.93.0 // indirect
 	go.opentelemetry.io/collector/processor/batchprocessor v0.93.0 // indirect
 	go.opentelemetry.io/collector/processor/memorylimiterprocessor v0.93.0 // indirect
@@ -142,7 +137,6 @@ require (
 	go.opentelemetry.io/otel/sdk/metric v1.22.0 // indirect
 	go.opentelemetry.io/otel/trace v1.22.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
-	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.26.0 // indirect
 	golang.org/x/net v0.20.0 // indirect