Local development

Install dependencies

Protobuf generator

go install google.golang.org/protobuf/cmd/protoc-gen-go@latest

Generate

To generate a settings model from OpenAPI definition, execute following command:

go generate ./generated/settings/model.go

To generate a topo_stream model from Protobuf schema execute following command:

go generate ./generated/topostream/model.go

Build collector locally

docker build . -t sts-opentelemetry-collector:latest

Run it locally

Create a file (dev-config.yaml) with configuration for OpenTelemetry Collector.

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:4317
      http:
        endpoint: 0.0.0.0:4318
processors:
  batch:

exporters:
  debug:
    verbosity: detailed

service:
  pipelines:
    traces:
      receivers: [otlp]
      processors: [batch]
      exporters: [debug]
    metrics:
      receivers: [otlp]
      processors: [batch]
      exporters: [debug]
    logs:
      receivers: [otlp]
      processors: [batch]
      exporters: [debug]

docker run --rm -p 4317:4317 -p 4318:4318  -v ./dev-config.yaml:/config.yaml --network="host" sts-opentelemetry-collector:latest  --config /config.yaml

Generate traces

docker run --rm -it --name otel-generator --network host golang /bin/bash

Run inside golang container

go install github.com/open-telemetry/opentelemetry-collector-contrib/tracegen@latest
tracegen --otlp-endpoint localhost:4317 --otlp-insecure --traces 1