Ad Service

gRPC ad service for the aiden-demo namespace on EKS. Ships OTLP traces and logs via the OpenTelemetry Java agent to the shared Datadog agent (US3), same pattern as order-service.

Service name in Datadog: ad-service

The Ad service provides advertisement based on context keys. If no context keys are provided then it returns random ads.

Local run

Requires JDK 21+:

./gradlew installDist -PprotoSourceDir=./pb
export AD_PORT=8080
./build/install/opentelemetry-demo-ad/bin/Ad

Container image (GHCR)

Push to initial-setup or main runs .github/workflows/docker-publish.yml:

ghcr.io/stackgen-demo/ad-service:latest

Make the GHCR package public after the first CI run (Packages → ad-service → Change visibility).

Deploy to aiden-demo

Prerequisites: order-service stack applied, datadog-secret present, and OTLP enabled on the agent:

kubectl -n aiden-demo set env deployment/datadog-agent \
  DD_OTLP_CONFIG_RECEIVER_PROTOCOLS_GRPC_ENDPOINT=0.0.0.0:4317

# After CI publishes the image (or local build):
PUSH=true ./scripts/deploy-aiden-demo.sh
# Or apply manifests only:
./scripts/deploy-aiden-demo.sh

Datadog

• APM: service:ad-service env:demo
• gRPC port 8080 (ad-service.aiden-demo.svc:8080)

Docker build (local)

docker build -t ad-service:local .

Protobuf definitions live in pb/demo.proto (vendored from the OpenTelemetry Astronomy Shop demo).

Upgrading Gradle

./gradlew wrapper --gradle-version <new-version>