hello-java

Spring Boot demo for the Java → Docker → Helm → Kubernetes lifecycle, instrumented with OpenTelemetry.

Hello from Java Spring Boot!

{
  "message": "Hello from Java Spring Boot!",
  "version": "1.5.0"
}

Send a greeting

Each submission emits a log line, a metric and a trace span — visible in CloudWatch, Grafana and X-Ray.

Recent greetings

• Loading…

Endpoints

• GET /api/hello — the greeting JSON above
• GET /api/greetings — greetings submitted through the form
• GET /actuator/health — Actuator health, used by the Kubernetes probes
• GET /actuator/prometheus — metrics scraped by Prometheus
• GET /observability — telemetry console: service map, traces, metrics, logs

version 1.5.0 · served by hello-java-6df658bb58-j4dl6