Warp Speed Microservices

The component implements a simple habitable-planet search across universe using Java Streams to demonstrate speed of Graal compiler in comparison with C2 from the HotSpot platform.

Prerequisites

1. Maven 3.5 or newer
2. Java SE 8 or newer
3. Docker 17 or newer (if you want to build and run docker images)
4. Kubernetes 1.7.4 or newer cluster
5. Kubectl 1.7.4 or newer for deploying to Kubernetes

Build

mvn package

Start the application

java -jar target/warp-speed-planet-search.jar

Exercise the application

curl -X GET http://localhost:8080/universe/traverse
{"habitablePlanets":21,"time":2261}

Try health and metrics

curl -s -X GET http://localhost:8080/health
{"outcome":"UP",...
. . .

# Prometheus Format
curl -s -X GET http://localhost:8080/metrics
# TYPE base:gc_g1_young_generation_count gauge
. . .

# JSON Format
curl -H 'Accept: application/json' -X GET http://localhost:8080/metrics
{"base":...
. . .

Build the Docker Image

docker build -t warp-speed-planet-search .

Start the application with Docker

docker run --rm -p 8080:8080 warp-speed-planet-search:latest

Deploy the application to Kubernetes

kubectl cluster-info                         # Verify which cluster
kubectl get pods                             # Verify connectivity to cluster
kubectl create -f app.yaml               # Deploy application
kubectl get service warp-speed-planet-search  # Verify deployed service