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README.md

Spring Weather (JAR) Example

This example implements a simple weather REST service using Spring Boot (JAR).

Build and run with JDK8+

$ mvn package
$ java -jar target/spring-weather-jar-1.0.0.jar

$ mvn spring-boot:run

Build and run with Docker

$ docker build -t spring-weather-jar:1.0.0 .
$ docker run -it --rm --cpus 2 --memory 512m -p 8080:8080 -p 9090:9090 spring-weather-jar:1.0.0

Exercise the application

$ curl -X GET http://localhost:8080/api/weather\?city\=Rosenheim
{"city":"Rosenheim","weather":"Sunshine"}

$ curl -X GET http://localhost:8080/

$ curl -X GET http://localhost:8080/metrics
$ curl -X GET http://localhost:8080/health

Load Testing

Assuming you have started InfluxDB and Grafana using Docker Compose from the root of this repository, you can now start the K6 load test for the weather service.

$ k6 run -u 50 -d 60s src/test/k6/spring-weather.js -o influxdb=http://localhost:8086/k6

$ k6 run -u 100 -d 120s src/test/k6/spring-weather.js -o influxdb=http://localhost:8086/k6
$ k6 run -u 0 -s 10s:100 -s 100s -s 10s:0 src/test/k6/spring-weather.js -o influxdb=http://localhost:8086/k6