k6 홈페이지: https://k6.io/
spring MVC vs Spring WebFlux: https://medium.com/codeengineer/sprint-boot-application-using-spring-webmvc-and-webflux-d94672b70595
docker run -i loadimpact/k6 run --vus 10 --duration 30s - <web.js docker run -i loadimpact/k6 run --vus 10 --duration 30s - <webflux.js
docker run -d --rm --name mongoDB
-p 27017:27017
mongo