1. 인증서 발급

2. 호스팅하고 싶은 각 인스턴스 그룹 셋팅

3. 로드밸런서 생성

4. 규칙 추가

5. 레코드 생성

참고

https://aws.amazon.com/ko/blogs/korea/new-host-based-routing-support-for-aws-application-load-balancers/

https://www.youtube.com/watch?v=11yC-s8f2fg&ab_channel=askMLabs

https://devhj.tistory.com/52

https://perfectacle.github.io/2019/04/28/nginx-proxy-aws-elb/

https://serverfault.com/questions/560632/some-nginx-reverse-proxy-configs-stops-working-once-a-day