[증상] Application Gateway 구성 후 브라우저에서 접근하면 아래와 같이 502 Bad Gateway 오류가 발생하는 경우가 있습니다. 또, Application Gateway의 Overview에 "All the instances in one or more of your backend pools are unhealthy. This will result in a 502 error when you try to access your application hosted behind the Application Gateway. Please check the backend health and resolve the issue." 라고 표시되고, Backend health의 Status가 Unhealthy..
