title: How to configure hostname in ECS Fargate task definition
body: <p>We are migrating from ECS to Fargate. In ECS, we could set the hostname in the task definition like this:<br>
  "hostname": "%HOST_NAME%"</p>
  
  <p>It fails to create with the error 'hostname is not supported on container when networkMode=awsvpc'
  Is there any way to set hostname ?</p>