AWS load balancer and maintenance page

Question

I\'m using AWS Load Balancer with 3 EC2 servers, and I\'m trying to serve a Maintenance page when site is under maintenance.

This page need to return 503 HTTP code, bec

Answer 1

Might not meet your 503 requirement but a good option for this is using s3 and dns failover: https://aws.amazon.com/blogs/aws/create-a-backup-website-using-route-53-dns-failover-and-s3-website-hosting/