How do I create DNS entries for EC2 instances created by Auto Scaling?

Posted by Evan on Server Fault See other posts from Server Fault or by Evan
Published on 2014-05-30T14:18:18Z Indexed on 2014/05/30 15:31 UTC
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I'm looking into using auto scaling groups for a tier of webservers that would be fronted by an ELB. One of the things I'm having a hard time with is how to give each new instance the proper DNS name. For example, I'd like webservers to have names like frontend-web-XXX.prod.example.com so their names would appear correct in logs and just ease of organization. I have two other tiers I'd ultimately like to make autoscaled and I'd like them to have names like api-web-XXX.prod.example.com as well. I have some experience with cloudformation templates and have spun up individual instances with associated Route53 records but I don't see any indication of how this can be done within an autoscaled group.

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