I have an AWS Application Load Balancer (stored in variable

alb

) that I am dynamically creating a Route53 DNS record from.

alb.loadBalancer.dnsName

produces

dualstack.$RESOURCE_NAME-xxxxxxxxxx.$<http://REGION.elb.amazonaws.com|REGION.elb.amazonaws.com>

, where

xxxxxxxxxx

is a random string of numbers. Is there a way to strip the random string of numbers from the resource name? I set the

name

property on the Pulumi ALB resource, which removed Pulumi's unique suffix, but not the numbers Or am I looking at this the wrong way? My issue/goal here is to keep a static record value to avoid DNS propagation downtime (which can be very long)

I believe (but really not 100%) that those are from AWS. Are those numbers the same as the Pulumi suffix?

Yes those values are aws randomisation. You can’t turn it off

Thanks guys, that makes sense, and I understand why they randomize it -- how do people normally go about avoiding DNS propagation downtime when upgrading the record pointing to a newly-deployed ALB?

Why do you need to replace the ALB? Is that a one time thing?

I may be doing something wrong, but every time I update the container image on a fargate service, the ECS

TaskDefinition

and

Service

change (as expected), which causes the

alb.loadBalancer.dnsName

output to change. Causing the

A

record pointing to that DNS name to be out of sync for a while

Good luck! Sorry I can’t be of more help!

You helped a ton man I was going crazy over the ALB thing and appreciate you verifying how it's supposed to work 😂

(I think I was looking at the listener, not the alb…)

Haha no worries! Did you get it figured out? Btw as a side note, this problem "magically" went away for me which kind of concerns me but it hasn't come up since

I don’t know yet - wading my way through the requirements right now to see if I’ve got everything in place 🙂