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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?

It wouldn’t be a part of a regular deploy process, right?

One point of the ALB is being able to swap what’s attached to it, vs needing to do stuff with DNS

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

The only Pulumi diff is the ECS resources (task definition &amp; service)

I'll keep debugging, I'm sure it's just an issue with my code. Your point about ALB being static makes sense and is what I expected to be the case originally so I must have some implicit dependency somewhere. Thanks for your thoughts and help!

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 :joy:

(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 :slightly_smiling_face:

Right now it’s giving me an error saying that the ttl is required even though it’s present on the parameters…

Ah, it _wasn’t_ supposed to be present… obviously… seems like it might have worked, so… onwards and upwards!