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what do you need the az names for?

This is for creating an

aws.rds.Cluster

, which wants

availabilityZones

. I've provisioned the VPC with

numberOfAvailabilityZones

. https://www.pulumi.com/registry/packages/aws/api-docs/rds/cluster/

RDS cluster shouldn’t need availablility zones, you need to create a subnet group then pass the subnet group

Ok, thanks, I'll look into it.

Having just done some work with RDS clusters: AZs aren’t a required field, but if you want to distribute DB instances in multiple AZs you do have to supply a list of AZs by name (independent of/separate from the DB subnet group). I did exactly what @billowy-army-68599 suggested and looked up the created subnets to derive the AZ information from there. I haven’t yet found a better solution.

Right, ok that matches what I was thinking. Thanks for the heads up! I think if I just create a

SubnetGroup

from the VPC

privateSubnetIds

I'm going to get access but not multi-AZ RDS.

Yes, I believe that’s right.

In fairness, they go together since I also need to be able to access the

rds.Cluster

from the

eks.Cluster

😉

Quite true! (And exactly like my use case, which was an EKS cluster accessing an RDS cluster.)