Trying to get the availability zones out of my

awsx.ec2.Vpc

. Looking at https://www.pulumi.com/registry/packages/awsx/api-docs/ec2/vpc/, it seems that the usual "All input properties are implicitly available as output properties." applies, but

vpc.availabilityZoneNames

throws an error. Any ideas?

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.)