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Title
s
square-ability-48831
08/26/2022, 7:01 PMI'm looking at building an Aurora Postgres Serverless V2 cluster in a non-default VPC, but I do not see an apparent way to specify which VPC the cluster should be created in—no option in ClusterArgs or ClusterInstanceArgs—is it just missing? Seems like it's choosing the default VPC - but I really don't want this.
error creating RDS cluster: InvalidParameterCombination: The DB instance and EC2 security group are in different VPCs. The DB instance is in vpc-088d910645c61f340 (Default VPC) and the EC2 security group is in vpc-064aba8b2279cfa50 (my custom Data VPC where I want the cluster to reside)When creating a DB Cluster I see VPC selection in the console - looking for the equivalent for ClusterArgs
v
victorious-dusk-75271
08/26/2022, 8:10 PMYou have to create a subnet groups
s
square-ability-48831
08/26/2022, 9:15 PMthanks for the reply @victorious-dusk-75271 . yeah saw that an imported db cluster had a generated subnet group, but the name was a bit unfortunate with “default” prefix in the naming. are there any docs that have this config explained that you know of?
Create a DB subnet group
A DB subnet group is a collection of subnets that you create in a VPC and that you then designate for your DB instances. A DB subnet group makes it possible for you to specify a particular VPC when creating DB instances.
the default behavior of Cluster creation in the console seems to create a subnet group with both private and public subnets - is there a reason to include the public subnets for the RDS cluster?
v
victorious-dusk-75271
08/26/2022, 10:00 PM@square-ability-48831 you can see the example here https://github.com/pulumi/examples/tree/master/aws-ts-stackreference-architecture/database
no, you just need to provide the private subnets
s
square-ability-48831
08/26/2022, 10:14 PMoh nice, was using the vpc template from that example already