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From the subnet you created, you can do something like:

privateSubnet.ID().ToStringOutput()

To get the subnet as a StringOutput, and then you can put it in an slice

[]pulumi.StringOutput

Once you have that slice, you can do something like:

PrivateSubnetIds: pulumi.ToStringArrayOutput(yourSliceOfSubnets)

Hope this helps!

it does indeed!

Excellent 🙂

my solution looks like this, very similar to your suggestion - I created a slice outside of the subnet creation loop

var privateSubnets pulumi.StringArray
        for i, zone := range zones.Names {
                privateSubnet, err := ec2.NewSubnet(ctx, fmt.Sprintf("eks-subnet-private-%d", i), &ec2.SubnetArgs{
                VpcId:               vpc.ID(),
                CidrBlock:           pulumi.String(fmt.Sprintf("%s.1%d.0/24", netWork, i)),
                AvailabilityZone:    pulumi.String(zone),
                MapPublicIpOnLaunch: pulumi.Bool(true),
                Tags:                GetTags(ctx, fmt.Sprintf("eks-%s-subnet-private-%d", environment, i)),
            })
            if err != nil {
                return err
            }

            privateSubnets = append(privateSubnets, privateSubnet.ID().ToStringOutput())

            ...

Then I can pass this slice to my EKS creation Statement

eksCluster, err := eks.NewCluster(ctx, "eks-cluster", &eks.ClusterArgs{
    RoleArn: pulumi.StringInput(eksRole.Arn),
    VpcConfig: &eks.ClusterVpcConfigArgs{
        PublicAccessCidrs: pulumi.StringArray{
            pulumi.String("0.0.0.0/0"),
        },
        SecurityGroupIds: pulumi.StringArray{
            clusterSg.ID().ToStringOutput(),
        },
        SubnetIds: privateSubnets, <<<
    },
})

thank you once again!

My code looks nearly identical - nice!

I don't think i am used to all this freedom and choice pulumi gives us 🙂

It is a blessing and a curse.