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# golang
s
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s
Here's the code that iterates through the AZs and creates a subnet in each AZ:
Copy code
// Create public subnets in the VPC
		pubSubnetIds := make([]string, numOfAZs)
		for idx := 0; idx < numOfAZs; idx++ {
			subnetAddr := (idx)*16
			subnetCidrBlock := fmt.Sprintf("%s.%d.0/23", vpcNetPrefix, subnetAddr)
			subnetArgs := &ec2.SubnetArgs {
				VpcId: vpc.ID(),
				AvailabilityZone: pulumi.String(azNames[idx]),
				CidrBlock: pulumi.String(subnetCidrBlock),
				MapPublicIpOnLaunch: pulumi.Bool(true),
			}

			subnet, err := ec2.NewSubnet(ctx, fmt.Sprintf("%s-pub-subnet-%d", baseName, idx), subnetArgs)
			if err != nil {
				log.Printf("error creating subnet: %s", err.Error())
			}
			pubSubnetIds = append(pubSubnetIds, subnet.Id)
		}
The issue is that the 
subnet
variable doesn't have any field named 
Id
, 
id
, or any variation I've tried so far. The 
.ID()
method that is used for VPCs doesn't seem to work for subnets. So how does one capture the ID for a subnet that you've created?
g
.ID()
should work. Are you getting an error when trying it?
s
I'll need to test again to verify, but I think it's just an error trying to use it with the 
append
statement (due to a type mismatch, as far as I can tell). Using 
pulumi.String
doesn't help.
g
Oh... yea, I believe you need 
pubSubnetIds := make([]pulumi.IDOutput, numOfAZs)
s
That will fix it for now, but may introduce type issues later when I need to re-use those IDs (for placing EC2 instances, for example). I guess I'll cross that bridge when I get there. 🙂
Thanks!
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