func main() {
        pulumi.Run(func(ctx *pulumi.Context) error {
                // Read in some ENV, which will be the branch name eventually
                branch := os.Getenv("BRANCH")
                // Read back the Test VPC and public subnets
                v := "vpc-###############"
                vpc, err := ec2.LookupVpc(ctx, &ec2.LookupVpcArgs{Id: &v})
                if err != nil {
                        return err
                }
                privateSg, err := ec2.NewSecurityGroup(ctx, "Test-" + branch + "-priv", &ec2.SecurityGroupArgs{
                        VpcId: pulumi.String(vpc.Id),
                })
                if err != nil{
                        return err
                }
                ctx.Export("sg", privateSg.Id)
                return nil
        })
}

group.ID()

group.ID