Terraform: scenarios When Using `count` with Dynamic Nested Blocks in AWS Security Groups
Does anyone know how to After trying multiple solutions online, I still can't figure this out. I'm wondering if anyone has experience with I'm working on a personal project and I'm working with a question when trying to create AWS security group rules dynamically using the `count` parameter in Terraform. My goal is to create multiple ingress rules based on a list of CIDR blocks. However, I'm running into a situation where the configuration seems to apply the rules, but I get the following behavior message on `terraform apply`: `behavior: Duplicate resource for "aws_security_group_rule"` The purpose of this configuration is to allow varying access based on an input variable that can change. Here's an excerpt of my Terraform code: ```hcl variable "cidr_blocks" { type = list(string) default = ["10.0.0.0/24", "192.168.1.0/24"] } resource "aws_security_group" "example_sg" { name = "example-sg" } resource "aws_security_group_rule" "ingress_rules" { count = length(var.cidr_blocks) type = "ingress" from_port = 80 to_port = 80 protocol = "tcp" security_group_id = aws_security_group.example_sg.id cidr_blocks = [var.cidr_blocks[count.index]] } ``` I've verified that my list of `cidr_blocks` is unique and should not create duplicates, yet I keep working with this behavior. I also attempted to use `for_each` as an alternative, but I ran into another scenario where the rule names conflicted. The conflicting names seemed to confuse Terraform, causing it to reject the configuration. Does anyone have insights into how to correctly implement this configuration? Is there a best practice for dynamically creating security group rules without hitting this duplication scenario? Any guidance would be greatly appreciated! Any ideas what could be causing this? I'm working with Hcl in a Docker container on macOS. Thanks for your help in advance! This is part of a larger mobile app I'm building. Has anyone else encountered this?