Unable to create additional cluster security group rules

[johngmyers]

Description

Attempting to specify cluster_security_group_additional_rules results in a "Inconsistent conditional result types" error from Terraform.

Versions

• Terraform: v1.0.0
• Provider(s):

• provider registry.terraform.io/hashicorp/aws v3.64.0
• provider registry.terraform.io/hashicorp/cloudinit v2.2.0
• provider registry.terraform.io/hashicorp/kubernetes v2.5.0
• provider registry.terraform.io/hashicorp/local v2.1.0
• provider registry.terraform.io/hashicorp/tls v3.1.0
• provider registry.terraform.io/terraform-aws-modules/http v2.4.1

• Module: 18.0.0

Reproduction

Steps to reproduce the behavior:

Add cluster_security_group_additional_rules input to module. Run terraform plan.

Code Snippet to Reproduce

  cluster_security_group_additional_rules = {
    admin_access = {
      description = "Admin ingress to Kubernetes API"
      cidr_blocks = var.admin_access
      protocol    = "tcp"
      from_port   = 443
      to_port     = 443
      type        = "ingress"
    }
  }

Expected behavior

Additional rule to be added to the created cluster security group.

Actual behavior

Error: Inconsistent conditional result types
│ 
│   on .terraform/modules/eks/main.tf line 122, in resource "aws_security_group_rule" "cluster":
│  122:   for_each = local.create_cluster_sg ? merge(local.cluster_security_group_rules, var.cluster_security_group_additional_rules) : {}
│     ├────────────────
│     │ local.cluster_security_group_rules is object with 3 attributes
│     │ local.create_cluster_sg is true
│     │ var.cluster_security_group_additional_rules is map of object with 1 element
│ 
│ The true and false result expressions must have consistent types. The given expressions are object and object, respectively.
╵

Terminal Output Screenshot(s)

Additional context

local.cluster_security_group_rules should probably be a map instead of an object.

[johngmyers]

Actually, it's probably the part after the : that needs to be a map.

[antonbabenko]

This issue has been resolved in version 18.0.1 🎉

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues. If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.