Terraform always rebuild aws_network_acl when rules are capitalized

[hauleth]

Terraform Version

Terraform v0.9.8

Affected Resource(s)

• aws_network_acl

Terraform Configuration Files

resource "aws_network_acl" "acl" {
  vpc_id = "${module.network.vpc_id}"

  subnet_ids = [
    "${module.network.public_subnets}",
    "${module.network.private_subnets}",
    "${module.network.database_subnets}",
  ]

  ingress {
    action     = "Allow"
    from_port  = 0
    to_port    = 0
    protocol   = -1
    rule_no    = 1
    cidr_block = "0.0.0.0/0"
  }

  egress {
    action     = "Allow"
    from_port  = 0
    to_port    = 0
    protocol   = -1
    rule_no    = 2
    cidr_block = "0.0.0.0/0"
  }
}

Expected Behavior

To keep that configuration always.

Actual Behavior

It marks such configuration as tainted and rebuild it each time due to capitalisation of Apply.

Steps to Reproduce

1. terraform apply

Fix

I believe that we should either compare case-independently in this case or downcase before comparison. Alternatively some warning would be nice.

[ghost]

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.

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