Check if Resource ID contains specific word

Terraform
1

I’m trying to figure how to check if an Azure subnet resource id contains a specific word. I’ve tried using contain/regex to no avail.

below are sample of what I’m doing:

variable "subnet_ids" {
    type = set(string)
    default = [
      "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/Test-RG/providers/Microsoft.Network/virtualNetworks/mainVnet/subnets/subnet1",
      "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/Test-RG/providers/Microsoft.Network/virtualNetworks/mainVnet/subnets/subnet2",
      "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/Test-RG/providers/Microsoft.Network/virtualNetworks/mainVnet/subnets/subnet3",
      "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/Test-RG/providers/Microsoft.Network/virtualNetworks/mainVnet/subnets/subnet4",
      "/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/Test-RG/providers/Microsoft.Network/virtualNetworks/mainVnet/subnets/subnet5",
    ]
}

main.tf

resource "null_resource" "this" {
  for_each = var.subnet_ids
  triggers = {
    name = each.value    
  }
}

--# tried with below filters but doesn't seems to work
# name = can(regex("[subnet1|subnet2|subnet3]", each.value)) ? true : false
# name = contains(["subnet1",  "subnet2", "subnet3" ], each.value ) ? each.value : false

— output

# output "nic_ids" {
#     value = [
#         for i in null_resource.this : (contains(["subnet1",  "subnet2", "subnet3"], i )) ? i : null
#     ]
# }
#

any thoughts on how to approach filtering, I just want to select specific ids from the list to operate only on those that meet the filter criteria?

2

Please look back at your post, and observe that the forum software has mangled it by interpreting characters as formatting.

You must enclose code blocks with lines containing only ``` before and after to avoid this.