Create a second loop in Terraform using a condition - terraform

Question

I'm a true beginner with Terraform, and here is my problem:
I need to create multiple objects using the same resource of this type:
resource "jamf_smartComputerGroup" "test_smart_1" {
name = "Test Smart 1"
criteria {
priority = 0
name = "UDID"
search_type = "is"
search_value = "FAKE-UDID-THAT-ALSO-DOES-NOT-EXIST"
}
criteria {
priority = 1
name = "UDID"
search_type = "is not"
search_value = "FAKE-UDID-THAT-DOES-NOT-EXIST-LIKE-REALLY"
}
}
IMPORTANT: this resource can have zero or more criterias!
I have created the variables.tf and terraform.vartf files as follow:
variables.tf
variable "jamf_smartComputerGroup_list" {
type = list(object({
SMCG_NAME = string
SMCG_CRITERIA = list(object({
SMCG_CRITERIA_PRIORITY = number
SMCG_CRITERIA_NAME = string
SMCG_CRITERIA_TYPE = string
SMCG_CRITERIA_VALUE = string
}))
}))
}
terraform.vartf
jamf_smartComputerGroup_list = [
{
SMCG_NAME = "smcg_1"
SMCG_CRITERIA = [] # THIS OBJECT HAS ZERO CRITERIA
},
{
SMCG_NAME = "smcg_2"
SMCG_CRITERIA = [ # THIS OBJECT HAS ONE CRITERIA
{
SMCG_CRITERIA_PRIORITY = 0
SMCG_CRITERIA_NAME = "crit"
SMCG_CRITERIA_TYPE = "is not"
SMCG_CRITERIA_VALUE = "false"
}
]
},
{
SMCG_NAME = "smcg_3"
SMCG_CRITERIA = [ # THIS OBJECT HAS TWO CRITERIAS
{
SMCG_CRITERIA_PRIORITY = 0
SMCG_CRITERIA_NAME = "crit 1"
SMCG_CRITERIA_TYPE = "contains"
SMCG_CRITERIA_VALUE = "foo"
},
{
SMCG_CRITERIA_PRIORITY = 1
SMCG_CRITERIA_NAME = "crit 2"
SMCG_CRITERIA_TYPE = "exact match"
SMCG_CRITERIA_VALUE = "bar"
}
]
}
]
In the main.tf file I was able to loop through the objects, without criterias, using this:
resource "jamf_smartComputerGroup" "default" {
for_each = { for idx, val in var.jamf_smartComputerGroup_list : idx => val }
name = each.value.SMCG_NAME
}
But and I can't find the appropriate way to determine if one or more criterias are present; and if there is one more criterias, how to loop through them.
A far as I understand, I can't use two for_each verbs at the same time, and I can't use count with for_each.
Any examples will be appreciated :-) !
Regards,
Emmanuel Canault

Answer 1

You have to use dynamic blocks:
resource "jamf_smartComputerGroup" "test_smart_1" {
for_each = { for idx, val in var.jamf_smartComputerGroup_list : idx => val }
name = each.value.SMCG_NAME
dynamic "criteria" {
` for_each = each.value.SMCG_CRITERIA
content {
priority = criteria.SMCG_CRITERIA_PRIORITY
name = criteria.SMCG_CRITERIA_NAME
search_type = criteria.SMCG_CRITERIA_TYPE
search_value = criteria.SMCG_CRITERIA_VALUE
}
}
}

Answer 2

Thanks #Marcin!
It works with small adaptation : criteria.value.SMCG_... instead of criteria.SMCG_...
Regards,
Emmanuel