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The last of the available variable types is boolean. They give the option to employ simple true or false values. For example, you might wish to have a variable that decides when to generate the root user password on a new deployment.
variable “set_password” {
default = false
}
The above example boolean can be used similarly to a string variable by simply marking down the correct variable.
create_password = “${var.set_password}”
By default, the value is set to false in this example. However, you can overwrite the variable at deployment by assigning a different value in a command line variable.
terraform apply -var set_password=”true”
| variable "create_vm" { | |
| description = "If set to true, it will create vm" | |
| type = bool | |
| } | |
| variable "create_vmss" { | |
| description = "If set to true, it will create vmss" | |
| type = bool | |
| } | |
| and define the resource azurerm_linux_virtual_machine and azurerm_linux_virtual_machine_scale_set in the same VM module. | |
| resource "azurerm_linux_virtual_machine" "example" { | |
| count = var.create_vm ? 1 : 0 | |
| name = "example-machine" | |
| resource_group_name = azurerm_resource_group.example.name | |
| location = azurerm_resource_group.example.location | |
| size = "Standard_F2" | |
| ... | |
| resource "azurerm_linux_virtual_machine_scale_set" "example" { | |
| count = var.create_vmss ? 1 : 0 | |
| name = "example-vmss" | |
| resource_group_name = azurerm_resource_group.example.name | |
| location = azurerm_resource_group.example.location | |
| sku = "Standard_F2" | |
| instances = 1 | |
| admin_username = "adminuser" | |
| .... | |
| Then call the submodule like this, | |
| module "vm" { | |
| source = "./modules/vm" | |
| create_vm = true | |
| create_vmss = false | |
| ... | |
| } |
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