feat: add possibility to provide availability zone

main.tf

@@ -56,6 +56,7 @@ resource "aws_instance" "default" {
   #bridgecrew:skip=BC_AWS_GENERAL_31: Skipping `Ensure Instance Metadata Service Version 1 is not enabled` check until BridgeCrew support condition evaluation. See https://github.com/bridgecrewio/checkov/issues/793
   count                       = module.this.enabled ? 1 : 0
   ami                         = coalesce(var.ami, join("", data.aws_ami.default[*].id))
+  availability_zone           = length(var.availability_zone) > 0 ? var.availability_zone : null
   instance_type               = var.instance_type
   user_data                   = length(var.user_data_base64) > 0 ? var.user_data_base64 : local.user_data_templated
   vpc_security_group_ids      = compact(concat(module.security_group[*].id, var.security_groups))

variables.tf

@@ -20,6 +20,11 @@ variable "subnets" {
   description = "AWS subnet IDs"
 }
 
+variable "availability_zone" {
+  type        = string
+  description = "(Optional) AZ to start the instance in"
+}
+
 variable "user_data" {
   type        = list(string)
   default     = []