added eggress

Author: barissekerciler

main.tf

@@ -10,11 +10,11 @@ resource "aws_security_group" "default" {
 
 resource "aws_security_group_rule" "egress" {
   count             = module.this.enabled && var.use_existing_security_groups == false ? 1 : 0
-  description       = "Allow all egress traffic"
+  description       = "Allow outbound traffic from existing cidr blocks"
   from_port         = 0
   to_port           = 0
   protocol          = "-1"
-  cidr_blocks       = ["0.0.0.0/0"]
+  cidr_blocks       = var.egress_cidr_blocks
   security_group_id = join("", aws_security_group.default.*.id)
   type              = "egress"
 }

variables.tf

@@ -210,3 +210,9 @@ variable "cloudwatch_metric_alarms_enabled" {
   description = "Boolean flag to enable/disable CloudWatch metrics alarms"
   default     = false
 }
+
+variable egress_cidr_blocks {
+  type        = list
+  default     = ["0.0.0.0/0"]
+  description = "Outbound traffic address"
+}