Remove default port mapping as it is optional (#77)

Fixes #74

Co-authored-by: Matt Gowie <[email protected]>

Author: nitrocode

variables.tf

@@ -29,13 +29,7 @@ variable "port_mappings" {
 
   description = "The port mappings to configure for the container. This is a list of maps. Each map should contain \"containerPort\", \"hostPort\", and \"protocol\", where \"protocol\" is one of \"tcp\" or \"udp\". If using containers in a task with the awsvpc or host network mode, the hostPort can either be left blank or set to the same value as the containerPort"
 
-  default = [
-    {
-      containerPort = 80
-      hostPort      = 80
-      protocol      = "tcp"
-    }
-  ]
+  default = []
 }
 
 # https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_HealthCheck.html