docs: Exclude local zones from aws_availability_zones data source in examples when retrieving list of available zones (#378)

* Add ALB endpoint to outputs - this makes it easier to test for successful deployment

* fix trailing whitespace

* update README to conform with conventions

* Add ALB endpoint to outputs - this makes it easier to test for successful deployment

* EOF fix

* updates in response to bryantbiggs review

* docs updates to go with CR feedback

* prevent ecs az placement from using local-zones

* add fix to all examples - prevent ecs az placement from using local-zones

* fix region

---------

Co-authored-by: Seth Eliot <seliot@arpio.io>

Author: setheliot

examples/complete/main.tf

@@ -2,7 +2,13 @@ provider "aws" {
   region = local.region
 }
 
-data "aws_availability_zones" "available" {}
+data "aws_availability_zones" "available" {
+  # Exclude local zones
+  filter {
+    name   = "opt-in-status"
+    values = ["opt-in-not-required"]
+  }
+}
 
 locals {
   region = "eu-west-1"

examples/ec2-autoscaling/main.tf

@@ -2,7 +2,13 @@ provider "aws" {
   region = local.region
 }
 
-data "aws_availability_zones" "available" {}
+data "aws_availability_zones" "available" {
+  # Exclude local zones
+  filter {
+    name   = "opt-in-status"
+    values = ["opt-in-not-required"]
+  }
+}
 
 locals {
   region = "eu-west-1"

examples/fargate/main.tf

@@ -2,7 +2,13 @@ provider "aws" {
   region = local.region
 }
 
-data "aws_availability_zones" "available" {}
+data "aws_availability_zones" "available" {
+  # Exclude local zones
+  filter {
+    name   = "opt-in-status"
+    values = ["opt-in-not-required"]
+  }
+}
 
 locals {
   region = "eu-west-1"