Adding alarm example

examples/cloudfront-simple-alarm.tf

@@ -0,0 +1,24 @@
+resource "aws_s3_bucket" "app_frontend" {
+  bucket_prefix = "my-frontend-app-"
+  acl           = "private"
+}
+
+module "app_frontend" {
+  source = "git::https://github.com/DNXLabs/terraform-aws-static-app.git?ref=2.0.1" # Always check the latest version
+
+  name            = "my-frontend-app"
+  s3_bucket_id    = aws_s3_bucket.app_frontend.id
+  hostnames       = ["www.example.com"]
+  certificate_arn = "arn:aws:acm:us-east-1:<account-id>:certificate/<certificate-hash>" # Replace the <account-id> and <certificate-hash> from a valid certificate
+  hosted_zone     = "example.com"
+  hostname_create = true
+
+  alarms = {
+    "TotalErrorRate" = {
+      threshold = 1 #(%)
+    }
+    "5xxErrorRate" = {
+      threshold = 5 #(%)
+    }
+  }
+}