Add budget

budget/budget.tf

@@ -0,0 +1,51 @@
+data "aws_iam_policy_document" "budget" {
+  statement {
+    actions = [
+      "SNS:Publish",
+    ]
+
+    effect = "Allow"
+
+    principals {
+      type        = "Service"
+      identifiers = ["budgets.amazonaws.com"]
+    }
+
+    resources = [aws_sns_topic.budget.arn]
+  }
+}
+
+resource "aws_sns_topic" "budget" {
+  name = "budget"
+}
+
+resource "aws_sns_topic_policy" "budget" {
+  arn = aws_sns_topic.budget.arn
+
+  policy = data.aws_iam_policy_document.budget.json
+}
+
+resource "aws_sns_topic_subscription" "budget" {
+  topic_arn = aws_sns_topic.budget.arn
+  protocol  = "sms"
+  endpoint  = "+447828835419"
+}
+
+
+resource "aws_budgets_budget" "budget" {
+  name              = "budget"
+  budget_type       = "COST"
+  limit_amount      = "25"
+  limit_unit        = "USD"
+  time_unit         = "MONTHLY"
+  time_period_start = "2021-07-01_00:00"
+
+  notification {
+    notification_type          = "ACTUAL"
+    comparison_operator        = "GREATER_THAN"
+    threshold                  = 100
+    threshold_type             = "PERCENTAGE"
+    subscriber_email_addresses = ["[email protected]"]
+    subscriber_sns_topic_arns  = ["${aws_sns_topic.budget.arn}"]
+  }
+}

budget/main.tf

@@ -0,0 +1,15 @@
+terraform {
+  backend "s3" {
+    bucket = "terraform-nu2dp3915g"
+    key    = "budget/state.tf"
+    region = "eu-west-1"
+
+    dynamodb_table = "terraform"
+  }
+}
+
+provider "aws" {
+  region = "eu-west-1"
+}
+
+data "aws_caller_identity" "current" {}