Merge pull request #2 from B0go/aws-costs-alert

Add AWS estimated charges alert

Author: B0go

Diff for: terraform/cloudwatch/.terraform.lock.hcl

@@ -0,0 +1,10 @@
+terraform {
+  backend "s3" {
+    profile        = "personal-aws-terraform"
+    bucket         = "b0go-terraform-state"
+    key            = "terraform-infrastructure/terraform/cloudwatch/terraform.tfstate"
+    dynamodb_table = "terraform-state-lock"
+    region         = "us-east-1"
+    encrypt        = true
+  }
+}

Diff for: terraform/cloudwatch/backend.tf

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+resource "aws_cloudwatch_metric_alarm" "total-estimate-charge" {
+  alarm_name          = "total-estimate-charge"
+  comparison_operator = "GreaterThanOrEqualToThreshold"
+  evaluation_periods  = "2"
+  metric_name         = "EstimatedCharges"
+  namespace           = "AWS/Billing"
+  period              = "120"
+  statistic           = "Average"
+  threshold           = "10"
+  alarm_description   = "This alart monitors that the total estimated charge is below a threshold"
+  alarm_actions       = [aws_sns_topic.cloudwatch-alarms-topic.arn]
+}

Diff for: terraform/cloudwatch/cloudwatch.tf

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+provider "aws" {
+  region  = "us-east-1"
+  profile = "personal-aws-terraform"
+}

Diff for: terraform/cloudwatch/providers.tf

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+resource "aws_sns_topic" "cloudwatch-alarms-topic" {
+  name = "cloudwatch-alarms-topic"
+}
+
+resource "aws_sns_topic_subscription" "victorbogo-me-topic-subscription" {
+  topic_arn = aws_sns_topic.cloudwatch-alarms-topic.arn
+  protocol  = "email"
+  endpoint  = var.alarms-email
+}

Diff for: terraform/cloudwatch/sns.tf

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+variable "alarms-email" {
+  type = string
+}

Diff for: terraform/cloudwatch/variables.tf

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+terraform {
+  required_version = "~> 1.2.3"
+
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "4.15.0"
+    }
+  }
+}