Compose EKS monitoring modules (#115)

* Move modules around

* Update amp billing source

* Merge Java monitoring to EKS

* Update docs

* Merge nginx pattern

* Pre-commit

* Add save and test URL output

* Move EKS dependencies to EKS monitoring module

* update docs

* Update examples and docs

* Add java doc

* Add NGINX doc

* Update nginx doc

* Fix amp monitoring example path

* Fix pre-commit

* Todo: move to main after merge

* Update docs, fix tags

modules/managed-prometheus-monitoring/billing/main.tf

@@ -0,0 +1,32 @@
+resource "aws_cloudwatch_metric_alarm" "amp_billing_anomaly_detection" {
+  alarm_name                = "amp_billing_anomaly"
+  comparison_operator       = "GreaterThanUpperThreshold"
+  evaluation_periods        = "2"
+  threshold_metric_id       = "e1"
+  alarm_description         = "This metric monitors ec2 cpu utilization"
+  insufficient_data_actions = []
+
+  metric_query {
+    id          = "e1"
+    expression  = "ANOMALY_DETECTION_BAND(m1)"
+    label       = "Expected AMP Charges"
+    return_data = "true"
+  }
+
+  metric_query {
+    id          = "m1"
+    return_data = "true"
+    metric {
+      metric_name = "Estimated Charges"
+      namespace   = "AWS/Billing"
+      period      = "21600"
+      stat        = "Maximum"
+      unit        = "Count"
+
+      dimensions = {
+        ServiceName = "Prometheus"
+        Currencty   = "USD"
+      }
+    }
+  }
+}

modules/managed-prometheus-monitoring/billing/versions.tf

@@ -0,0 +1,14 @@
+terraform {
+  required_version = ">= 1.1.0"
+
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = ">= 4.0.0"
+    }
+    grafana = {
+      source  = "grafana/grafana"
+      version = ">= 1.25.0"
+    }
+  }
+}