Add - create aws_cost.sh script to retrieve monthly cost data

Author: son-lam-rakkardigital

services/aws_cost.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+###################################################################
+# # @version 		1.0.0
+# # @script			aws_cost.sh
+# # @author		 	lamhaison
+# # @email		 	[email protected]
+# # @description	Description detail about the script
+# # @bash_version   None
+# # @notes          None
+# # @usage		 	Only use function in the script instead of bash aws_config.sh
+# # @date			YYYYMMDD
+###################################################################
+
+function aws_cost_list_months_later() {
+    # Default is 6 months
+    local months=${1:-'6'}
+    aws ce get-cost-and-usage \
+        --time-period "Start=$(date -d "${months} months ago" +%Y-%m-01),End=$(date -d "$(date +%Y-%m-01) -1 day" +%Y-%m-%d)" \
+        --granularity MONTHLY --metrics "UnblendedCost"
+}