Add 2 new variables: sns_topic_prefix and sns_topic_postfix

Author: dubiety

README.md

@@ -7,7 +7,7 @@ Terraform module that configures important elasticsearch alerts using CloudWatch
 
 Create a set of sane Elasticsearch CloudWatch alerts for monitoring the health of an elasticsearch cluster.
 
-`v1.0.0` supports terraform `v0.12` syntax!
+`v1.x` supports terraform `v0.12` syntax!
 
 This project is inspired by [CloudPosse](https://github.com/cloudposse)
 
@@ -81,6 +81,8 @@ module "es_alarms" {
 | `monitor_master_cpu_utilization_too_high` | Enable monitoring of CPU utilization of master nodes are too high. Only enable this when dedicated master is enabled | string | `false` | no |
 | `monitor_master_jvm_memory_pressure_too_high` | Enable monitoring of JVM memory pressure of master nodes are too high. Only enable this wwhen dedicated master is enabled | string | `false` | no |
 | `sns_topic` | SNS topic you want to specify. If leave empty, it will use a prefix and a timestampe appended | string | `""` | no |
+| `sns_topic_postfix` | SNS topic postfix | string | `""` | no |
+| `sns_topic_prefix` | SNS topic prefix | string | `""` | no |
 
 ## Outputs
 

examples/simple/main.tf

@@ -18,6 +18,7 @@ module "es_alarms" {
   source              = "../../"
   domain_name         = "example"
   sns_topic           = "elasticsearch-threshold-alerts"
+  sns_topic_prefix    = "prod-"
   min_available_nodes = "3"
 }
 

main.tf

@@ -7,12 +7,12 @@ data "aws_caller_identity" "default" {}
 # Make a topic
 resource "aws_sns_topic" "default_prefix" {
   count       = var.sns_topic == "" ? 1 : 0
-  name_prefix = "elasticsearch-threshold-alerts"
+  name_prefix = "${var.sns_topic_prefix}elasticsearch-threshold-alerts${var.sns_topc_postfix}"
 }
 
 resource "aws_sns_topic" "default" {
   count = var.sns_topic != "" ? 1 : 0
-  name  = var.sns_topic
+  name  = "${var.sns_topic_prefix}${var.sns_topic}${var.sns_topic_postfix}"
 }
 
 locals {

variables.tf

@@ -21,6 +21,18 @@ variable "alarm_name_postfix" {
   default     = ""
 }
 
+variable "sns_topic_prefix" {
+  description = "SNS topic prefix"
+  type        = string
+  default     = ""
+}
+
+variable "sns_topc_postfix" {
+  description = "SNS topic postfix"
+  type        = string
+  default     = ""
+}
+
 variable "monitor_cluster_status_is_red" {
   description = "Enable monitoring of cluster status is in red"
   type        = bool