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feat: DTOSS-8458: Create a terraform module for azure action group (#145)
* DTOSS-8458: Create a Terraform module for Azure Action Group * DTOSS-8458: Create a Terraform module for Azure Action Group * Pr changes * Pr changes * Pr changes
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‎infrastructure/.gitignore‎

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crash.log
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crash.*.log
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# Exclude all .tfvars files, which are likely to contain sensitive data, such as
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# password, private keys, and other secrets. These should not be part of version
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# control as they are data points which are potentially sensitive and subject
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# to change depending on the environment.
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*.tfvars
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*.tfvars.json
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# Ignore override files as they are usually used to override resources locally and so
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# are not checked in

‎infrastructure/modules/monitor-action-group/examples/example.tfvars‎

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regions = {
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uksouth = {
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is_primary_region = true
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address_space = "10.113.0.0/16"
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connect_peering = false
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subnets = {}
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}
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}
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monitor_action_group = {
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action_group_1 = {
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short_name = "group1"
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email_receiver = {
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alert_team = {
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name = "email1"
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email_address = "alert_team@testing.com"
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use_common_alert_schema = false
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}
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devops = {
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name = "email2"
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email_address = "devops@testing.com"
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use_common_alert_schema = false
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}
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}
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}
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action_group_2 = {
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short_name = "group2"
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webhook_receiver = {
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slack_alerts = {
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name = "slack_alerts"
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service_uri = "http://example.com/alert1"
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use_common_alert_schema = false
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}
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monitoring_alerts = {
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name = "webhook2"
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service_uri = "http://example.com/slack"
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use_common_alert_schema = false
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}
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}
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}
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action_group_3 = {
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short_name = "group3"
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voice_receiver = {
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alerts1 = {
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name = "voice_alerts"
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country_code = "44"
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phone_number = "1234567890"
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}
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}
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sms_receiver = {
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alerts2 = {
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name = "sms_alerts"
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country_code = "44"
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phone_number = "1234567890"
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}
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}
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}
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}

‎infrastructure/modules/monitor-action-group/examples/main.tf‎

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module "monitor_action_group" {
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for_each = local.monitor_action_group_map
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source = "../monitor-action-group"
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name = "${module.regions_config[each.value.region].names.monitor-action-group}-${lower(each.value.short_name)}"
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resource_group_name = azurerm_resource_group.core[each.value.region].name
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location = each.value.region
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short_name = each.value.short_name
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email_receiver = each.value.email_receiver
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event_hub_receiver = each.value.event_hub_receiver
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sms_receiver = each.value.sms_receiver
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voice_receiver = each.value.voice_receiver
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webhook_receiver = each.value.webhook_receiver
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}
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locals {
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monitor_action_group_object_list = flatten([
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for region in keys(var.regions) : [
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for action_group_key, action_group_details in var.monitor_action_group : merge(
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{
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region = region
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action_group_key = action_group_key
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},
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action_group_details
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)
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]
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])
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# ...then project the list of objects into a map with unique keys (combining the iterators), for consumption by a for_each meta argument
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monitor_action_group_map = {
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for object in local.monitor_action_group_object_list : "${object.action_group_key}-${object.region}" => object
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}
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}

‎infrastructure/modules/monitor-action-group/examples/variables.tf‎

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variable "regions" {
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type = map(object({
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address_space = optional(string)
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is_primary_region = bool
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connect_peering = optional(bool, false)
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subnets = optional(map(object({
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cidr_newbits = string
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cidr_offset = string
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create_nsg = optional(bool, true) # defaults to true
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name = optional(string) # Optional name override
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delegation_name = optional(string)
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service_delegation_name = optional(string)
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service_delegation_actions = optional(list(string))
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})))
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}))
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}
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variable "monitor_action_group" {
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description = "Default configuration for the monitor action groups."
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type = map(object({
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short_name = string
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email_receiver = optional(map(object({
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name = string
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email_address = string
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use_common_alert_schema = optional(bool, false)
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})))
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event_hub_receiver = optional(map(object({
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name = string
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event_hub_namespace = string
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event_hub_name = string
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subscription_id = string
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use_common_alert_schema = optional(bool, false)
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})))
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sms_receiver = optional(map(object({
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name = string
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country_code = string
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phone_number = string
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})))
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voice_receiver = optional(map(object({
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name = string
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country_code = string
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phone_number = string
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})))
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webhook_receiver = optional(map(object({
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name = string
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service_uri = string
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use_common_alert_schema = optional(bool, false)
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})))
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}))
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}

‎infrastructure/modules/monitor-action-group/main.tf‎

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resource "azurerm_monitor_action_group" "this" {
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name = var.name
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resource_group_name = var.resource_group_name
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short_name = var.short_name
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dynamic "email_receiver" {
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for_each = var.email_receiver != null ? var.email_receiver : {}
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content {
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name = email_receiver.value.name
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email_address = email_receiver.value.email_address
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use_common_alert_schema = email_receiver.value.use_common_alert_schema
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}
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}
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dynamic "event_hub_receiver" {
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for_each = var.event_hub_receiver != null ? var.event_hub_receiver : {}
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content {
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name = event_hub_receiver.value.name
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event_hub_namespace = event_hub_receiver.value.event_hub_namespace
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event_hub_name = event_hub_receiver.value.event_hub_name
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subscription_id = event_hub_receiver.value.subscription_id
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use_common_alert_schema = event_hub_receiver.value.use_common_alert_schema
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}
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}
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dynamic "sms_receiver" {
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for_each = var.sms_receiver != null ? var.sms_receiver : {}
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content {
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name = sms_receiver.value.name
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country_code = sms_receiver.value.country_code
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phone_number = sms_receiver.value.phone_number
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}
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}
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dynamic "voice_receiver" {
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for_each = var.voice_receiver != null ? var.voice_receiver : {}
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content {
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name = voice_receiver.value.name
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country_code = voice_receiver.value.country_code
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phone_number = voice_receiver.value.phone_number
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}
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}
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dynamic "webhook_receiver" {
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for_each = var.webhook_receiver != null ? var.webhook_receiver : {}
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content {
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name = webhook_receiver.value.name
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service_uri = webhook_receiver.value.service_uri
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use_common_alert_schema = webhook_receiver.value.use_common_alert_schema
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}
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}
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}

‎infrastructure/modules/monitor-action-group/variables.tf‎

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variable "name" {
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type = string
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description = "value of the name of the diagnostic setting"
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}
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variable "resource_group_name" {
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description = "The name of the resource group in which to create the monitor action group."
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type = string
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}
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variable "short_name" {
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description = "The short name of the action group. This will be used in SMS messages."
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type = string
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}
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variable "email_receiver" {
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description = "Email receiver properties."
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type = map(object({
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name = string
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email_address = string
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use_common_alert_schema = optional(bool, false)
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}))
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default = null
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}
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variable "event_hub_receiver" {
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description = "event hub receiver properties."
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type = map(object({
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name = string
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event_hub_namespace = string
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event_hub_name = string
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subscription_id = string
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use_common_alert_schema = bool
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}))
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default = null
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}
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variable "sms_receiver" {
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description = "sms receiver properties."
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type = map(object({
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name = string
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country_code = string
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phone_number = string
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}))
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default = null
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}
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variable "voice_receiver" {
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description = "voice receiver properties."
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type = map(object({
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name = string
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country_code = string
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phone_number = string
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}))
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default = null
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}
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variable "webhook_receiver" {
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description = "webhook receiver properties."
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type = map(object({
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name = string
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service_uri = string
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use_common_alert_schema = bool
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}))
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default = null
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}
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variable "location" {
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description = "The location/region where the Event Hub namespace is created."
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type = string
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validation {
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condition = contains(["uksouth", "ukwest"], var.location)
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error_message = "The location must be either uksouth or ukwest."
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}
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}
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variable "tags" {
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description = "A mapping of tags to assign to the resource."
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type = map(string)
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default = {}
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}

‎infrastructure/modules/shared-config/output.tf‎

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logic-app = lower("LA-${var.env}-${var.location_map[var.location]}-${var.application}")
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managed-devops-pool = lower("private-pool-${var.env}-${var.location_map[var.location]}")
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managed-identity = lower("MI-${var.env}-${var.location_map[var.location]}-${var.application}")
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monitor-action-group = lower("AG-${var.env}-${var.location_map[var.location]}-${var.application}")
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network-interface = upper("${var.env}-${var.location_map[var.location]}-${var.application}")
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network-security-group = upper("NSG-${var.env}-${var.location_map[var.location]}-${var.application}")
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postgres-sql-server = lower("postgres-${var.application}-${var.env}-${var.location_map[var.location]}")

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