I'm trying to use terraform to deploy budget alert for Azure, unfortunately there's no native resource in terraform for that, so I'm using azurerm_subscription_template_deployment along with ARM template.
I noticed a strange thing is after the deployment, everything seem fine, I can see the resource (in ARM template) by doing terraform state show.
However, when I do destroy, it doesn't seem to delete the budget alert, it's still there, and if I do terraform state list, it's showing everything is deleted without a trace, but actual resource is still there.
I noticed terraform has the following for azurerm_resource_group_template_deployment, I assume this is also for subscrption deployment
"This resource will automatically attempt to delete resources deployed by the ARM Template when it is deleted. You can opt-out of this by setting the delete_nested_items_during_deletion field within the template_deployment block of the features block to false."
so If I understand this correctly, If my features block is by default, it should delete the actual resource, when doing destroy.
why it's not behaving correctly?
code as following
resource "azurerm_subscription_template_deployment" "budgetalert" {
name = "mcs_budget_alert"
location = var.location
template_content = <<-TEMPLATE
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"client_initial": {
"type": "string",
"metadata": {
"description": "Name of the Budget. It should be unique within a resource group."
}
},
"amount": {
"type": "string",
"defaultValue": "1000",
"metadata": {
"description": "The total amount of cost or usage to track with the budget"
}
},
"timeGrain": {
"type": "string",
"defaultValue": "Monthly",
"allowedValues": [
"Monthly",
"Quarterly",
"Annually"
],
"metadata": {
"description": "The time covered by a budget. Tracking of the amount will be reset based on the time grain."
}
},
"startDate": {
"type": "string",
"metadata": {
"description": "The start date must be first of the month in YYYY-MM-DD format. Future start date should not be more than three months. Past start date should be selected within the timegrain preiod."
}
},
"endDate": {
"type": "string",
"metadata": {
"description": "The end date for the budget in YYYY-MM-DD format. If not provided, we default this to 10 years from the start date."
}
},
"operator": {
"type": "string",
"defaultValue": "GreaterThan",
"allowedValues": [
"EqualTo",
"GreaterThan",
"GreaterThanOrEqualTo"
],
"metadata": {
"description": "The comparison operator."
}
},
"contactGroups": {
"type": "string",
"metadata": {
"description": "The list of action groups to send the budget notification to when the threshold is exceeded. It accepts array of strings."
}
},
"threshold": {
"type": "string",
"defaultValue": "90",
"metadata": {
"description": "Threshold value associated with a notification. Notification is sent when the cost exceeded the threshold. It is always percent and has to be between 0 and 1000."
}
}
},
"variables":{
"resourcegroupID": "[concat(subscription().id, '/resourceGroups/', 'ccl_mcs_maintain')]",
"actionGroupName": "budget Action Group"
},
"resources": [
{
"type": "Microsoft.Consumption/budgets",
"apiVersion": "2019-10-01",
"name": "[concat(parameters('client_initial'), '-MCS-BudgetAlert')]",
"properties": {
"category": "Cost",
"amount": "[parameters('amount')]",
"timeGrain": "[parameters('timeGrain')]",
"timePeriod": {
"startDate": "[parameters('startDate')]",
"endDate": "[parameters('endDate')]"
},
"notifications": {
"First-Notification": {
"enabled": true,
"operator": "[parameters('operator')]",
"threshold": "[parameters('threshold')]",
"contactGroups": "[array(parameters('contactGroups'))]"
}
}
},
"dependsOn": []
}
]
}
TEMPLATE
// NOTE: whilst we show an inline template here, we recommend
// sourcing this from a file for readability/editor support
#parameters_content = file("./modules/budget_alert/parameters.json")
parameters_content = <<-PARAMETER
{
"client_initial": {
"value": ${jsonencode(var.client_initial)}
},
"amount": {
"value": ${jsonencode(var.amount)}
},
"timeGrain": {
"value": ${jsonencode(var.timeGrain)}
},
"startDate": {
"value": ${jsonencode(var.startDate)}
},
"endDate": {
"value": ${jsonencode(var.endDate)}
},
"operator": {
"value": ${jsonencode(var.operator)}
},
"threshold": {
"value": ${jsonencode(var.threshold)}
},
"contactGroups": {
"value": ${jsonencode(var.contactGroups)}
}
}
PARAMETER
}
