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---
layout: "librato"
page_title: "Librato: librato_alert"
sidebar_current: "docs-librato-resource-alert"
description: |-
Provides a Librato Alert resource. This can be used to create and manage alerts on Librato.
---
# librato\_alert
Provides a Librato Alert resource. This can be used to
create and manage alerts on Librato.
## Example Usage
```hcl
# Create a new Librato alert
resource "librato_alert" "myalert" {
name = "MyAlert"
description = "A Test Alert"
services = ["${librato_service.myservice.id}"]
condition {
type = "above"
threshold = 10
metric_name = "librato.cpu.percent.idle"
}
}
```
## Argument Reference
The following arguments are supported:
* `name` - (Required) The name of the alert.
* `description` - (Required) Description of the alert.
* `active` - whether the alert is active (can be triggered). Defaults to true.
* `rearm_seconds` - minimum amount of time between sending alert notifications, in seconds.
* `services` - list of notification service IDs.
* `condition` - A trigger condition for the alert. Conditions documented below.
* `attributes` - A hash of additional attribtues for the alert. Attributes documented below.
## Attributes Reference
The following attributes are exported:
* `id` - The ID of the alert.
* `name` - The name of the alert.
* `description` - (Required) Description of the alert.
* `active` - whether the alert is active (can be triggered). Defaults to true.
* `rearm_seconds` - minimum amount of time between sending alert notifications, in seconds.
* `services` - list of notification service IDs.
* `condition` - A trigger condition for the alert. Conditions documented below.
Conditions (`condition`) support the following:
* `type` - The type of condition. Must be one of `above`, `below` or `absent`.
* `metric_name`- The name of the metric this alert condition applies to.
* `source`- A source expression which identifies which sources for the given metric to monitor.
* `detect_reset` - boolean: toggles the method used to calculate the delta from the previous sample when the summary_function is `derivative`.
* `duration` - number of seconds condition must be true to fire the alert (required for type `absent`).
* `threshold` - float: measurements over this number will fire the alert (only for `above` or `below`).
* `summary_function` - Indicates which statistic of an aggregated measurement to alert on. ((only for `above` or `below`).
Attributes (`attributes`) support the following:
* `runbook_url` - a URL for the runbook to be followed when this alert is firing. Used in the Librato UI if set.