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101 lines
2.7 KiB
Text
101 lines
2.7 KiB
Text
---
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title: About the aws_cloudwatch_alarm Resource
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platform: aws
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---
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# aws\_cloudwatch\_alarm
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Use the `aws_cloudwatch_alarm` Chef InSpec audit resource to test properties of a single Cloudwatch Alarm.
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Cloudwatch Alarms are currently identified using the metric name and metric namespace. Future work may allow other approaches to identifying alarms.
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<br>
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## Availability
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### Installation
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This resource is distributed along with Chef InSpec itself. You can use it automatically.
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### Version
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This resource first became available in v2.0.16 of InSpec.
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## Syntax
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An `aws_cloudwatch_alarm` resource block searches for a Cloudwatch Alarm, specified by several search options. If more than one Alarm matches, an error occurs.
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# Look for a specific alarm
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aws_cloudwatch_alarm(
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metric_name: 'my-metric-name',
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metric_namespace: 'my-metric-namespace',
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) do
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it { should exist }
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end
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<br>
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## Examples
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The following examples show how to use this Chef InSpec audit resource.
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### Ensure an Alarm has at least one alarm action
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describe aws_cloudwatch_alarm(
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metric: 'my-metric-name',
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metric_namespace: 'my-metric-namespace',
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) do
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its('alarm_actions') { should_not be_empty }
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end
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<br>
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## Properties
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* `alarm_actions`
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## Property Examples
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### alarm\_actions
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`alarm_actions` returns a list of strings. Each string is the ARN of an action that will be taken should the alarm be triggered.
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# Ensure that the alarm has at least one action
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describe aws_cloudwatch_alarm(
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metric: 'bed-metric',
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metric_namespace: 'my-metric-namespace',
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) do
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its('alarm_actions') { should_not be_empty }
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end
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<br>
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## Matchers
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This Chef InSpec audit resource has the following special matchers. For a full list of available matchers, please visit our [matchers page](https://www.inspec.io/docs/reference/matchers/).
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### exists
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The control will pass if a Cloudwatch Alarm could be found. Use `should_not` if you expect zero matches.
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# Expect good metric
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describe aws_cloudwatch_alarm(
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metric: 'good-metric',
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metric_namespace: 'my-metric-namespace',
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) do
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it { should exist }
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end
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# Disallow alarms based on bad-metric
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describe aws_cloudwatch_alarm(
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metric: 'bed-metric',
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metric_namespace: 'my-metric-namespace',
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) do
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it { should_not exist }
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end
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## AWS Permissions
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Your [Principal](https://docs.aws.amazon.com/IAM/latest/UserGuide/intro-structure.html#intro-structure-principal) will need the `cloudwatch:DescribeAlarmsForMetric` action with Effect set to Allow.
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You can find detailed documentation at [Actions, Resources, and Condition Keys for Amazon CloudWatch](https://docs.aws.amazon.com/IAM/latest/UserGuide/list_amazoncloudwatch.html).
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