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aws_auto_scaling_groups resource

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Use the aws_auto_scaling_groups InSpec audit resource to test the properties of a collection of AWS Auto Scaling Groups.


An aws_auto_scaling_groups resource block returns all Auto Scaling Groups and allows the testing of those ASGs.

describe aws_auto_scaling_groups do
  its('names') { should include 'group-name' }


This resource does not expect any parameters.

See also the AWS documentation on Auto Scaling Group.


Property Description
min_sizes An integer indicating the minimum number of instances in the auto scaling group
max_sizes An integer indicating the maximum number of instances in the auto scaling group
desired_capacities An integer indicating the desired number of instances in the auto scaling group
launch_configuration_names The name of the auto scaling launch configuration associated with the auto scaling group
vpc_zone_identifiers An array of strings corresponding to the subnet IDs associated with the auto scaling group
health_check_types The service to use for the health checks. The valid values are EC2 and ELB.
tags A hash of key-value pairs corresponding to the tags associated with the entity.
entries Provides access to the raw results of the query, which can be treated as an array of hashes.


Ensure there are no groups with incorrect vpc_zone_identifiers.

  describe aws_auto_scaling_groups do
    it                          { should exist }
    its('vpc_zone_identifiers') { should_not include 'UNDESIRED-ZONE'}


For a full list of available matchers, please visit our matchers page.


The control will pass if the describe returns at least one result.

Use should_not to test the entity should not exist.

describe aws_auto_scaling_groups.where( <property>: <value>) do
  it { should exist }

describe aws_auto_scaling_groups.where( <property>: <value>) do
  it { should_not exist }

AWS Permissions

Your Principal will need the autoscaling:Describe* actions with Effect set to Allow. You can find detailed documentation at Actions, Resources, and Condition Keys for Amazon Auto Scaling Groups.

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