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AWS Long Running Instances

What It Does

This policy checks for running instances that have been running longer than the Minimum Age (Days) parameter. It will then take the appropriate action (Stop/Terminate) on the instance.

Functional Description

  • This policy identifies all instances that have been running longer than the Minimum Age (Days) parameter.

Input Parameters

This policy template has the following Input parameters which require value before the policy can be applied.

  • Email addresses to notify - Email addresses of the recipients you wish to notify when new incidents are created.
  • Account Number - The Account number for use with the AWS STS Cross Account Role. Leave blank when using AWS IAM Access key and secret. It only needs to be passed when the desired AWS account is different than the one associated with the Flexera One credential. More information is available in our documentation.
  • Minimum Age (Days) - The minimum age, in days, to consider an instance to be long running.
  • Allow/Deny Regions - Whether to treat Allow/Deny Regions List parameter as allow or deny list. Has no effect if Allow/Deny Regions List is left empty.
  • Allow/Deny Regions List - A list of regions to allow or deny for an AWS account. Please enter the regions code if SCP is enabled. See Available Regions in AWS; otherwise, the policy may fail on regions that are disabled via SCP. Leave blank to consider all the regions.
  • Exclusion Tags - The policy will filter resources containing the specified tags from the results. The following formats are supported:
    • Key - Filter all resources with the specified tag key.
    • Key==Value - Filter all resources with the specified tag key:value pair.
    • Key!=Value - Filter all resources missing the specified tag key:value pair. This will also filter all resources missing the specified tag key.
    • Key=~/Regex/ - Filter all resources where the value for the specified key matches the specified regex string.
    • Key!~/Regex/ - Filter all resources where the value for the specified key does not match the specified regex string. This will also filter all resources missing the specified tag key.
  • Exclusion Tags: Any / All - Whether to filter instances containing any of the specified tags or only those that contain all of them. Only applicable if more than one value is entered in the Exclusion Tags field.
  • Automatic Actions - The policy will automatically take the selected action.

Please note that the "Automatic Actions" parameter contains a list of actions that can be performed on the resources. When it is selected, the policy will automatically execute the corresponding action on the data that failed the checks, post incident generation. Please leave this parameter set to "No Automatic Actions" for manual action. For example if a user selects the "Terminate Instances" action while applying the policy, all the resources that didn't satisfy the policy condition will be terminated.

Policy Actions

  • Sends an email notification
  • Stop virtual machines after approval
  • Terminate virtual machines after approval

Prerequisites

This Policy Template uses Credentials for authenticating to datasources -- in order to apply this policy you must have a Credential registered in the system that is compatible with this policy. If there are no Credentials listed when you apply the policy, please contact your Flexera Org Admin and ask them to register a Credential that is compatible with this policy. The information below should be consulted when creating the credential(s).

Credential configuration

For administrators creating and managing credentials to use with this policy, the following information is needed:

  • AWS Credential (provider=aws) which has the following permissions:

    • ec2:DescribeRegions
    • ec2:DescribeInstances
    • ec2:DescribeInstanceStatus*
    • ec2:StopInstances*
    • ec2:TerminateInstances*
    • sts:GetCallerIdentity

    * Only required for taking action (stopping or terminating instances); the policy will still function in a read-only capacity without these permissions.

    Example IAM Permission Policy:

    {
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "ec2:DescribeRegions",
                "ec2:DescribeInstances",
                "ec2:DescribeInstanceStatus",
                "ec2:StopInstances",
                "ec2:TerminateInstances",
                "sts:GetCallerIdentity"
            ],
            "Resource": "*"
        }
    ]
}

  • Flexera Credential (provider=flexera) which has the following roles:

    • billing_center_viewer

The Provider-Specific Credentials page in the docs has detailed instructions for setting up Credentials for the most common providers.

Supported Clouds

This policy template supports the following clouds:

  • AWS

Cost

This policy template does not incur any cloud costs.