AWSConfigRemediation-DeleteUnusedENI - Amazon Systems Manager Automation runbook reference
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The AWSConfigRemediation-DeleteUnusedENI runbook deletes an elastic network interface (ENI) that has an attachment status of detached .

Run this Automation (console)

Document type





Linux, macOS, Windows


  • AutomationAssumeRole

    Type: String

    Allowed values: ^arn:(?:aws|aws-us-gov|aws-cn):iam::\d{12}:role\/[\w+=,.@/-]+$

    Description: (Required) The Amazon Resource Name (ARN) of the Amazon Identity and Access Management (IAM) role that allows Systems Manager Automation to perform the actions on your behalf.

  • NetworkInterfaceId

    Type: String

    Description: (Required) The ID of the ENI that you want to delete.

Required IAM permissions

The AutomationAssumeRole parameter requires the following actions to successfully use the runbook.

  • ssm:StartAutomationExecution

  • ssm:GetAutomationExecution

  • ec2:DeleteNetworkInterface

  • ec2:DescribeNetworkInterfaces

Document Steps

  • aws:executeAwsApi - Deletes the ENI you specify in the NetworkInterfaceId parameter.

  • aws:executeScript - Verifies the ENI has been deleted.