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: / usr / local / aws-cli / v2 / 2.22.17 / dist / awscli / examples / ec2 /

Filename : modify-ebs-default-kms-key-id.rst

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**To set your default CMK for EBS encryption**

The following ``modify-ebs-default-kms-key-id`` example sets the specified CMK as the default CMK for EBS encryption for your AWS account in the current Region. ::

    aws ec2 modify-ebs-default-kms-key-id \
        --kms-key-id alias/my-cmk
  
Output::

    {
        "KmsKeyId": "arn:aws:kms:us-west-2:123456789012:key/0ea3fef3-80a7-4778-9d8c-1c0c6EXAMPLE"
    }