[Enhancement]: Allow assigning KMS keys for ECS Fargate ephemeral storage encryption

[markbaird]

Description

This feature was released by AWS yesterday, June 10th, 2024. They provide an AWS CLI example command for enabling the new feature:

aws ecs create-cluster \
  --cluster clusterName \
  --configuration '{"managedStorageConfiguration":{"fargateEphemeralStorageKmsKeyId":"arn:aws:kms:us-west-2:012345678901:key/a1b2c3d4-5678-90ab-cdef-EXAMPLE11111"}}'

Currently only execute_command_configuration is allowed in an ECS cluster configuration in Terraform:

resource "aws_ecs_cluster" "my_cluster" {
  name = "my_cluster"

  configuration {
    execute_command_configuration {
      kms_key_id = aws_kms_key.my_kms_key.id
    }
  }
}

The new configuration needs to be added as a supported option in the ecs_cluster.configuration block, for example:

resource "aws_ecs_cluster" "my_cluster" {
  name = "my_cluster"

  configuration {
    execute_command_configuration {
      kms_key_id = aws_kms_key.my_kms_key.id
    }

   managedStorageConfiguration {
      fargateEphemeralStorageKmsKeyId = aws_kms_key.my_kms_key.id
   }
  }
}

Affected Resource(s) and/or Data Source(s)

aws_ecs_cluster

Potential Terraform Configuration

resource "aws_ecs_cluster" "my_cluster" {
  name = "my_cluster"

  configuration {
    execute_command_configuration {
      kms_key_id = aws_kms_key.my_kms_key.id
    }

   managedStorageConfiguration {
      fargateEphemeralStorageKmsKeyId = aws_kms_key.my_kms_key.id
   }
  }
}

References

https://aws.amazon.com/blogs/compute/securing-amazon-ecs-workloads-on-aws-fargate-with-customer-managed-keys/

Would you like to implement a fix?

No

[github-actions]

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[github-actions]

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Ongoing conversations amongst community members are welcome, however, the issue will be locked after 30 days. Moving conversations to another venue, such as the AWS Provider forum, is recommended. If you have additional concerns, please open a new issue, referencing this one where needed.

[github-actions]

This functionality has been released in v5.59.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

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